[USN-3170-1] Linux kernel vulnerabilities

Severity High

CVEs 2

Several security issues were fixed in the kernel.

Dmitry Vyukov discovered that the KVM implementation in the Linux kernel
did not properly initialize the Code Segment (CS) in certain error cases. A
local attacker could use this to expose sensitive information (kernel
memory). (CVE-2016-9756)

Andrey Konovalov discovered that signed integer overflows existed in the
setsockopt() system call when handling the SO_SNDBUFFORCE and
SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability
could use this to cause a denial of service (system crash or memory
corruption). (CVE-2016-9793)

ID

USN-3170-1

Severity

high

Severity from

CVE-2016-9793

URL

https://ubuntu.com/security/notices/USN-3170-1

Published