USN-137-1: Linux kernel vulnerabilities
8 June 2005
Linux kernel vulnerabilities
Releases
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 versions:
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-2.6.10-5-amd64-xeon
-
-
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-k7
-
-
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-2.6.8.1-5-k7
-
-
linux-image-2.6.10-5-k7-smp
-
-
linux-image-2.6.10-5-amd64-generic
-
-
linux-image-2.6.10-5-686-smp
-
-
linux-image-2.6.8.1-5-386
-
-
linux-image-2.6.10-5-686
-
-
linux-image-2.6.8.1-5-amd64-k8
-
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-2.6.10-5-amd64-xeon
-
-
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-k7
-
-
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-2.6.8.1-5-k7
-
-
linux-image-2.6.10-5-k7-smp
-
-
linux-image-2.6.10-5-amd64-generic
-
-
linux-image-2.6.10-5-686-smp
-
-
linux-image-2.6.8.1-5-386
-
-
linux-image-2.6.10-5-686
-
-
linux-image-2.6.8.1-5-amd64-k8
-
In general, a standard system update will make all the necessary changes.