+----------------------------------------------------------------------+ | LinuxSecurity.com Weekly Newsletter | | October 2nd, 2009 Volume 10, Number 40 | | | | Editorial Team: Dave Wreski <dwreski@xxxxxxxxxxxxxxxxx> | | Benjamin D. Thomas <bthomas@xxxxxxxxxxxxxxxxx> | +----------------------------------------------------------------------+ Thank you for reading the LinuxSecurity.com weekly security newsletter. The purpose of this document is to provide our readers with a quick summary of each week's most relevant Linux security headlines. This week, advisories were released for horde, shibboleth, xmltooling, newt, backintime, gnutls, asterisk, rubygem, proftpd, xmp, cyrus, cURL, backuppc, xkeyboard-config, mdadm, ldtect, postgresql, kdepim4, aria, drakxtools, newt, php, glib, enlinks, xen, kernel, openssh, kvm, samba, and dovecot. The distributors include Debian, Fedora, Gentoo, Mandriva, Red Hat, and Ubuntu. --- >> Linux+DVD Magazine << In each issue you can find information concerning the best use of Linux: safety, databases, multimedia, scientific tools, entertainment, programming, e-mail, news and desktop environments. Catch up with what professional network and database administrators, system programmers, webmasters and all those who believe in the power of Open Source software are doing! http://www.linuxsecurity.com/ads/adclick.php?bannerid=26 --- Review: Googling Security: How Much Does Google Know About You -------------------------------------------------------------- If I ask "How much do you know about Google?" You may not take even a second to respond. But if I may ask "How much does Google know about you"? You may instantly reply "Wait... what!? Do they!?" The book "Googling Security: How Much Does Google Know About You" by Greg Conti (Computer Science Professor at West Point) is the first book to reveal how Google's vast information stockpiles could be used against you or your business and what you can do to protect yourself. http://www.linuxsecurity.com/content/view/145939 --- A Secure Nagios Server ---------------------- Nagios is a monitoring software designed to let you know about problems on your hosts and networks quickly. You can configure it to be used on any network. Setting up a Nagios server on any Linux distribution is a very quick process however to make it a secure setup it takes some work. This article will not show you how to install Nagios since there are tons of them out there but it will show you in detail ways to improve your Nagios security. http://www.linuxsecurity.com/content/view/144088 --> Take advantage of the LinuxSecurity.com Quick Reference Card! <-- --> http://www.linuxsecurity.com/docs/QuickRefCard.pdf <-- ------------------------------------------------------------------------ * EnGarde Secure Community 3.0.22 Now Available! (Dec 9) ------------------------------------------------------ Guardian Digital is happy to announce the release of EnGarde Secure Community 3.0.22 (Version 3.0, Release 22). This release includes many updated packages and bug fixes and some feature enhancements to the EnGarde Secure Linux Installer and the SELinux policy. http://www.linuxsecurity.com/content/view/145668 ------------------------------------------------------------------------ * Debian: New horde3 packages fix arbitrary code execution (Sep 28) ----------------------------------------------------------------- http://www.linuxsecurity.com/content/view/150242 * Debian: New Shibboleth 1.x packages fix potential code execution (Sep 28) ------------------------------------------------------------------------- http://www.linuxsecurity.com/content/view/150241 * Debian: New xmltooling packages fix potential code execution (Sep 24) --------------------------------------------------------------------- http://www.linuxsecurity.com/content/view/150221 * Debian: New newt packages fix arbitrary code execution (Sep 24) --------------------------------------------------------------- http://www.linuxsecurity.com/content/view/150211 ------------------------------------------------------------------------ * Fedora 11 Update: newt-0.52.10-4.fc11 (Sep 25) ---------------------------------------------- Fixes a buffer overflow in textbox, which could be exploited to execute arbitrary code. http://www.linuxsecurity.com/content/view/150237 * Fedora 10 Update: newt-0.52.10-2.fc10 (Sep 25) ---------------------------------------------- Fixes a buffer overflow in textbox, which could be exploited to execute arbitrary code. http://www.linuxsecurity.com/content/view/150236 * Fedora 11 Update: backintime-0.9.26-3.fc11 (Sep 25) --------------------------------------------------- http://www.linuxsecurity.com/content/view/150234 * Fedora 10 Update: backintime-0.9.26-3.fc10 (Sep 25) --------------------------------------------------- http://www.linuxsecurity.com/content/view/150235 * Fedora 10 Update: gnutls-2.4.2-5.fc10 (Sep 25) ---------------------------------------------- This update fixes handling of NUL characters in certificate Common Name or subjectAltName fields especially in regards to comparsion to hostnames. http://www.linuxsecurity.com/content/view/150232 * Fedora 11 Update: asterisk-1.6.1.6-1.fc11 (Sep 25) -------------------------------------------------- Update to 1.6.1.6 to fix many bugs... http://www.linuxsecurity.com/content/view/150233 * Fedora 11 Update: rubygem-actionpack-2.3.3-2.fc11 (Sep 25) ---------------------------------------------------------- A vulnerability is found on Ruby on Rails in the escaping code for the form helpers, which also affects the rpms shipped in Fedora Project. Attackers who can inject deliberately malformed unicode strings into the form helpers can defeat the escaping checks and inject arbitrary HTML. This issue has been tagged as CVE-2009-3009. These new rpms will fix this issue. http://www.linuxsecurity.com/content/view/150229 * Fedora 11 Update: rubygem-activesupport-2.3.3-2.fc11 (Sep 25) ------------------------------------------------------------- A vulnerability is found on Ruby on Rails in the escaping code for the form helpers, which also affects the rpms shipped in Fedora Project. Attackers who can inject deliberately malformed unicode strings into the form helpers can defeat the escaping checks and inject arbitrary HTML. This issue has been tagged as CVE-2009-3009. These new rpms will fix this issue. http://www.linuxsecurity.com/content/view/150230 * Fedora 11 Update: gnutls-2.6.6-3.fc11 (Sep 25) ---------------------------------------------- This update fixes handling of NUL characters in certificate Common Name or subjectAltName fields especially in regards to comparsion to hostnames. http://www.linuxsecurity.com/content/view/150231 * Fedora 10 Update: asterisk-1.6.0.15-1.fc10 (Sep 25) --------------------------------------------------- Update to 1.6.0.15 to fix many bugs... http://www.linuxsecurity.com/content/view/150228 * Fedora 10 Update: proftpd-1.3.2a-5.fc10 (Sep 24) ------------------------------------------------ This update has a large number of changes from previous Fedora packages; the highlights are as follows: - Update to upstream release 1.3.2a - Fix SQL injection vulnerability at login (#485125, CVE-2009-0542) - Fix SELinux compatibility (#498375) - Fix audit logging (#506735) - Fix default configuration (#509251) - Many new loadable modules including mod_ctrls_admin and mod_wrap2 - National Language Support (RFC 2640) - Enable/disable common features in /etc/sysconfig/proftpd http://www.linuxsecurity.com/content/view/150210 * Fedora 10 Update: xmp-2.7.1-1.fc10 (Sep 24) ------------------------------------------- Update to latest stable release. Multiple bugfixes and memory leak fixes. Fixes for buffer overflows in DTT and OXM loaders. http://www.linuxsecurity.com/content/view/150208 * Fedora 11 Update: cyrus-imapd-2.3.15-1.fc11 (Sep 24) ---------------------------------------------------- Fixed multiple stack-based buffer overflows in libsieve, which allowed context- dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted SIEVE script. http://www.linuxsecurity.com/content/view/150209 * Fedora 10 Update: cyrus-imapd-2.3.15-1.fc10 (Sep 24) ---------------------------------------------------- Fixed multiple stack-based buffer overflows in libsieve, which allowed context- dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted SIEVE script. http://www.linuxsecurity.com/content/view/150207 * Fedora 11 Update: xmp-2.7.1-1.fc11 (Sep 24) ------------------------------------------- Update to latest stable release. Multiple bugfixes and memory leak fixes. Fixes for buffer overflows in DTT and OXM loaders. http://www.linuxsecurity.com/content/view/150206 * Fedora 10 Update: rubygem-activesupport-2.1.1-2.fc10 (Sep 24) ------------------------------------------------------------- A vulnerability is found on Ruby on Rails in the escaping code for the form helpers, which also affects the rpms shipped in Fedora Project. Attackers who can inject deliberately malformed unicode strings into the form helpers can defeat the escaping checks and inject arbitrary HTML. This issue has been tagged as CVE-2009-3009. These new rpms will fix this issue. http://www.linuxsecurity.com/content/view/150204 * Fedora 10 Update: rubygem-actionpack-2.1.1-3.fc10 (Sep 24) ---------------------------------------------------------- A vulnerability is found on Ruby on Rails in the escaping code for the form helpers, which also affects the rpms shipped in Fedora Project. Attackers who can inject deliberately malformed unicode strings into the form helpers can defeat the escaping checks and inject arbitrary HTML. This issue has been tagged as CVE-2009-3009. These new rpms will fix this issue. http://www.linuxsecurity.com/content/view/150205 ------------------------------------------------------------------------ * Gentoo: cURL Certificate validation error (Sep 25) -------------------------------------------------- =3D=3D=3D=3D=3D=3D=3D=3D An error in the X.509 certificate handling of cURL might enable remote attackers to conduct man-in-the-middle attacks. http://www.linuxsecurity.com/content/view/150223 ------------------------------------------------------------------------ * Mandriva: Subject: [Security Announce] [ MDVSA-2009:254 ] graphviz (Oct 1) -------------------------------------------------------------------------- A vulnerability was discovered and corrected in graphviz: Stack-based buffer overflow in the push_subg function in parser.y (lib/graph/parser.c) in Graphviz 2.20.2, and possibly earlier versions, allows user-assisted remote attackers to cause a denial of service (memory corruption) or execute arbitrary code via a DOT file with a large number of Agraph_t elements (CVE-2008-4555). This update provides a fix for this vulnerability. http://www.linuxsecurity.com/content/view/150272 * Mandriva: Subject: [Security Announce] [ MDVSA-2009:253 ] backuppc (Oct 1) -------------------------------------------------------------------------- A vulnerability was discovered and corrected in backuppc: CgiUserConfigEdit in BackupPC 3.1.0, when SSH keys and Rsync are in use in a multi-user environment, does not restrict users from the ClientNameAlias function, which allows remote authenticated users to read and write sensitive files by modifying ClientNameAlias to match another system, then initiating a backup or restore (CVE-2009-3369). This update provides a fix for this vulnerability. http://www.linuxsecurity.com/content/view/150269 * Mandriva: Subject: [Security Announce] [ MDVA-2009:178 ] xkeyboard-config (Oct 1) --------------------------------------------------------------------------------- The script mandriva-setup-keyboard, used to set the xkb options on HAL devices, did not set xkb.model. This would case Brazillian ABNT2 keyboards to output the wrong character for the keypad dot key. This update fixes this issue. You may need to restart the service haldaemon or reboot for this change to take effect. http://www.linuxsecurity.com/content/view/150268 * Mandriva: Subject: [Security Announce] [ MDVA-2009:177 ] x11-server (Oct 1) --------------------------------------------------------------------------- Display keeps sleeping. Settings set not to but within seconds on being idle screen sleeps or hibernates. This update fixes this issue making the users settings about display respected. http://www.linuxsecurity.com/content/view/150267 * Mandriva: Subject: [Security Announce] [ MDVA-2009:176 ] mdadm (Oct 1) ---------------------------------------------------------------------- updated mdadm packages fix a bug causing raid arrays not being fully assembled at boot. http://www.linuxsecurity.com/content/view/150266 * Mandriva: Subject: [Security Announce] [ MDVA-2009:170-1 ] ldetect (Oct 1) -------------------------------------------------------------------------- This update fixes a very trivial issue with lspcidrake displaying warnings about some USB devices. Update: ldetect was built against the wrong modprobe library for MES5. This update corrects this problem. http://www.linuxsecurity.com/content/view/150265 * Mandriva: Subject: [Security Announce] [ MDVSA-2009:178 ] perl-IO-Socket-SSL (Sep 30) ------------------------------------------------------------------------------------- A vulnerability was discovered and corrected in perl-IO-Socket-SSL: The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate (CVE-2009-3024). This update provides a fix for this vulnerability. http://www.linuxsecurity.com/content/view/150264 * Mandriva: Subject: [Security Announce] [ MDVSA-2009:177 ] postgresql (Sep 30) ----------------------------------------------------------------------------- The core server component in PostgreSQL 8.4 before 8.4.1, 8.3 before 8.3.8, and 8.2 before 8.2.14 allows remote authenticated users to cause a denial of service (backend shutdown) by re-LOAD-ing libraries from a certain plugins directory (CVE-2009-3229). The core server component in PostgreSQL 8.4 before 8.4.1, 8.3 before 8.3.8, 8.2 before 8.2.14, 8.1 before 8.1.18, 8.0 before 8.0.22, and 7.4 before 7.4.26 does not use the appropriate privileges for the (1) RESET ROLE and (2) RESET SESSION AUTHORIZATION operations, which allows remote authenticated users to gain privileges. NOTE: this is due to an incomplete fix for CVE-2007-6600 (CVE-2009-3230). The core server component in PostgreSQL 8.3 before 8.3.8 and 8.2 before 8.2.14, when using LDAP authentication with anonymous binds, allows remote attackers to bypass authentication via an empty password (CVE-2009-3231). This update provides a fix for this vulnerability. http://www.linuxsecurity.com/content/view/150262 * Mandriva: Subject: [Security Announce] [ MDVSA-2009:176 ] postgresql (Sep 30) ----------------------------------------------------------------------------- The core server component in PostgreSQL 8.4 before 8.4.1, 8.3 before 8.3.8, 8.2 before 8.2.14, 8.1 before 8.1.18, 8.0 before 8.0.22, and 7.4 before 7.4.26 does not use the appropriate privileges for the (1) RESET ROLE and (2) RESET SESSION AUTHORIZATION operations, which allows remote authenticated users to gain privileges. NOTE: this is due to an incomplete fix for CVE-2007-6600 (CVE-2009-3230). This update provides a fix for this vulnerability. http://www.linuxsecurity.com/content/view/150261 * Mandriva: Subject: [Security Announce] [ MDVA-2009:175 ] kdepim4 (Sep 29) ------------------------------------------------------------------------- Kmail users using DIMAP ( Disconected IMAP ) can have occasional deletion of folder emails in server in situations of local/server name move. This fix solves this major bug. http://www.linuxsecurity.com/content/view/150252 * Mandriva: Subject: [Security Announce] [ MDVA-2009:174 ] aria2 (Sep 29) ----------------------------------------------------------------------- This update fixes an issue with aria2: - the default path aria2c uses to look for certificates for public CAs isn't the right one on mandriva systems http://www.linuxsecurity.com/content/view/150251 * Mandriva: Subject: [Security Announce] [ MDVA-2009:173 ] ldetect-lst (Sep 29) ----------------------------------------------------------------------------- This makes the configuration tools use the proper driver for two Matrox cards (bug #53564). It also adds support for ION video card (bug #53515) Last but not least, it defaults to use the nvidia driver instead of the nv one for nVidia Geforce2 MX/MX, thus enabling one to use 3D (bug #53841) http://www.linuxsecurity.com/content/view/150250 * Mandriva: Subject: [Security Announce] [ MDVA-2009:172 ] drakxtools (Sep 29) ---------------------------------------------------------------------------- This update fixes several minor issues with draksound: - it fixes starting firefox for tools help (bug #29775) - it makes tools aware of the snd_ctxfi sound driver - it fixes memory detection in harddrake (bug #50106) It also enable harddrake not to configure framebuffer and splash removal for OEM. http://www.linuxsecurity.com/content/view/150249 * Mandriva: Subject: [Security Announce] [ MDVSA-2009:249 ] newt (Sep 27) ----------------------------------------------------------------------- A vulnerability was discovered and corrected in newt: A heap-based buffer overflow flaw was found in the way newt processes content that is to be displayed in a text dialog box. A local attacker could issue a specially-crafted text dialog box display request (direct or via a custom application), leading to a denial of service (application crash) or, potentially, arbitrary code execution with the privileges of the user running the application using the newt library (CVE-2009-2905). This update provides a solution to this vulnerability. http://www.linuxsecurity.com/content/view/150240 * Mandriva: Subject: [Security Announce] [ MDVSA-2009:248 ] php (Sep 25) ---------------------------------------------------------------------- Multiple vulnerabilities was discovered and corrected in php: The php_openssl_apply_verification_policy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates (CVE-2009-3291). Unspecified vulnerability in PHP before 5.2.11 has unknown impact and attack vectors related to missing sanity checks around exif processing. (CVE-2009-3292) Unspecified vulnerability in the imagecolortransparent function in PHP before 5.2.11 has unknown impact and attack vectors related to an incorrect sanity check for the color index. (CVE-2009-3293). However in Mandriva we don't use the bundled libgd source in php per default, there is a unsupported package in contrib named php-gd-bundled that eventually will get updated to pickup these fixes. This update provides a solution to these vulnerabilities. http://www.linuxsecurity.com/content/view/150227 * Mandriva: Subject: [Security Announce] [ MDVSA-2009:247 ] php (Sep 25) ---------------------------------------------------------------------- Multiple vulnerabilities was discovered and corrected in php: The dba_replace function in PHP 5.2.6 and 4.x allows context-dependent attackers to cause a denial of service (file truncation) via a key with the NULL byte. NOTE: this might only be a vulnerability in limited circumstances in which the attacker can modify or add database entries but does not have permissions to truncate the file (CVE-2008-7068). The php_openssl_apply_verification_policy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates (CVE-2009-3291). Unspecified vulnerability in PHP before 5.2.11 has unknown impact and attack vectors related to missing sanity checks around exif processing. (CVE-2009-3292) Unspecified vulnerability in the imagecolortransparent