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Fedora Legacy Update AdvisorySynopsis: Updated kernel packages fix security issues Advisory ID: FLSA:2336 Issue date: 2005-02-24 Product: Red Hat Linux, Fedora Core Keywords: Bugfix Cross references: https://bugzilla.fedora.us/show_bug.cgi?id=2336 CVE Names: CAN-2004-0177 CAN-2004-0685 CAN-2004-0814 CAN-2004-0883 CAN-2004-0949 CAN-2004-1016 CAN-2004-1017 CAN-2004-1056 CAN-2004-1068 CAN-2004-1070 CAN-2004-1071 CAN-2004-1072 CAN-2004-1073 CAN-2004-1074 CAN-2004-1137 CAN-2004-1234 CAN-2004-1235 CAN-2005-0001 ---------------------------------------------------------------------
--------------------------------------------------------------------- 1. Topic:
Updated kernel packages that fix several security issues are now available.
The Linux kernel handles the basic functions of the operating system.
2. Relevant releases/architectures:
Red Hat Linux 7.3 - i386 Red Hat Linux 9 - i386 Fedora Core 1 - i386
3. Problem description:
This update includes fixes for several security issues:
The ext3 code in kernels before 2.4.26 did not properly initialize journal descriptor blocks. A privileged local user could read portions of kernel memory. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0177 to this issue.
Conectiva discovered flaws in certain USB drivers affecting kernels prior to 2.4.27 which used the copy_to_user function on uninitialized structures. These flaws could allow local users to read small amounts of kernel memory. (CAN-2004-0685)
Multiple race conditions in the terminal layer could allow local users to obtain portions of kernel data via a TIOCSETD ioctl call to a terminal interface that is being accessed by another thread. This could also allow remote attackers to cause a denial of service (panic) by switching from console to PPP line discipline, then quickly sending data that is received during the switch. (CAN-2004-0814)
Stefan Esser discovered various flaws including buffer overflows in the smbfs driver affecting kernels prior to 2.4.28. A local user may be able to cause a denial of service (crash) or possibly gain privileges. In order to exploit these flaws the user would require control of a connected Samba server. (CAN-2004-0883, CAN-2004-0949)
ISEC security research and Georgi Guninski independantly discovered a flaw in the scm_send function in the auxiliary message layer. A local user could create a carefully crafted auxiliary message which could cause a denial of service (system hang). (CAN-2004-1016)
Multiple overflows were discovered and corrected in the io_edgeport driver. (CAN-2004-1017)
The Direct Rendering Manager (DRM) driver does not properly check the DMA lock, which could allow remote attackers or local users to cause a denial of service (X Server crash) and possibly modify the video output. (CAN-2004-1056)
A missing serialization flaw in unix_dgram_recvmsg was discovered that affects kernels prior to 2.4.28. A local user could potentially make use of a race condition in order to gain privileges. (CAN-2004-1068)
Paul Starzetz of iSEC discovered various flaws in the ELF binary loader affecting kernels prior to 2.4.28. A local user could use these flaws to gain read access to executable-only binaries or possibly gain privileges. (CAN-2004-1070, CAN-2004-1071, CAN-2004-1072, CAN-2004-1073, CAN-2004-1074)
ISEC security research discovered multiple vulnerabilities in the IGMP functionality of the kernels. These flaws could allow a local user to cause a denial of service (crash) or potentially gain privileges. Where multicast applications are being used on a system, these flaws may also allow remote users to cause a denial of service. (CAN-2004-1137)
Kirill Korotaev found a flaw in load_elf_binary affecting kernels prior to 2.4.26. A local user could create a carefully crafted binary in such a way that it would cause a denial of service (system crash). (CAN-2004-1234)
iSEC Security Research discovered a VMA handling flaw in the uselib(2) system call of the Linux kernel. A local user could make use of this flaw to gain elevated (root) privileges. (CAN-2004-1235)
iSEC Security Research discovered a flaw in the page fault handler code that could lead to local users gaining elevated (root) privileges on multiprocessor machines. (CAN-2005-0001)
All users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.
4. Solution:
Before applying this update, make sure all previously released errata relevant to your system have been applied.
