Ubuntu Security Notice 1202-1 - Dan Rosenberg discovered that several network ioctls did not clear kernel memory correctly. A local user could exploit this to read kernel stack memory, leading to a loss of privacy. Brad Spengler discovered that stack memory for new a process was not correctly calculated. A local attacker could exploit this to crash the system, leading to a denial of service. Dan Rosenberg discovered that the Linux kernel TIPC implementation contained multiple integer signedness errors. A local attacker could exploit this to gain root privileges. Various other issues were also addressed.
b470551b1de773c77d363adf5b0cb1910cc8654d0405c8a191ad8f00fd5d2535Ubuntu Security Notice 1164-1 - Thomas Pollet discovered that the RDS network protocol did not check certain iovec buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user. Dan Rosenberg discovered that the CAN protocol on 64bit systems did not correctly calculate the size of certain buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user. Various other issues were also addressed.
4e4395012a3efacb0412aff2ad1192af5495aeffbe292f807d0de267e1af68f2Ubuntu Security Notice 1073-1 - Multiple vulnerabilities have been discovered and addressed in the Linux kernel. Gleb Napatov discovered that KVM did not correctly check certain privileged operations. Dan Jacobson discovered that ThinkPad video output was not correctly access controlled. Vasiliy Kulikov discovered that the Linux kernel X.25 implementation did not correctly clear kernel memory. Nelson Elhage discovered that the Linux kernel IPv4 implementation did not properly audit certain bytecodes in netlink messages. Dan Rosenberg discovered that the USB subsystem did not correctly initialize certain structures. Various other issues have also been addressed.
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