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CVE-2016-2085

Published: 15 February 2016

The evm_verify_hmac function in security/integrity/evm/evm_main.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack.

From the Ubuntu security team

Xiaofei Rex Guo discovered a timing side channel vulnerability in the Linux Extended Verification Module (EVM). An attacker could use this to affect system integrity.

Priority

Low

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
Patches:
Introduced by 15647eb3985ef30dfd657038924dc85c03026733
Fixed by 613317bd212c585c20796c10afe5daaa95d4b0a1
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc4)