Debian Security Advisory

DSA-427-1 linux-kernel-2.4.17-mips+mipsel -- missing boundary check

Date Reported:
19 Jan 2004
Affected Packages:
kernel-patch-2.4.17-mips
Vulnerable:
Yes
Security database references:
In the Bugtraq database (at SecurityFocus): BugTraq ID 9356.
In Mitre's CVE dictionary: CVE-2003-0985.
More information:

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.

For the stable distribution (woody) this problem has been fixed in version 2.4.17-0.020226.2.woody3 the mips and mipsel architectures.

For the unstable distribution (sid) this problem will be fixed soon with newly uploaded packages.

We recommend that you upgrade your kernel packages. This problem has been fixed in the upstream version 2.4.24 as well.

Fixed in:

Debian GNU/Linux 3.0 (woody)

Source:
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-patch-2.4.17-mips_2.4.17-0.020226.2.woody3.dsc
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-patch-2.4.17-mips_2.4.17-0.020226.2.woody3.tar.gz
Architecture-independent component:
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-patch-2.4.17-mips_2.4.17-0.020226.2.woody3_all.deb
Big endian MIPS:
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-headers-2.4.17_2.4.17-0.020226.2.woody3_mips.deb
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-image-2.4.17-r4k-ip22_2.4.17-0.020226.2.woody3_mips.deb
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-image-2.4.17-r5k-ip22_2.4.17-0.020226.2.woody3_mips.deb
Little endian MIPS:
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-headers-2.4.17_2.4.17-0.020226.2.woody3_mipsel.deb
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-image-2.4.17-r3k-kn02_2.4.17-0.020226.2.woody3_mipsel.deb
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-image-2.4.17-r4k-kn04_2.4.17-0.020226.2.woody3_mipsel.deb
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/mips-tools_2.4.17-0.020226.2.woody3_mipsel.deb

MD5 checksums of the listed files are available in the original advisory.