DSA-1111-2 kernel-source-2.6.8 -- race condition

Debian Security Advisory

DSA-1111-2 kernel-source-2.6.8 -- race condition

Date Reported:

26 Jul 2006

Affected Packages:

kernel-source-2.6.8

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2006-3626.

More information:

It was discovered that a race condition in the process filesystem can lead to privilege escalation.

The following matrix explains which kernel version for which architecture fixes the problem mentioned above:

	Debian 3.1 (sarge)
Source	2.6.8-16sarge4
Alpha architecture	2.6.8-16sarge4
AMD64 architecture	2.6.8-16sarge4
Intel IA-32 architecture	2.6.8-16sarge4
Intel IA-64 architecture	2.6.8-14sarge4
PowerPC architecture	2.6.8-12sarge4
Sun Sparc architecture	2.6.8-15sarge4
IBM S/390	2.6.8-5sarge4
Motorola 680x0	2.6.8-4sarge4
HP Precision	2.6.8-6sarge3
FAI	1.9.1sarge3

The initial advisory lacked builds for the IBM S/390, Motorola 680x0 and HP Precision architectures, which are now provided. Also, the kernels for the FAI installer have been updated.

We recommend that you upgrade your kernel package immediately and reboot the machine. If you have built a custom kernel from the kernel source package, you will need to rebuild to take advantage of these fixes.

Fixed in:

Debian GNU/Linux 3.1 (sarge)

Source:

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-alpha/kernel-image-2.6.8-alpha_2.6.8-16sarge4.dsc

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-alpha/kernel-image-2.6.8-alpha_2.6.8-16sarge4.tar.gz

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-amd64_2.6.8-16sarge4.dsc

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-amd64_2.6.8-16sarge4.tar.gz

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-image-2.6.8-ia64_2.6.8-14sarge4.dsc

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-image-2.6.8-ia64_2.6.8-14sarge4.tar.gz

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-image-2.6.8-i386_2.6.8-16sarge4.dsc

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-image-2.6.8-i386_2.6.8-16sarge4.tar.gz

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-sparc/kernel-image-2.6.8-sparc_2.6.8-15sarge4.dsc

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-sparc/kernel-image-2.6.8-sparc_2.6.8-15sarge4.tar.gz

http://security.debian.org/pool/updates/main/k/kernel-source-2.6.8/kernel-source-2.6.8_2.6.8-16sarge4.dsc

http://security.debian.org/pool/updates/main/k/kernel-source-2.6.8/kernel-source-2.6.8_2.6.8-16sarge4.diff.gz

http://security.debian.org/pool/updates/main/k/kernel-source-2.6.8/kernel-source-2.6.8_2.6.8.orig.tar.gz

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-patch-powerpc-2.6.8_2.6.8-12sarge4.dsc

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-patch-powerpc-2.6.8_2.6.8-12sarge4.tar.gz

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-hppa/kernel-image-2.6.8-hppa_2.6.8-6sarge3.dsc

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-hppa/kernel-image-2.6.8-hppa_2.6.8-6sarge3.tar.gz

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-s390/kernel-image-2.6.8-s390_2.6.8-5sarge4.dsc

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-s390/kernel-image-2.6.8-s390_2.6.8-5sarge4.tar.gz

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-amd64_2.6.8-16sarge4.dsc

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-amd64_2.6.8-16sarge4.tar.gz

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-m68k/kernel-image-2.6.8-m68k_2.6.8-4sarge4.dsc

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-m68k/kernel-image-2.6.8-m68k_2.6.8-4sarge4.tar.gz

http://security.debian.org/pool/updates/main/f/fai-kernels/fai-kernels_1.9.1sarge3.dsc

http://security.debian.org/pool/updates/main/f/fai-kernels/fai-kernels_1.9.1sarge3.tar.gz

Architecture-independent component:

http://security.debian.org/pool/updates/main/k/kernel-source-2.6.8/kernel-doc-2.6.8_2.6.8-16sarge4_all.deb

http://security.debian.org/pool/updates/main/k/kernel-source-2.6.8/kernel-patch-debian-2.6.8_2.6.8-16sarge4_all.deb

http://security.debian.org/pool/updates/main/k/kernel-source-2.6.8/kernel-source-2.6.8_2.6.8-16sarge4_all.deb

http://security.debian.org/pool/updates/main/k/kernel-source-2.6.8/kernel-tree-2.6.8_2.6.8-16sarge4_all.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-s390/kernel-patch-2.6.8-s390_2.6.8-5sarge4_all.deb

Alpha:

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-alpha/kernel-headers-2.6.8-3_2.6.8-16sarge4_alpha.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-alpha/kernel-headers-2.6.8-3-generic_2.6.8-16sarge4_alpha.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-alpha/kernel-headers-2.6.8-3-smp_2.6.8-16sarge4_alpha.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-alpha/kernel-image-2.6.8-3-generic_2.6.8-16sarge4_alpha.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-alpha/kernel-image-2.6.8-3-smp_2.6.8-16sarge4_alpha.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12-amd64-generic_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12-amd64-k8_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12-amd64-k8-smp_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12-em64t-p4_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12-em64t-p4-smp_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-12-amd64-generic_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-12-amd64-k8_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-12-amd64-k8-smp_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-12-em64t-p4_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-12-em64t-p4-smp_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-headers-2.6.8-3_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-headers-2.6.8-3-386_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-headers-2.6.8-3-686_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-headers-2.6.8-3-686-smp_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-headers-2.6.8-3-k7_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-headers-2.6.8-3-k7-smp_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-image-2.6.8-3-386_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-image-2.6.8-3-686_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-image-2.6.8-3-686-smp_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-image-2.6.8-3-k7_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-i386/kernel-image-2.6.8-3-k7-smp_2.6.8-16sarge4_i386.deb

