USN-508-1: Linux kernel vulnerabilities

Ubuntu Security Notice USN-508-1

30th August, 2007

linux-source-2.6.15 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 6.06 LTS

Software description

  • linux-source-2.6.15

Details

A buffer overflow was discovered in the Moxa serial driver. Local
attackers could execute arbitrary code and gain root privileges.
(CVE-2005-0504)

A flaw was discovered in the IPv6 stack's handling of type 0 route headers.
By sending a specially crafted IPv6 packet, a remote attacker could cause
a denial of service between two IPv6 hosts. (CVE-2007-2242)

A flaw in the sysfs_readdir function allowed a local user to cause a
denial of service by dereferencing a NULL pointer. (CVE-2007-3104)

A buffer overflow was discovered in the random number generator. In
environments with granular assignment of root privileges, a local attacker
could gain additional privileges. (CVE-2007-3105)

It was discovered that certain setuid-root processes did not correctly
reset process death signal handlers. A local user could manipulate this
to send signals to processes they would not normally have access to.
(CVE-2007-3848)

It was discovered that the aacraid SCSI driver did not correctly check
permissions on certain ioctls. A local attacker could cause a denial
of service or gain privileges. (CVE-2007-4308)

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 6.06 LTS:
linux-image-2.6.15-29-amd64-xeon 2.6.15-29.58
linux-image-2.6.15-29-hppa32-smp 2.6.15-29.58
linux-image-2.6.15-29-server-bigiron 2.6.15-29.58
linux-image-2.6.15-29-386 2.6.15-29.58
linux-image-2.6.15-29-686 2.6.15-29.58
linux-image-2.6.15-29-powerpc 2.6.15-29.58
linux-image-2.6.15-29-sparc64 2.6.15-29.58
linux-image-2.6.15-29-amd64-k8 2.6.15-29.58
linux-image-2.6.15-29-hppa32 2.6.15-29.58
linux-image-2.6.15-29-k7 2.6.15-29.58
linux-image-2.6.15-29-hppa64-smp 2.6.15-29.58
linux-image-2.6.15-29-mckinley-smp 2.6.15-29.58
linux-image-2.6.15-29-amd64-generic 2.6.15-29.58
linux-image-2.6.15-29-itanium-smp 2.6.15-29.58
linux-image-2.6.15-29-amd64-server 2.6.15-29.58
linux-image-2.6.15-29-itanium 2.6.15-29.58
linux-image-2.6.15-29-powerpc-smp 2.6.15-29.58
linux-image-2.6.15-29-powerpc64-smp 2.6.15-29.58
linux-image-2.6.15-29-server 2.6.15-29.58
linux-image-2.6.15-29-mckinley 2.6.15-29.58
linux-image-2.6.15-29-hppa64 2.6.15-29.58
linux-image-2.6.15-29-sparc64-smp 2.6.15-29.58

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system upgrade you need to reboot your computer to
effect the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-386,
linux-powerpc, linux-amd64-generic), a standard system upgrade will
automatically perform this as well.

References

CVE-2005-0504, CVE-2007-2242, CVE-2007-3104, CVE-2007-3105, CVE-2007-3848, CVE-2007-4308