Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2004.0170 -- Debian Security Advisory DSA 450-1
New Linux 2.4.19 packages fix several local root exploits (mips)
01 March 2004
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AusCERT Security Bulletin Summary
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Product: kernel-source-2.4.19
kernel-patch-2.4.19-mips
Publisher: Debian
Operating System: Debian GNU/Linux 3.0
Linux
Platform: MIPS
Impact: Root Compromise
Access Required: Existing Account
CVE Names: CAN-2003-0961 CAN-2003-0985 CAN-2004-0077
Ref: ESB-2004.0152
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Debian Security Advisory DSA 450-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
February 27th, 2004 http://www.debian.org/security/faq
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Package : kernel-source-2.4.19, kernel-patch-2.4.19-mips
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 2.4.19-0.020911.1.woody3 of mips images and version
2.4.19-4.woody1 of kernel source.
For the unstable distribution (sid) this problem will be fixed soon
with the next upload of a 2.4.19 kernel image and in version
2.4.22-0.030928.3 for 2.4.22.
We recommend that you upgrade your Linux kernel packages immediately.
Upgrade Instructions
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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
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Source archives:
http://security.debian.org/pool/updates/main/k/kernel-source-2.4.19/kernel-source-2.4.19_2.4.19-4.woody1.dsc
Size/MD5 checksum: 672 7bbdd141827b2a7c6e5d3dc0ec1419aa
http://security.debian.org/pool/updates/main/k/kernel-source-2.4.19/kernel-source-2.4.19_2.4.19-4.woody1.diff.gz
Size/MD5 checksum: 40736 2a4fa2f28b3af1ba4247255cf1cab05d
http://security.debian.org/pool/updates/main/k/kernel-source-2.4.19/kernel-source-2.4.19_2.4.19.orig.tar.gz
Size/MD5 checksum: 32000211 237896fbb45ae652cc9c5cecc9b746da
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.19-mips/kernel-patch-2.4.19-mips_2.4.19-0.020911.1.woody3.dsc
Size/MD5 checksum: 792 767aee163c5c3fccbddf1f917d06488c
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.19-mips/kernel-patch-2.4.19-mips_2.4.19-0.020911.1.woody3.tar.gz
Size/MD5 checksum: 1020287 80c1f72a99eaf113161c589ec49b06f6
Architecture independent components:
http://security.debian.org/pool/updates/main/k/kernel-source-2.4.19/kernel-doc-2.4.19_2.4.19-4.woody1_all.deb
Size/MD5 checksum: 1782662 b8ade5f98fcb9f3a5627d688467eddcb
http://security.debian.org/pool/updates/main/k/kernel-source-2.4.19/kernel-source-2.4.19_2.4.19-4.woody1_all.deb
Size/MD5 checksum: 25892640 b22804d26e298f7f02e51d48d31da2dc
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.19-mips/kernel-patch-2.4.19-mips_2.4.19-0.020911.1.woody3_all.deb
Size/MD5 checksum: 1020394 ba072ba9f904251c7327ccbeedaa8f20
Big endian MIPS architecture:
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.19-mips/kernel-headers-2.4.19_2.4.19-0.020911.1.woody3_mips.deb
Size/MD5 checksum: 3918150 d1d65ee7cfabcf71efc5d06ac78f6319
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.19-mips/kernel-image-2.4.19-r4k-ip22_2.4.19-0.020911.1.woody3_mips.deb
Size/MD5 checksum: 2075108 8f41b6344fe92ba16e69a623c8e3a9b7
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.19-mips/kernel-image-2.4.19-r5k-ip22_2.4.19-0.020911.1.woody3_mips.deb
Size/MD5 checksum: 2075486 e53315d4e51e49d809e83191d945a4f8
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.19-mips/mips-tools_2.4.19-0.020911.1.woody3_mips.deb
Size/MD5 checksum: 12842 b65ca394f3fe542c68787794ee5a4337
These files will probably be moved into the stable distribution on
its next revision.
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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>
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