function in PHP before 5.2.11 has unknown impact and attack vectors related to an incorrect sanity check for the color index. (CVE-2009-3293). However in Mandriva we don't use the bundled libgd source in php per default, there is a unsupported package in contrib named php-gd-bundled that eventually will get updated to pickup these fixes. This update provides a solution to these vulnerabilities. http://www.linuxsecurity.com/content/view/150226 * Mandriva: Subject: [Security Announce] [ MDVSA-2009:246 ] php (Sep 25) ---------------------------------------------------------------------- Multiple vulnerabilities was discovered and corrected in php: The dba_replace function in PHP 5.2.6 and 4.x allows context-dependent attackers to cause a denial of service (file truncation) via a key with the NULL byte. NOTE: this might only be a vulnerability in limited circumstances in which the attacker can modify or add database entries but does not have permissions to truncate the file (CVE-2008-7068). The php_openssl_apply_verification_policy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates (CVE-2009-3291). Unspecified vulnerability in PHP before 5.2.11 has unknown impact and attack vectors related to missing sanity checks around exif processing. (CVE-2009-3292) Unspecified vulnerability in the imagecolortransparent function in PHP before 5.2.11 has unknown impact and attack vectors related to an incorrect sanity check for the color index. (CVE-2009-3293) This update provides a solution to these vulnerabilities. http://www.linuxsecurity.com/content/view/150224 * Mandriva: Subject: [Security Announce] [ MDVA-2009:171 ] ldetect-lst (Sep 24) ----------------------------------------------------------------------------- This makes the configuration tools use the proper driver for two Matrox cards (bug #53564) http://www.linuxsecurity.com/content/view/150220 * Mandriva: Subject: [Security Announce] [ MDVA-2009:170 ] ldetect (Sep 24) ------------------------------------------------------------------------- This update fixes a very trivial issue with lspcidrake displaying warnings about some USB devices. http://www.linuxsecurity.com/content/view/150219 * Mandriva: Subject: [Security Announce] [ MDVA-2009:169-1 ] drakxtools (Sep 24) ------------------------------------------------------------------------------ These updated packages fix a bug preventing the use of firefox if the user had seen the help of drak3d in the drak3d session before first running firefox (bug #29775). These updated packages also adds support for VirtIO devices. Last but not least it ensures we have a recent enough perl-Gtk2 binding (eg: after failed KDE3 upgrade (bug #51870)). Update: The previous update was incomplete, this update corrects this. http://www.linuxsecurity.com/content/view/150218 * Mandriva: Subject: [Security Announce] [ MDVA-2009:169 ] drakxtools (Sep 24) ---------------------------------------------------------------------------- These updated packages fix a bug preventing the use of firefox if the user had seen the help of drak3d in the drak3d session before first running firefox (bug #29775). These updated packages also adds support for VirtIO devices. Last but not least it ensures we have a recent enough perl-Gtk2 binding (eg: after failed KDE3 upgrade (bug #51870)). http://www.linuxsecurity.com/content/view/150214 * Mandriva: Subject: [Security Announce] [ MDVSA-2009:245 ] glib2.0 (Sep 24) -------------------------------------------------------------------------- A vulnerability was discovered and corrected in glib2.0: The g_file_copy function in glib 2.0 sets the permissions of a target file to the permissions of a symbolic link (777), which allows user-assisted local users to modify files of other users, as demonstrated by using Nautilus to modify the permissions of the user home directory (CVE-2009-3289). This update provides a solution to this vulnerability. http://www.linuxsecurity.com/content/view/150213 ------------------------------------------------------------------------ * RedHat: Important: elinks security update (Oct 1) ------------------------------------------------- An updated elinks package that fixes two security issues is now available for Red Hat Enterprise Linux 4 and 5. This update has been rated as having important security impact by the Red Hat Security Response Team. http://www.linuxsecurity.com/content/view/150270 * RedHat: Moderate: xen security and bug fix update (Oct 1) --------------------------------------------------------- Updated xen packages that fix a security issue and multiple bugs are now available for Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team. http://www.linuxsecurity.com/content/view/150271 * RedHat: Important: kernel security update (Sep 30) -------------------------------------------------- Updated kernel packages that fix several security issues are now available for Red