Ubuntu Security Notice 4419-1 - It was discovered that a race condition existed in the Precision Time Protocol implementation in the Linux kernel, leading to a use-after- free vulnerability. A local attacker could possibly use this to cause a denial of service or possibly execute arbitrary code. Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of service. Various other issues were also addressed.
4da1e70f72813a472a68df996a4ae3d56a0d2cc5f549bb57117ac1b67dbd4036Ubuntu Security Notice 4413-1 - Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of service. It was discovered that the SCSI generic driver in the Linux kernel did not properly handle certain error conditions correctly. A local privileged attacker could use this to cause a denial of service. Various other issues were also addressed.
7a63d1c745b27c7f807d07be0abf46a26c852cbe525f46d1aa4f51136fa76590Ubuntu Security Notice 4412-1 - Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of service. It was discovered that the SCSI generic driver in the Linux kernel did not properly handle certain error conditions correctly. A local privileged attacker could use this to cause a denial of service. Various other issues were also addressed.
4ff2368c3d486b4136ca213bbadd144700d05b48e79abfc439bdeeb2dc463585Ubuntu Security Notice 4411-1 - It was discovered that the elf handling code in the Linux kernel did not initialize memory before using it in certain situations. A local attacker could use this to possibly expose sensitive information. Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of service. Various other issues were also addressed.
77e9c423b2b22128a3f4021165dc16f0f69900cc8b3347190e6b8901fb3fdedeUbuntu Security Notice 4414-1 - It was discovered that the network block device implementation in the Linux kernel did not properly check for error conditions in some situations. An attacker could possibly use this to cause a denial of service. It was discovered that the btrfs file system implementation in the Linux kernel did not properly validate file system metadata in some situations. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service. Various other issues were also addressed.
ec1a7baec52bd131ecb393a55700b5d470ac7a5dd70696941fbd4f55b47787c4Debian Linux Security Advisory 4699-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.
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