Ubuntu Security Notice USN-137-1
8th June, 2005
linux-source-2.6.10, linux-source-2.6.8.1 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 5.04
- Ubuntu 4.10
Details
Alexander Nyberg discovered that ptrace() insufficiently validated
addresses on the amd64 platform so that it was possible to set an
invalid segment base. A local attacker could exploit this to crash the
kernel. This does not affect the i386 and powerpc platforms in any
way. (CAN-2005-0756)
Chris Wright discovered that the mmap() function could create illegal
memory maps (using the "mmap" function) with the start address
pointing beyond the end address. A local user could exploit this to
crash the kernel or possibly even execute arbitrary code with kernel
privileges. (CAN-2005-1265)
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 5.04:
- linux-patch-ubuntu-2.6.10
- linux-image-2.6.8.1-5-powerpc-smp
- linux-image-2.6.8.1-5-power4-smp
- linux-image-2.6.10-5-386
- linux-image-2.6.10-5-itanium-smp
- linux-image-2.6.10-5-power4
- linux-image-2.6.10-5-amd64-k8
- linux-image-2.6.8.1-5-k7
- linux-image-2.6.10-5-mckinley-smp
- linux-image-2.6.10-5-power4-smp
- linux-image-2.6.8.1-5-amd64-generic
- linux-image-2.6.10-5-amd64-k8-smp
- linux-image-2.6.8.1-5-k7-smp
- linux-image-2.6.8.1-5-power3-smp
- linux-image-2.6.8.1-5-amd64-xeon
- linux-image-2.6.10-5-powerpc-smp
- linux-image-2.6.8.1-5-power3
- linux-image-2.6.8.1-5-power4
- linux-image-2.6.8.1-5-powerpc
- linux-image-2.6.10-5-mckinley
- linux-image-2.6.10-5-itanium
- linux-image-2.6.10-5-power3-smp
- linux-image-2.6.10-5-686-smp
- linux-image-2.6.10-5-power3
- linux-image-2.6.8.1-5-amd64-k8-smp
- linux-image-2.6.8.1-5-686
- linux-image-2.6.8.1-5-686-smp
- linux-patch-debian-2.6.8.1
- linux-image-2.6.10-5-powerpc
- linux-image-2.6.10-5-amd64-xeon
- linux-image-2.6.10-5-k7-smp
- linux-image-2.6.10-5-amd64-generic
- linux-image-2.6.10-5-k7
- linux-image-2.6.8.1-5-amd64-k8
- linux-image-2.6.10-5-686
- linux-image-2.6.8.1-5-386
- Ubuntu 4.10:
- linux-patch-ubuntu-2.6.10
- linux-image-2.6.8.1-5-powerpc-smp
- linux-image-2.6.8.1-5-power4-smp
- linux-image-2.6.10-5-386
- linux-image-2.6.10-5-itanium-smp
- linux-image-2.6.10-5-power4
- linux-image-2.6.10-5-amd64-k8
- linux-image-2.6.8.1-5-k7
- linux-image-2.6.10-5-mckinley-smp
- linux-image-2.6.10-5-power4-smp
- linux-image-2.6.8.1-5-amd64-generic
- linux-image-2.6.10-5-amd64-k8-smp
- linux-image-2.6.8.1-5-k7-smp
- linux-image-2.6.8.1-5-power3-smp
- linux-image-2.6.8.1-5-amd64-xeon
- linux-image-2.6.10-5-powerpc-smp
- linux-image-2.6.8.1-5-power3
- linux-image-2.6.8.1-5-power4
- linux-image-2.6.8.1-5-powerpc
- linux-image-2.6.10-5-mckinley
- linux-image-2.6.10-5-itanium
- linux-image-2.6.10-5-power3-smp
- linux-image-2.6.10-5-686-smp
- linux-image-2.6.10-5-power3
- linux-image-2.6.8.1-5-amd64-k8-smp
- linux-image-2.6.8.1-5-686
- linux-image-2.6.8.1-5-686-smp
- linux-patch-debian-2.6.8.1
- linux-image-2.6.10-5-powerpc
- linux-image-2.6.10-5-amd64-xeon
- linux-image-2.6.10-5-k7-smp
- linux-image-2.6.10-5-amd64-generic
- linux-image-2.6.10-5-k7
- linux-image-2.6.8.1-5-amd64-k8
- linux-image-2.6.10-5-686
- linux-image-2.6.8.1-5-386
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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