To install kernel packages manually, use "rpm -ivh <package>" and modify system settings to boot the kernel you have installed. To do this, edit /boot/grub/grub.conf and change the default entry to "default=0" (or, if you have chosen to use LILO as your boot loader, edit /etc/lilo.conf and run lilo)
Please note that this update is also available via yum and apt. Many people find this an easier way to apply updates. To use yum issue:
yum update
or to use apt:
apt-get update; apt-get upgrade
This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. This assumes that you have yum or apt-get configured for obtaining Fedora Legacy content. Please visit http://www.fedoralegacy.org/docs for directions on how to configure yum and apt-get.
Note that this may not automatically pull the new kernel in if you have configured apt/yum to ignore kernels. If so, follow the manual instructions above.
5. Bug IDs fixed:
http://bugzilla.fedora.us - bug #2336 - Kernel bugs
6. RPMs required:
Red Hat Linux 7.3:
SRPM: http://download.fedoralegacy.org/redhat/7.3/updates/SRPMS/kernel-2.4.20-42.7.legacy.src.rpm
i386: http://download.fedoralegacy.org/redhat/7.3/updates/i386/kernel-2.4.20-42.7.legacy.i386.rpm http://download.fedoralegacy.org/redhat/7.3/updates/i386/kernel-BOOT-2.4.20-42.7.legacy.i386.rpm http://download.fedoralegacy.org/redhat/7.3/updates/i386/kernel-doc-2.4.20-42.7.legacy.i386.rpm http://download.fedoralegacy.org/redhat/7.3/updates/i386/kernel-source-2.4.20-42.7.legacy.i386.rpm
i586: http://download.fedoralegacy.org/redhat/7.3/updates/i386/kernel-2.4.20-42.7.legacy.i586.rpm http://download.fedoralegacy.org/redhat/7.3/updates/i386/kernel-smp-2.4.20-42.7.legacy.i586.rpm
i686: http://download.fedoralegacy.org/redhat/7.3/updates/i386/kernel-2.4.20-42.7.legacy.i686.rpm http://download.fedoralegacy.org/redhat/7.3/updates/i386/kernel-bigmem-2.4.20-42.7.legacy.i686.rpm http://download.fedoralegacy.org/redhat/7.3/updates/i386/kernel-smp-2.4.20-42.7.legacy.i686.rpm
athlon: http://download.fedoralegacy.org/redhat/7.3/updates/i386/kernel-2.4.20-42.7.legacy.athlon.rpm http://download.fedoralegacy.org/redhat/7.3/updates/i386/kernel-smp-2.4.20-42.7.legacy.athlon.rpm
Red Hat Linux 9:
SRPM: http://download.fedoralegacy.org/redhat/9/updates/SRPMS/kernel-2.4.20-42.9.legacy.src.rpm
i386: http://download.fedoralegacy.org/redhat/9/updates/i386/kernel-2.4.20-42.9.legacy.i386.rpm http://download.fedoralegacy.org/redhat/9/updates/i386/kernel-BOOT-2.4.20-42.9.legacy.i386.rpm http://download.fedoralegacy.org/redhat/9/updates/i386/kernel-doc-2.4.20-42.9.legacy.i386.rpm http://download.fedoralegacy.org/redhat/9/updates/i386/kernel-source-2.4.20-42.9.legacy.i386.rpm
i586: http://download.fedoralegacy.org/redhat/9/updates/i386/kernel-2.4.20-42.9.legacy.i586.rpm http://download.fedoralegacy.org/redhat/9/updates/i386/kernel-smp-2.4.20-42.9.legacy.i586.rpm
i686: http://download.fedoralegacy.org/redhat/9/updates/i386/kernel-2.4.20-42.9.legacy.i686.rpm http://download.fedoralegacy.org/redhat/9/updates/i386/kernel-bigmem-2.4.20-42.9.legacy.i686.rpm http://download.fedoralegacy.org/redhat/9/updates/i386/kernel-smp-2.4.20-42.9.legacy.i686.rpm
