USN-509-1: Linux kernel vulnerabilities

Releases

• Ubuntu 6.10

Packages

• linux-source-2.6.17 -

Details

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)

A flaw was discovered in the usblcd driver. A local attacker could cause
large amounts of kernel memory consumption, leading to a denial of service.
(CVE-2007-3513)

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)

The Direct Rendering Manager for the i915 driver could be made to write
to arbitrary memory locations. An attacker with access to a running X11
session could send a specially crafted buffer and gain root privileges.
(CVE-2007-3851)

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 versions:

Ubuntu 6.10

• linux-image-2.6.17-12-mckinley - 2.6.17.1-12.40
• linux-image-2.6.17-12-powerpc64-smp - 2.6.17.1-12.40
• linux-image-2.6.17-12-hppa32 - 2.6.17.1-12.40
• linux-image-2.6.17-12-hppa64 - 2.6.17.1-12.40
• linux-image-2.6.17-12-sparc64-smp - 2.6.17.1-12.40
• linux-image-2.6.17-12-generic - 2.6.17.1-12.40
• linux-image-2.6.17-12-powerpc-smp - 2.6.17.1-12.40
• linux-image-2.6.17-12-386 - 2.6.17.1-12.40
• linux-image-2.6.17-12-server-bigiron - 2.6.17.1-12.40
• linux-image-2.6.17-12-itanium - 2.6.17.1-12.40
• linux-image-2.6.17-12-powerpc - 2.6.17.1-12.40
• linux-image-2.6.17-12-sparc64 - 2.6.17.1-12.40
• linux-image-2.6.17-12-server - 2.6.17.1-12.40

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

References

• CVE-2007-3104
• CVE-2007-3105
• CVE-2007-3513
• CVE-2007-3848
• CVE-2007-3851
• CVE-2007-4308

Related notices

• USN-510-1: linux-image-2.6.20-16-hppa32, linux-image-2.6.20-16-server-bigiron, linux-image-2.6.20-16-hppa64, linux-image-2.6.20-16-sparc64, linux-image-2.6.20-16-mckinley, linux-image-2.6.20-16-powerpc64-smp, linux-source-2.6.20, linux-image-2.6.20-16-powerpc, linux-image-2.6.20-16-server, linux-image-2.6.20-16-lowlatency, linux-image-2.6.20-16-powerpc-smp, linux-image-2.6.20-16-sparc64-smp, linux-image-2.6.20-16-386, linux-image-2.6.20-16-generic, linux-image-2.6.20-16-itanium
• USN-508-1: linux-image-2.6.15-29-mckinley, linux-image-2.6.15-29-itanium-smp, linux-image-2.6.15-29-amd64-server, linux-image-2.6.15-29-hppa64, linux-image-2.6.15-29-powerpc, linux-image-2.6.15-29-amd64-k8, linux-image-2.6.15-29-server-bigiron, linux-image-2.6.15-29-686, linux-source-2.6.15, linux-image-2.6.15-29-itanium, linux-image-2.6.15-29-sparc64, linux-image-2.6.15-29-hppa32, linux-image-2.6.15-29-hppa64-smp, linux-image-2.6.15-29-powerpc-smp, linux-image-2.6.15-29-server, linux-image-2.6.15-29-k7, linux-image-2.6.15-29-amd64-xeon, linux-image-2.6.15-29-sparc64-smp, linux-image-2.6.15-29-386, linux-image-2.6.15-29-powerpc64-smp, linux-image-2.6.15-29-amd64-generic, linux-image-2.6.15-29-hppa32-smp, linux-image-2.6.15-29-mckinley-smp
• USN-489-1: linux-image-2.6.15-28-server-bigiron, linux-image-2.6.15-28-amd64-k8, linux-image-2.6.15-28-sparc64, linux-image-2.6.15-28-sparc64-smp, linux-image-2.6.15-28-amd64-server, linux-image-2.6.15-28-amd64-generic, linux-image-2.6.15-28-server, linux-image-2.6.15-28-686, linux-image-2.6.15-28-k7, linux-image-2.6.15-28-powerpc, linux-image-2.6.15-28-mckinley, linux-image-2.6.15-28-mckinley-smp, linux-image-2.6.15-28-386, linux-image-2.6.15-28-powerpc64-smp, linux-image-2.6.15-28-powerpc-smp, linux-image-2.6.15-28-amd64-xeon