Hat Enterprise Linux 4.7 Extended Update Support. This update has been rated as having important security impact by the Red Hat Security Response Team. http://www.linuxsecurity.com/content/view/150258 * RedHat: Moderate: openssh security update (Sep 30) -------------------------------------------------- Updated openssh packages that fix a security issue are now available for Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team. http://www.linuxsecurity.com/content/view/150259 * RedHat: Moderate: kernel security and bug fix update (Sep 29) ------------------------------------------------------------- Updated kernel packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team. http://www.linuxsecurity.com/content/view/150253 * RedHat: Important: kvm security and bug fix update (Sep 29) ----------------------------------------------------------- Updated kvm packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team. http://www.linuxsecurity.com/content/view/150247 * RedHat: Important: kernel security and bug fix update (Sep 29) -------------------------------------------------------------- Updated kernel packages that fix two security issues and several bugs are now available for Red Hat Enterprise Linux 5.3 Extended Update Support. This update has been rated as having important security impact by the Red Hat Security Response Team. http://www.linuxsecurity.com/content/view/150248 * RedHat: Moderate: newt security update (Sep 24) ----------------------------------------------- Updated newt packages that fix one security issue are now available for Red Hat Enterprise Linux 3, 4, and 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team. http://www.linuxsecurity.com/content/view/150222 ------------------------------------------------------------------------ * Ubuntu: Samba vulnerabilities (Oct 1) -------------------------------------- J. David Hester discovered that Samba incorrectly handled users that lack home directories when the automated [homes] share is enabled. An authenticated user could connect to that share name and gain access to the whole filesystem. (CVE-2009-2813) Tim Prouty discovered that the smbd daemon in Samba incorrectly handled certain unexpected network replies. A remote attacker could send malicious replies to the server and cause smbd to use all available CPU, leading to a denial of service. (CVE-2009-2906) Ronald Volgers discovered that the mount.cifs utility, when installed as a setuid program, would not verify user permissions before opening a credentials file. A local user could exploit this to use or read the contents of unauthorized credential files. (CVE-2009-2948) Reinhard Nil discovered that the smbclient utility contained format string vulnerabilities in its file name handling. Because of security features in Ubuntu, exploitation of this vulnerability is limited. If a user or automated system were tricked into processing a specially crafted file name, smbclient could be made to crash, possibly leading to a denial of service. This only affected Ubuntu 8.10. (CVE-2009-1886) Jeremy Allison discovered that the smbd daemon in Samba incorrectly handled permissions to modify access control lists when dos filemode is enabled. A remote attacker could exploit this to modify access control lists. This only affected Ubuntu 8.10 and Ubuntu 9.04. (CVE-2009-1886) http://www.linuxsecurity.com/content/view/150273 * Ubuntu: Dovecot vulnerabilities (Sep 28) ----------------------------------------- It was discovered that the ACL plugin in Dovecot would incorrectly handle negative access rights. An attacker could exploit this flaw to access the Dovecot server, bypassing the indended access restrictions. This only affected Ubuntu 8.04 LTS. (CVE-2008-4577) It was discovered that the ManageSieve service in Dovecot incorrectly handled ".." in script names. A remote attacker could exploit this to read and modify arbitrary sieve files on the server. This only affected Ubuntu 8.10. (CVE-2008-5301) It was discovered that the Sieve plugin in Dovecot incorrectly handled certain sieve scripts. An authenticated user could exploit this with a crafted sieve script to cause a denial of service or possibly execute arbitrary code. (CVE-2009-2632, CVE-2009-3235) http://www.linuxsecurity.com/content/view/150244 * Ubuntu: Newt vulnerability (Sep 24) ------------------------------------ Miroslav Lichvar discovered that Newt incorrectly handled rendering in a text box. An attacker could exploit this and cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. http://www.linuxsecurity.com/content/view/150212 ------------------------------------------------------------------------ Distributed by: Guardian Digital, Inc. LinuxSecurity.com To unsubscribe email vuln-newsletter-request@xxxxxxxxxxxxxxxxx with "unsubscribe" in the subject of the message. ------------------------------------------------------------------------
