SUSE Security Announcement SUSE-SA:2006:042 - A slew of kernel related vulnerabilities has been fixed in SUSE Linux for the 2.6 series.
4c8c22343a9c6f45ba441423e790535d6fa953e7a4733a9309a92d7c98856860
Ubuntu Security Notice 311-1 - A race condition was discovered in the do_add_counters() functions. Processes which do not run with full root privileges, but have the CAP_NET_ADMIN capability can exploit this to crash the machine or read a random piece of kernel memory. In Ubuntu there are no packages that are affected by this, so this can only be an issue for you if you use third-party software that uses Linux capabilities. John Stultz discovered a faulty BUG_ON trigger in the handling of POSIX timers. A local attacker could exploit this to trigger a kernel oops and crash the machine. Dave Jones discovered that the PowerPC kernel did not perform certain required access_ok() checks. A local user could exploit this to read arbitrary kernel memory and crash the kernel on 64-bit systems, and possibly read arbitrary kernel memory on 32-bit systems. A design flaw was discovered in the prctl(PR_SET_DUMPABLE, ...) system call, which allowed a local user to have core dumps created in a directory he could not normally write to. This could be exploited to drain available disk space on system partitions, or, under some circumstances, to execute arbitrary code with full root privileges. This flaw only affects Ubuntu 6.06 LTS.
7561e7fc801390c8838f1fe27efaf5483ef09bccc24d1fcccab73c2e3b1b9963
In previous kernel 2.6 versions, systems that use the SCTP protocol are vulnerable to remote denial of service attacks including remotely-triggered kernel crashes, and all systems are vulnerable to local denial of service including locally-triggered kernel hangs.
0a184d8c9cd14cdfc29f7f2d78a66c38915f67721aee3a75be265bfc14048501