Vulnerability Details : CVE-2016-2085
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.
Products affected by CVE-2016-2085
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-2085
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-2085
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:P/A:N |
3.9
|
2.9
|
NIST | |
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2016-2085
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-2085
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http://www.ubuntu.com/usn/USN-2948-1
USN-2948-1: Linux kernel (Utopic HWE) vulnerabilities | Ubuntu security notices
-
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1
kernel/git/torvalds/linux.git - Linux kernel source treeVendor Advisory
-
http://www.ubuntu.com/usn/USN-2946-1
USN-2946-1: Linux kernel vulnerabilities | Ubuntu security notices
-
https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1
EVM: Use crypto_memneq() for digest comparisons · torvalds/linux@613317b · GitHubPatch;Vendor Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=1324867
1324867 – (CVE-2016-2085) CVE-2016-2085 kernel: timing side channel vulnerability in the Linux Extended Verification Module
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http://www.ubuntu.com/usn/USN-2949-1
USN-2949-1: Linux kernel (Vivid HWE) vulnerabilities | Ubuntu security notices
-
http://www.ubuntu.com/usn/USN-2947-3
USN-2947-3: Linux kernel (Raspberry Pi 2) vulnerabilities | Ubuntu security notices
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https://security-tracker.debian.org/tracker/CVE-2016-2085
CVE-2016-2085
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https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2085.html
CVE-2016-2085 in Ubuntu
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http://www.ubuntu.com/usn/USN-2947-2
USN-2947-2: Linux kernel (Wily HWE) vulnerabilities | Ubuntu security notices
-
http://www.ubuntu.com/usn/USN-2946-2
USN-2946-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security notices
-
http://www.ubuntu.com/usn/USN-2947-1
USN-2947-1: Linux kernel vulnerabilities | Ubuntu security notices
-
http://www.ubuntu.com/usn/USN-2948-2
USN-2948-2: Linux kernel (Utopic HWE) regression | Ubuntu security notices
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