CVE & CISA-KEV Catalog

CVE-2016-2085

MEDIUM
5.5
CVSS v3
NVD

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.

CWE-19

How to fix

Remediation Available
linuxDebian
Fixed in:4.4.2-1CVE-2016-2085
Fixed in:4.4.2-1CVE-2016-2085
Fixed in:4.4.2-1CVE-2016-2085
Fixed in:4.4.2-1CVE-2016-2085
linuxUbuntu
Fixed in:3.13.0-85.129USN-2946-1
linux-image-3.13.0-85-genericUbuntu
Fixed in:3.13.0-85.129USN-2946-1
linux-image-3.13.0-85-generic-lpaeUbuntu
Fixed in:3.13.0-85.129USN-2946-1
linux-image-3.13.0-85-lowlatencyUbuntu
Fixed in:3.13.0-85.129USN-2946-1
linux-image-3.13.0-85-powerpc-e500Ubuntu
Fixed in:3.13.0-85.129USN-2946-1
linux-image-3.13.0-85-powerpc-e500mcUbuntu
Fixed in:3.13.0-85.129USN-2946-1
linux-image-3.13.0-85-powerpc-smpUbuntu
Fixed in:3.13.0-85.129USN-2946-1
linux-image-3.13.0-85-powerpc64-embUbuntu
Fixed in:3.13.0-85.129USN-2946-1
linux-image-3.13.0-85-powerpc64-smpUbuntu
Fixed in:3.13.0-85.129USN-2946-1
linux-image-3.16.0-69-genericUbuntu
Fixed in:3.16.0-69.89~14.04.1USN-2948-1
linux-image-3.16.0-69-generic-lpaeUbuntu
Fixed in:3.16.0-69.89~14.04.1USN-2948-1
linux-image-3.16.0-69-lowlatencyUbuntu
Fixed in:3.16.0-69.89~14.04.1USN-2948-1
linux-image-3.16.0-69-powerpc-e500mcUbuntu
Fixed in:3.16.0-69.89~14.04.1USN-2948-1
linux-image-3.16.0-69-powerpc-smpUbuntu
Fixed in:3.16.0-69.89~14.04.1USN-2948-1
linux-image-3.16.0-69-powerpc64-embUbuntu
Fixed in:3.16.0-69.89~14.04.1USN-2948-1
linux-image-3.16.0-69-powerpc64-smpUbuntu
Fixed in:3.16.0-69.89~14.04.1USN-2948-1
linux-image-3.19.0-58-genericUbuntu
Fixed in:3.19.0-58.64~14.04.1USN-2949-1
linux-image-3.19.0-58-generic-lpaeUbuntu
Fixed in:3.19.0-58.64~14.04.1USN-2949-1
linux-image-3.19.0-58-lowlatencyUbuntu
Fixed in:3.19.0-58.64~14.04.1USN-2949-1
linux-image-3.19.0-58-powerpc-e500mcUbuntu
Fixed in:3.19.0-58.64~14.04.1USN-2949-1
linux-image-3.19.0-58-powerpc-smpUbuntu
Fixed in:3.19.0-58.64~14.04.1USN-2949-1
linux-image-3.19.0-58-powerpc64-embUbuntu
Fixed in:3.19.0-58.64~14.04.1USN-2949-1
linux-image-3.19.0-58-powerpc64-smpUbuntu
Fixed in:3.19.0-58.64~14.04.1USN-2949-1
linux-image-4.2.0-35-genericUbuntu
Fixed in:4.2.0-35.40~14.04.1USN-2947-2
linux-image-4.2.0-35-generic-lpaeUbuntu
Fixed in:4.2.0-35.40~14.04.1USN-2947-2
linux-image-4.2.0-35-lowlatencyUbuntu
Fixed in:4.2.0-35.40~14.04.1USN-2947-2
linux-image-4.2.0-35-powerpc-e500mcUbuntu
Fixed in:4.2.0-35.40~14.04.1USN-2947-2
linux-image-4.2.0-35-powerpc-smpUbuntu
Fixed in:4.2.0-35.40~14.04.1USN-2947-2
linux-image-4.2.0-35-powerpc64-embUbuntu
Fixed in:4.2.0-35.40~14.04.1USN-2947-2
linux-image-4.2.0-35-powerpc64-smpUbuntu
Fixed in:4.2.0-35.40~14.04.1USN-2947-2
linux-lts-utopicUbuntu
Fixed in:3.16.0-69.89~14.04.1USN-2948-1
linux-lts-vividUbuntu
Fixed in:3.19.0-58.64~14.04.1USN-2949-1
linux-lts-wilyUbuntu
Fixed in:4.2.0-35.40~14.04.1USN-2947-2

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityHigh
AvailabilityNone

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

0.44%probability of exploitation in 30 days
35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-19 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2015-5477High7.891%-Fix
CVE-2014-9034Medium5.083%-Fix
CVE-2016-4977High8.879%--
CVE-2016-3236Critical9.878%--
CVE-2014-7141Medium6.476%-Fix
CVE-2015-5374High7.874%--
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.