PT-2016-5009 · Linux+2 · Linux Kernel+2

Xiaofei Rex Guo · Published 2016-02-15 · Updated 2016-12-03 · CVE-2016-2085

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.5

Description The issue concerns a timing side-channel attack that allows local users to forge MAC values. This is due to the evm verify hmac function in security/integrity/evm/evm main.c not properly copying data.

Recommendations For versions prior to 4.5, update to version 4.5 or later to resolve the issue.

Fix

Weakness Enumeration

CWE-19

Related Identifiers

ALT-PU-2016-1262

ALT-PU-2016-1485

CVE-2016-2085

MGASA-2016-0225

MGASA-2016-0232

MGASA-2016-0233

USN-2946-1

USN-2946-2

USN-2947-1

USN-2947-2

USN-2947-3

USN-2948-1

USN-2948-2

USN-2949-1

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 66

• https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-7833 · Vendor Advisory
• https://osv.dev/vulnerability/USN-2947-2 · Vendor Advisory
• http://ubuntu.com/usn/USN-2947-2 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2947-2 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2946-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2383 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2949-1 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2016-0232.html · Security Note
• https://ubuntu.com/security/notices/USN-2948-2 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2016-0233 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-2085 · Security Note
• https://ubuntu.com/security/CVE-2016-2085 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2782 · Vendor Advisory