USN-3099-2 Linux kernel vulnerabilities
USN-3099-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS.
Vladimír Beneš discovered an unbounded recursion in the VLAN and TEB Generic Receive Offload (GRO) processing implementations in the Linux kernel. A remote attacker could use this to cause a stack corruption, leading to a denial of service (system crash). (CVE-2016-7039)
Marco Grassi discovered a use-after-free condition could occur in the TCP retransmit queue handling code in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-6828)
Pengfei Wang discovered a race condition in the Adaptec AAC RAID controller driver in the Linux kernel when handling ioctl()s. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-6480)
Severity is high unless otherwise noted.
Users of affected versions should apply the following mitigation:
Vladimír Beneš, Marco Grassi, Pengfei Wang