CVE-2016-2085

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory kernel.org Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-2949-1 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1324867
https://security-tracker.debian.org/tracker/CVE-2016-2085
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1 vendor advisory
http://www.ubuntu.com/usn/USN-2947-3 vendor advisory
http://www.ubuntu.com/usn/USN-2947-2 vendor advisory
https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2085.html
http://www.ubuntu.com/usn/USN-2947-1 vendor advisory
http://www.ubuntu.com/usn/USN-2946-2 vendor advisory
https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1 patch vendor advisory
http://www.ubuntu.com/usn/USN-2948-1 vendor advisory
http://www.ubuntu.com/usn/USN-2946-1 vendor advisory
http://www.ubuntu.com/usn/USN-2948-2 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-2085?
CVE-2016-2085 has been scored as a medium severity vulnerability.
How to fix CVE-2016-2085?
To fix CVE-2016-2085, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2085 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2085 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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