http://security.debian.org/pool/updates/main/f/fai-kernels/fai-kernels_1.9.1sarge3_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-headers-2.6-itanium_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-headers-2.6-itanium-smp_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-headers-2.6-mckinley_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-headers-2.6-mckinley-smp_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-headers-2.6.8-3_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-headers-2.6.8-3-itanium_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-headers-2.6.8-3-itanium-smp_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-headers-2.6.8-3-mckinley_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-headers-2.6.8-3-mckinley-smp_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-image-2.6-itanium_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-image-2.6-itanium-smp_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-image-2.6-mckinley_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-image-2.6-mckinley-smp_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-image-2.6.8-3-itanium_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-image-2.6.8-3-itanium-smp_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-image-2.6.8-3-mckinley_2.6.8-14sarge4_ia64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-ia64/kernel-image-2.6.8-3-mckinley-smp_2.6.8-14sarge4_ia64.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-sparc/kernel-build-2.6.8-3_2.6.8-15sarge4_sparc.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-sparc/kernel-headers-2.6.8-3_2.6.8-15sarge4_sparc.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-sparc/kernel-headers-2.6.8-3-sparc32_2.6.8-15sarge4_sparc.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-sparc/kernel-headers-2.6.8-3-sparc64_2.6.8-15sarge4_sparc.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-sparc/kernel-headers-2.6.8-3-sparc64-smp_2.6.8-15sarge4_sparc.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-sparc/kernel-image-2.6.8-3-sparc32_2.6.8-15sarge4_sparc.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-sparc/kernel-image-2.6.8-3-sparc64_2.6.8-15sarge4_sparc.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-sparc/kernel-image-2.6.8-3-sparc64-smp_2.6.8-15sarge4_sparc.deb

PowerPC:

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-build-2.6.8-3-power3_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-build-2.6.8-3-power3-smp_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-build-2.6.8-3-power4_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-build-2.6.8-3-power4-smp_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-build-2.6.8-3-powerpc_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-build-2.6.8-3-powerpc-smp_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-headers-2.6.8-3_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-image-2.6.8-3-power3_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-image-2.6.8-3-power3-smp_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-image-2.6.8-3-power4_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-image-2.6.8-3-power4-smp_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-image-2.6.8-3-powerpc_2.6.8-12sarge4_powerpc.deb

http://security.debian.org/pool/updates/main/k/kernel-patch-powerpc-2.6.8/kernel-image-2.6.8-3-powerpc-smp_2.6.8-12sarge4_powerpc.deb

HPPA:

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-hppa/kernel-headers-2.6.8-3_2.6.8-6sarge3_hppa.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-hppa/kernel-headers-2.6.8-3-32_2.6.8-6sarge3_hppa.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-hppa/kernel-headers-2.6.8-3-32-smp_2.6.8-6sarge3_hppa.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-hppa/kernel-headers-2.6.8-3-64_2.6.8-6sarge3_hppa.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-hppa/kernel-headers-2.6.8-3-64-smp_2.6.8-6sarge3_hppa.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-hppa/kernel-image-2.6.8-3-32_2.6.8-6sarge3_hppa.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-hppa/kernel-image-2.6.8-3-32-smp_2.6.8-6sarge3_hppa.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-hppa/kernel-image-2.6.8-3-64_2.6.8-6sarge3_hppa.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-hppa/kernel-image-2.6.8-3-64-smp_2.6.8-6sarge3_hppa.deb

IBM S/390:

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-s390/kernel-headers-2.6.8-3_2.6.8-5sarge4_s390.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-s390/kernel-image-2.6.8-3-s390_2.6.8-5sarge4_s390.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-s390/kernel-image-2.6.8-3-s390-tape_2.6.8-5sarge4_s390.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-s390/kernel-image-2.6.8-3-s390x_2.6.8-5sarge4_s390.deb

AMD64:

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12_2.6.8-16sarge4_amd64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12-amd64-generic_2.6.8-16sarge4_amd64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12-amd64-k8_2.6.8-16sarge4_amd64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12-amd64-k8-smp_2.6.8-16sarge4_amd64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12-em64t-p4_2.6.8-16sarge4_amd64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-headers-2.6.8-12-em64t-p4-smp_2.6.8-16sarge4_amd64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-12-amd64-generic_2.6.8-16sarge4_amd64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-12-amd64-k8_2.6.8-16sarge4_amd64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-12-amd64-k8-smp_2.6.8-16sarge4_amd64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-12-em64t-p4_2.6.8-16sarge4_amd64.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-amd64/kernel-image-2.6.8-12-em64t-p4-smp_2.6.8-16sarge4_amd64.deb

Motorola 680x0:

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-m68k/kernel-image-2.6.8-amiga_2.6.8-4sarge4_m68k.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-m68k/kernel-image-2.6.8-atari_2.6.8-4sarge4_m68k.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-m68k/kernel-image-2.6.8-bvme6000_2.6.8-4sarge4_m68k.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-m68k/kernel-image-2.6.8-hp_2.6.8-4sarge4_m68k.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-m68k/kernel-image-2.6.8-mac_2.6.8-4sarge4_m68k.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-m68k/kernel-image-2.6.8-mvme147_2.6.8-4sarge4_m68k.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-m68k/kernel-image-2.6.8-mvme16x_2.6.8-4sarge4_m68k.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-m68k/kernel-image-2.6.8-q40_2.6.8-4sarge4_m68k.deb

http://security.debian.org/pool/updates/main/k/kernel-image-2.6.8-m68k/kernel-image-2.6.8-sun3_2.6.8-4sarge4_m68k.deb

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

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