athlon: http://download.fedoralegacy.org/redhat/9/updates/i386/kernel-2.4.20-42.9.legacy.athlon.rpm http://download.fedoralegacy.org/redhat/9/updates/i386/kernel-smp-2.4.20-42.9.legacy.athlon.rpm
Fedora Core 1:
SRPM: http://download.fedoralegacy.org/fedora/1/updates/SRPMS/kernel-2.4.22-1.2199.4.legacy.nptl.src.rpm
i386: http://download.fedoralegacy.org/fedora/1/updates/i386/kernel-BOOT-2.4.22-1.2199.4.legacy.nptl.i386.rpm http://download.fedoralegacy.org/fedora/1/updates/i386/kernel-doc-2.4.22-1.2199.4.legacy.nptl.i386.rpm http://download.fedoralegacy.org/fedora/1/updates/i386/kernel-source-2.4.22-1.2199.4.legacy.nptl.i386.rpm
i586: http://download.fedoralegacy.org/fedora/1/updates/i386/kernel-2.4.22-1.2199.4.legacy.nptl.i586.rpm http://download.fedoralegacy.org/fedora/1/updates/i386/kernel-smp-2.4.22-1.2199.4.legacy.nptl.i586.rpm
i686: http://download.fedoralegacy.org/fedora/1/updates/i386/kernel-2.4.22-1.2199.4.legacy.nptl.i686.rpm http://download.fedoralegacy.org/fedora/1/updates/i386/kernel-smp-2.4.22-1.2199.4.legacy.nptl.i686.rpm
athlon: http://download.fedoralegacy.org/fedora/1/updates/i386/kernel-2.4.22-1.2199.4.legacy.nptl.athlon.rpm http://download.fedoralegacy.org/fedora/1/updates/i386/kernel-smp-2.4.22-1.2199.4.legacy.nptl.athlon.rpm
7. Verification:
SHA1 sum Package Name ---------------------------------------------------------------------
7900b4d4608f6f23f1b19f8545a67bd733493c65 redhat/7.3/updates/i386/kernel-2.4.20-42.7.legacy.athlon.rpm
dad7ced597c96a258e11d0de8437356ac82e40f3 redhat/7.3/updates/i386/kernel-2.4.20-42.7.legacy.i386.rpm
caea6cb5c96897341c71e023e71d90b1b01bdde9 redhat/7.3/updates/i386/kernel-2.4.20-42.7.legacy.i586.rpm
ffe552201b6bfdc5359596ae901bc249a365cec6 redhat/7.3/updates/i386/kernel-2.4.20-42.7.legacy.i686.rpm
4be06cfe9783c4d045fbfff4774e50f308fa6934 redhat/7.3/updates/i386/kernel-bigmem-2.4.20-42.7.legacy.i686.rpm
7d4b1b49e292ade40eb1f14e89338ae8df014981 redhat/7.3/updates/i386/kernel-BOOT-2.4.20-42.7.legacy.i386.rpm
6a17058770d6e6c2b8706232d1ceb60866b36ab0 redhat/7.3/updates/i386/kernel-doc-2.4.20-42.7.legacy.i386.rpm
b8e1b78b834e48ec35906b3924eb2bd12a33e4d6 redhat/7.3/updates/i386/kernel-smp-2.4.20-42.7.legacy.athlon.rpm
55e2477c5ddd3934c2bfbc770ff0df7cce44a6a0 redhat/7.3/updates/i386/kernel-smp-2.4.20-42.7.legacy.i586.rpm
c923851d4e460a672891db11bbc98089189a5a93 redhat/7.3/updates/i386/kernel-smp-2.4.20-42.7.legacy.i686.rpm
dfcf9626635256e898e9696b7c8e58d826069be4 redhat/7.3/updates/i386/kernel-source-2.4.20-42.7.legacy.i386.rpm
f4620b08ec8e2ae3973d5b3e555893ab3a7ce340 redhat/7.3/updates/SRPMS/kernel-2.4.20-42.7.legacy.src.rpm
2d6d73763d1d7631b61c40b8093757466dd24cd7 redhat/9/updates/i386/kernel-2.4.20-42.9.legacy.athlon.rpm
7b1f8f93eb586ae3fbe834670801d45b999700c2 redhat/9/updates/i386/kernel-2.4.20-42.9.legacy.i386.rpm
8d472f8c69a624b310758472c7f387c258f73c02 redhat/9/updates/i386/kernel-2.4.20-42.9.legacy.i586.rpm
618c079b5c9336a0bf0c4e7342616c001eea5f15 redhat/9/updates/i386/kernel-2.4.20-42.9.legacy.i686.rpm
dcc66fd50b44cdb55c543d2d0496de595e627d7a redhat/9/updates/i386/kernel-bigmem-2.4.20-42.9.legacy.i686.rpm
d092d4efcc10b605fdf9724c5bd65560811063c4 redhat/9/updates/i386/kernel-BOOT-2.4.20-42.9.legacy.i386.rpm
d99388a8d0f9b0b7e19aa61d25399dc4e5489427 redhat/9/updates/i386/kernel-doc-2.4.20-42.9.legacy.i386.rpm
