This Metasploit module exploits a missing check in the get_user and put_user API functions in the linux kernel before 3.5.5. The missing checks on these functions allow an unprivileged user to read and write kernel memory. This exploit first reads the kernel memory to identify the commit_creds and ptmx_fops address, then uses the write primitive to execute shellcode as uid 0. The exploit was first discovered in the wild in the vroot rooting application.
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Ubuntu Security Notice 2067-1 - A flaw was discovered in the Linux kernel's dm snapshot facility. A remote authenticated user could exploit this flaw to obtain sensitive information or modify/corrupt data. Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. Various other issues were also addressed.
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