-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- Debian Security Advisory DSA 439-1 security@debian.org http://www.debian.org/security/ Martin Schulze February 18th, 2004 http://www.debian.org/security/faq - -------------------------------------------------------------------------- Package : kernel-image-2.4.16-lart, kernel-image-2.4.16-netwinder, kernel-image-2.4.16-riscpc, kernel-patch-2.4.16-arm Vulnerability : several vulnerabilities Problem-Type : local Debian-specific: no CVE ID : CAN-2003-0961 CAN-2003-0985 CAN-2004-0077 Several local root exploits have been discovered recently in the Linux kernel. This security advisory updates the PowerPC/Apus kernel for Debian GNU/Linux. The Common Vulnerabilities and Exposures project identifies the following problems that are fixed with this update: CAN-2003-0961: An integer overflow in brk() system call (do_brk() function) for Linux allows a local attacker to gain root privileges. Fixed upstream in Linux 2.4.23. CAN-2003-0985: Paul Starzetz discovered a flaw in bounds checking in mremap() in the Linux kernel (present in version 2.4.x and 2.6.x) which may allow a local attacker to gain root privileges. Version 2.2 is not affected by this bug. Fixed upstream in Linux 2.4.24. CAN-2004-0077: Paul Starzetz and Wojciech Purczynski of isec.pl discovered a critical security vulnerability in the memory management code of Linux inside the mremap(2) system call. Due to missing function return value check of internal functions a local attacker can gain root privileges. Fixed upstream in Linux 2.4.25 and 2.6.3. For the stable distribution (woody) this problem has been fixed in version 2.4.26/20040204 of lart, netwinder and riscpc image and in version 20040204 of kernel-patch-2.4.16-arm. Other architectures will probably mentioned in a separate advisory or are not affected (m68k). For the unstable distribution (sid) these problems will be fixed soon. We recommend that you upgrade your Linux kernel packages immediately. Upgrade Instructions - -------------------- wget url will fetch the file for you dpkg -i file.deb will install the referenced file. If you are using the apt-get package manager, use the line for sources.list as given below: apt-get update will update the internal database apt-get upgrade will install corrected packages You may use an automated update by adding the resources from the footer to the proper configuration. Debian GNU/Linux 3.0 alias woody - -------------------------------- Source archives: http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.16-arm/kernel-patch-2.4.16-arm_20040204.dsc Size/MD5 checksum: 562 7bd0b443e490132da8f26188ca560f75 http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.16-arm/kernel-patch-2.4.16-arm_20040204.tar.gz Size/MD5 checksum: 579045 853b5f05e03217dfb47f28cf852dca4c http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-lart/kernel-image-2.4.16-lart_20040204.dsc Size/MD5 checksum: 586 e2cb96946739cfffd4327ae1e218a982 http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-lart/kernel-image-2.4.16-lart_20040204.tar.gz Size/MD5 checksum: 16443 9b5b8c8311cc6ba23abc2e121882281a http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-netwinder/kernel-image-2.4.16-netwinder_20040204.dsc Size/MD5 checksum: 624 d2258e373574684da142a45ecfc4312f http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-netwinder/kernel-image-2.4.16-netwinder_20040204.tar.gz Size/MD5 checksum: 21783 fc07fb8db829045ef9a8ee6881e1af48 http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-riscpc/kernel-image-2.4.16-riscpc_20040204.dsc Size/MD5 checksum: 592 f2252946f185d1c52796a68a1d442cb0 http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-riscpc/kernel-image-2.4.16-riscpc_20040204.tar.gz Size/MD5 checksum: 19104 144bfd5b87a5daccf879049334b24bcd Architecture independent components: http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.16-arm/kernel-patch-2.4.16-arm_20040204_all.deb Size/MD5 checksum: 583148 6a4951879008cc3d882d6a30112d0cbc ARM architecture: http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-lart/kernel-image-2.4.16-lart_20040204_arm.deb Size/MD5 checksum: 717092 eb20d52fed79cfe95981f1838bc38e0c http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-netwinder/kernel-headers-2.4.16_20040204_arm.deb Size/MD5 checksum: 3421140 3e0dfbdcb48437ab733d43c92deb0157 http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-netwinder/kernel-image-2.4.16-netwinder_20040204_arm.deb Size/MD5 checksum: 6671136 72f1f771e847c593e83179b6dbda4074 http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-riscpc/kernel-image-2.4.16-riscpc_20040204_arm.deb Size/MD5 checksum: 2910348 c4fab31d10a137738aeb722eb7358488 These files will probably be moved into the stable distribution on its next revision. - --------------------------------------------------------------------------------- For apt-get: deb http://security.debian.org/ stable/updates main For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main Mailing list: debian-security-announce@lists.debian.org Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFAM24FW5ql+IAeqTIRAnfGAKCL/DNBX0AbM1Z3FQAgydBWG277ogCeInX7 n/gIgC3CKmo3hymySIFKXS4= =H3CA -----END PGP SIGNATURE-----