ccfaec93e1a5145ec9d91f0d3e7eeab19a3a81a4 redhat/9/updates/i386/kernel-smp-2.4.20-42.9.legacy.athlon.rpm
75e49f1b57037546407f3631a3c5f75fb2d671ee redhat/9/updates/i386/kernel-smp-2.4.20-42.9.legacy.i586.rpm
c7b63e8f26ccb8a237a5918d50e04b112e13f700 redhat/9/updates/i386/kernel-smp-2.4.20-42.9.legacy.i686.rpm
f1e82fb01bcf318ee1e6d48ac3119ee8caa6be11 redhat/9/updates/i386/kernel-source-2.4.20-42.9.legacy.i386.rpm
d11209f3d111ed3e633662c5f651772f11282f8e redhat/9/updates/SRPMS/kernel-2.4.20-42.9.legacy.src.rpm
91df569f7f98a976f2686628c9a45160c8f730c6 fedora/1/updates/i386/kernel-2.4.22-1.2199.4.legacy.nptl.athlon.rpm
1ef2868a7a990521a080925ca81981cafa676258 fedora/1/updates/i386/kernel-2.4.22-1.2199.4.legacy.nptl.i586.rpm
5b093d72e5f7398f3b829c6ce557eb9817042732 fedora/1/updates/i386/kernel-2.4.22-1.2199.4.legacy.nptl.i686.rpm
b66170a9431426138e454ddec7f3b98ec45a10fb fedora/1/updates/i386/kernel-BOOT-2.4.22-1.2199.4.legacy.nptl.i386.rpm
4c5895f14271a8b5bc6e5489c053fba1f96e71f8 fedora/1/updates/i386/kernel-doc-2.4.22-1.2199.4.legacy.nptl.i386.rpm
a358e368bea67f2cbbf32a6a1c9242e1cd7dffeb fedora/1/updates/i386/kernel-smp-2.4.22-1.2199.4.legacy.nptl.athlon.rpm
c16b6217ac2ade811576e303a7eb1ddc0214d692 fedora/1/updates/i386/kernel-smp-2.4.22-1.2199.4.legacy.nptl.i586.rpm
d307317b04336c289cddde005e11c30b188119cb fedora/1/updates/i386/kernel-smp-2.4.22-1.2199.4.legacy.nptl.i686.rpm
3b0301c812ad4379c6eb7bbd7970ab4f9602b37c fedora/1/updates/i386/kernel-source-2.4.22-1.2199.4.legacy.nptl.i386.rpm
d14e7971299e22a38cdeee145028d797ea477a1c fedora/1/updates/SRPMS/kernel-2.4.22-1.2199.4.legacy.nptl.src.rpm
These packages are GPG signed by Fedora Legacy for security. Our key is available from http://www.fedoralegacy org/about/security.php
You can verify each package with the following command:
rpm --checksig -v <filename>
If you only wish to verify that each package has not been corrupted or tampered with, examine only the sha1sum with the following command:
sha1sum <filename>
8. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0177 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0685 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0814 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0883 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0949 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1016 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1017 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1056 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1068 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1070 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1071 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1072 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1073 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1074 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1137 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1234 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1235 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0001
9. Contact:
The Fedora Legacy security contact is <secnotice@xxxxxxxxxxxxxxxx>. More project details at http://www.fedoralegacy.org
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