Description
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.
References (13)
Core 13
Core References
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2949-1
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1324867
Third Party Advisory x_refsource_confirm
https://security-tracker.debian.org/tracker/CVE-2016-2085
Vendor Advisory x_refsource_confirm
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2947-3
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2947-2
Various Sources x_refsource_confirm
https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2085.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2947-1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2946-2
Patch, Vendor Advisory x_refsource_confirm
https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2948-1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2946-1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2948-2
Scores
CVSS v3
5.5
EPSS
0.0044
EPSS Percentile
36.4%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Details
CWE
CWE-19
Status
published
Products (1)
linux/linux_kernel
< 4.4.8
Published
Apr 27, 2016
Tracked Since
Feb 18, 2026