Debian 5.0 DSA-1800-1 Critical: DoS, Escalation, and Memory Leak

Several vulnerabilities have been discovered in the Linux kernel that
may lead to a denial of service, privilege escalation or a sensitive
memory leak. The Common Vulnerabilities and Exposures project
identifies the following problems:

CVE-2009-0028

Chris Evans discovered a situation in which a child process can
send an arbitrary signal to its parent.

CVE-2009-0834

Roland McGrath discovered an issue on amd64 kernels that allows
local users to circumvent system call audit configurations which
filter based on the syscall numbers or argument details.

CVE-2009-0835

Roland McGrath discovered an issue on amd64 kernels with
CONFIG_SECCOMP enabled. By making a specially crafted syscall,
local users can bypass access restrictions.

CVE-2009-0859

Jiri Olsa discovered that a local user can cause a denial of
service (system hang) using a SHM_INFO shmctl call on kernels
compiled with CONFIG_SHMEM disabled. This issue does not affect
prebuilt Debian kernels.

CVE-2009-1046

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