USN-509-1: Linux kernel vulnerabilities

30 August 2007

Linux kernel vulnerabilities

Releases

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)