CVE & CISA-KEV Catalog

CVE-2013-7421

LOW

2.1

CVSS v2

Description

The Crypto API in the Linux kernel before 3.18.5 allows local users to load arbitrary kernel modules via a bind system call for an AF_ALG socket with a module name in the salg_name field, a different vulnerability than CVE-2014-9644.

CWE-269Improper Privilege Management

How to fix

Remediation Available

linuxDebian

Fixed in:3.16.7-ckt4-2CVE-2013-7421

Fixed in:3.16.7-ckt4-2CVE-2013-7421

Fixed in:3.16.7-ckt4-2CVE-2013-7421

Fixed in:3.16.7-ckt4-2CVE-2013-7421

linuxUbuntu

Fixed in:3.13.0-48.80USN-2544-1

linux-image-3.13.0-48-genericUbuntu

Fixed in:3.13.0-48.80USN-2544-1

linux-image-3.13.0-48-generic-lpaeUbuntu

Fixed in:3.13.0-48.80USN-2544-1

linux-image-3.13.0-48-lowlatencyUbuntu

Fixed in:3.13.0-48.80USN-2544-1

linux-image-3.13.0-48-powerpc-e500Ubuntu

Fixed in:3.13.0-48.80USN-2544-1

linux-image-3.13.0-48-powerpc-e500mcUbuntu

Fixed in:3.13.0-48.80USN-2544-1

linux-image-3.13.0-48-powerpc-smpUbuntu

Fixed in:3.13.0-48.80USN-2544-1

linux-image-3.13.0-48-powerpc64-embUbuntu

Fixed in:3.13.0-48.80USN-2544-1

linux-image-3.13.0-48-powerpc64-smpUbuntu

Fixed in:3.13.0-48.80USN-2544-1

linux-image-3.16.0-33-genericUbuntu

Fixed in:3.16.0-33.44~14.04.1USN-2545-1

linux-image-3.16.0-33-generic-lpaeUbuntu

Fixed in:3.16.0-33.44~14.04.1USN-2545-1

linux-image-3.16.0-33-lowlatencyUbuntu

Fixed in:3.16.0-33.44~14.04.1USN-2545-1

linux-image-3.16.0-33-powerpc-e500mcUbuntu

Fixed in:3.16.0-33.44~14.04.1USN-2545-1

linux-image-3.16.0-33-powerpc-smpUbuntu

Fixed in:3.16.0-33.44~14.04.1USN-2545-1

linux-image-3.16.0-33-powerpc64-embUbuntu

Fixed in:3.16.0-33.44~14.04.1USN-2545-1

linux-image-3.16.0-33-powerpc64-smpUbuntu

Fixed in:3.16.0-33.44~14.04.1USN-2545-1

linux-lts-utopicUbuntu

Fixed in:3.16.0-33.44~14.04.1USN-2545-1

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

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

0.72%probability of exploitation in 30 days

49thpercentile

Moderate risk: more likely to be exploited than 49% of all known CVEs.

References

Patch1

github.com

Exploit1

lkml.org

Third-Party Advisory17

Other references1

git.kernel.org

Related Vulnerabilities

Other CWE-269 (Improper Privilege Management) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-12635	Critical	9.8	100%	-	Fix
CVE-2022-24637	Critical	9.8	99%	-	Fix
CVE-2017-5689	Critical	9.8	92%	KEV	Fix
CVE-2020-3243	Critical	9.8	88%	-	-
CVE-2024-21888	High	8.8	87%	-	-
CVE-2022-0441	Critical	9.8	85%	-	Fix

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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.