CVE-2016-2085
Linux kernel EVM HMAC Forgery
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.
INFO
Published Date :
April 27, 2016, 5:59 p.m.
Last Modified :
April 12, 2025, 10:46 a.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | LOW | [email protected] | ||||
| CVSS 3.0 | MEDIUM | [email protected] |
Solution
- Update the affected kernel packages.
- Reboot the system after updating.
Public PoC/Exploit Available at Github
CVE-2016-2085 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2016-2085.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-2085 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2016-2085
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Map Vulnerabilities into Different Layers of the Container Image
Python
None
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-2085 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-2085 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1 Added Reference http://www.ubuntu.com/usn/USN-2946-1 Added Reference http://www.ubuntu.com/usn/USN-2946-2 Added Reference http://www.ubuntu.com/usn/USN-2947-1 Added Reference http://www.ubuntu.com/usn/USN-2947-2 Added Reference http://www.ubuntu.com/usn/USN-2947-3 Added Reference http://www.ubuntu.com/usn/USN-2948-1 Added Reference http://www.ubuntu.com/usn/USN-2948-2 Added Reference http://www.ubuntu.com/usn/USN-2949-1 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1324867 Added Reference https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1 Added Reference https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2085.html Added Reference https://security-tracker.debian.org/tracker/CVE-2016-2085 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Dec. 03, 2016
Action Type Old Value New Value Added Reference http://www.ubuntu.com/usn/USN-2949-1 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2946-2 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2947-2 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2946-1 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2947-3 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2948-2 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2947-1 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2948-1 [No Types Assigned] -
Modified Analysis by [email protected]
May. 04, 2016
Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:o:linux:linux_kernel:4.4.8:*:*:*:*:*:*:* (and previous) Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1 No Types Assigned https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1 Advisory, Patch Changed Reference Type http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1 No Types Assigned http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1 Advisory Added CWE CWE-19 -
Initial Analysis by [email protected]
May. 03, 2016
Action Type Old Value New Value
Vulnerability Scoring Details
Base CVSS Score: 5.5
Base CVSS Score: 2.1
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.01%
score
0.22540
percentile