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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2004.0242 -- Debian Security Advisory DSA 470-1 New Linux 2.4.17 packages fix several local root exploits (hppa) 02 April 2004 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: mips kernel 2.4.19 Publisher: Debian Operating System: Debian GNU/Linux 3.0 Linux Impact: Root Compromise Access Required: Existing Account CVE Names: CAN-2003-0961 CAN-2003-0985 CAN-2004-0077 Ref: AU-2004.006 ESB-2004.0224 ESB-2004.0170 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - -------------------------------------------------------------------------- Debian Security Advisory DSA 470-1 security@debian.org http://www.debian.org/security/ Martin Schulze April 1st, 2004 http://www.debian.org/security/faq - - -------------------------------------------------------------------------- Package : kernel-image-2.4.17-hppa 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 mips kernel 2.4.19 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) these problems have been fixed in version 32.3 of kernel-image-2.4.17-hppa. For the unstable distribution (sid) these problems have been fixed in version 2.4.25-1 of kernel-image-2.4.25-hppa. 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-image-2.4.17-hppa/kernel-image-2.4.17-hppa_32.3.dsc Size/MD5 checksum: 713 f5b7956a75870aaff51ccb52c96a0ab2 http://security.debian.org/pool/updates/main/k/kernel-image-2.4.17-hppa/kernel-image-2.4.17-hppa_32.3.tar.gz Size/MD5 checksum: 29958048 44cb813807b9b1c45984fadfc18d4ba1 Architecture independent components: http://security.debian.org/pool/updates/main/k/kernel-image-2.4.17-hppa/kernel-source-2.4.17-hppa_32.3_all.deb Size/MD5 checksum: 24109698 cefc1a3ebfce0d30f97b556ed62674d4 HP Precision architecture: http://security.debian.org/pool/updates/main/k/kernel-image-2.4.17-hppa/kernel-headers-2.4.17-hppa_32.3_hppa.deb Size/MD5 checksum: 3531296 605f593d9648fd2ab1aa2d6f106263af http://security.debian.org/pool/updates/main/k/kernel-image-2.4.17-hppa/kernel-image-2.4.17-32_32.3_hppa.deb Size/MD5 checksum: 2737992 793396152e7dea3f9a1ea8ea10c4dbe7 http://security.debian.org/pool/updates/main/k/kernel-image-2.4.17-hppa/kernel-image-2.4.17-32-smp_32.3_hppa.deb Size/MD5 checksum: 2870174 2f2df476a902378a9efa96a79367eed2 http://security.debian.org/pool/updates/main/k/kernel-image-2.4.17-hppa/kernel-image-2.4.17-64_32.3_hppa.deb Size/MD5 checksum: 3024282 1a687ccbedbba298a7e98ba7d2b20650 http://security.debian.org/pool/updates/main/k/kernel-image-2.4.17-hppa/kernel-image-2.4.17-64-smp_32.3_hppa.deb Size/MD5 checksum: 3165702 795b734b1e17a75a76c40af8f49e6ec7 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) iD8DBQFAbDzxW5ql+IAeqTIRAkGYAJ0T4ycYceqnSp1P5zvElT9jsXpW0ACgoBMX ekopsdUvlccu2maqF7C0TXs= =3m0l - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBQGy3bih9+71yA2DNAQIKUQQAgRV35VQghKM1H8RisOQnLJzMttXq7ZZZ z0nN4+sauLQrOsKPxa+TU2VRfswFtvt3SNYTvtCdP0zx5H3A/TIvUAiuuIIdS9n1 fpC/6YHAq3gEuPnzRptVo9vfvnTQ5z/iaiF3ZHbKsG6JhrUt7BKWWNBDHiP53u/e q2++V2V+nkI= =vpC8 -----END PGP SIGNATURE-----