Ubuntu 4.10 / 5.04 : linux-source-2.6.10, linux-source-188.8.131.52 vulnerabilities (USN-187-1)
Low Nessus Plugin ID 20599
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionA Denial of Service vulnerability was detected in the stack segment fault handler. A local attacker could exploit this by causing stack fault exceptions under special circumstances (scheduling), which lead to a kernel crash. (CAN-2005-1767)
Vasiliy Averin discovered a Denial of Service vulnerability in the 'tiocgdev' ioctl call and in the 'routing_ioctl' function. By calling fget() and fput() in special ways, a local attacker could exploit this to destroy file descriptor structures and crash the kernel.
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected packages.