CVE & CISA-KEV Catalog

CVE-2013-7446

MEDIUM
5.3
CVSS v3
NVD

Description

Use-after-free vulnerability in net/unix/af_unix.c in the Linux kernel before 4.3.3 allows local users to bypass intended AF_UNIX socket permissions or cause a denial of service (panic) via crafted epoll_ctl calls.

How to fix

Remediation Available
linuxDebian
Fixed in:4.2.6-2CVE-2013-7446
Fixed in:4.2.6-2CVE-2013-7446
Fixed in:4.2.6-2CVE-2013-7446
Fixed in:4.2.6-2CVE-2013-7446
linuxUbuntu
Fixed in:3.13.0-77.121USN-2887-1
linux-image-3.13.0-77-genericUbuntu
Fixed in:3.13.0-77.121USN-2887-1
linux-image-3.13.0-77-generic-lpaeUbuntu
Fixed in:3.13.0-77.121USN-2887-1
linux-image-3.13.0-77-lowlatencyUbuntu
Fixed in:3.13.0-77.121USN-2887-1
linux-image-3.13.0-77-powerpc-e500Ubuntu
Fixed in:3.13.0-77.121USN-2887-1
linux-image-3.13.0-77-powerpc-e500mcUbuntu
Fixed in:3.13.0-77.121USN-2887-1
linux-image-3.13.0-77-powerpc-smpUbuntu
Fixed in:3.13.0-77.121USN-2887-1
linux-image-3.13.0-77-powerpc64-embUbuntu
Fixed in:3.13.0-77.121USN-2887-1
linux-image-3.13.0-77-powerpc64-smpUbuntu
Fixed in:3.13.0-77.121USN-2887-1
linux-image-3.16.0-60-genericUbuntu
Fixed in:3.16.0-60.80~14.04.1USN-2888-1
linux-image-3.16.0-60-generic-lpaeUbuntu
Fixed in:3.16.0-60.80~14.04.1USN-2888-1
linux-image-3.16.0-60-lowlatencyUbuntu
Fixed in:3.16.0-60.80~14.04.1USN-2888-1
linux-image-3.16.0-60-powerpc-e500mcUbuntu
Fixed in:3.16.0-60.80~14.04.1USN-2888-1
linux-image-3.16.0-60-powerpc-smpUbuntu
Fixed in:3.16.0-60.80~14.04.1USN-2888-1
linux-image-3.16.0-60-powerpc64-embUbuntu
Fixed in:3.16.0-60.80~14.04.1USN-2888-1
linux-image-3.16.0-60-powerpc64-smpUbuntu
Fixed in:3.16.0-60.80~14.04.1USN-2888-1
linux-image-3.19.0-49-genericUbuntu
Fixed in:3.19.0-49.55~14.04.1USN-2889-2
linux-image-3.19.0-49-generic-lpaeUbuntu
Fixed in:3.19.0-49.55~14.04.1USN-2889-2
linux-image-3.19.0-49-lowlatencyUbuntu
Fixed in:3.19.0-49.55~14.04.1USN-2889-2
linux-image-3.19.0-49-powerpc-e500mcUbuntu
Fixed in:3.19.0-49.55~14.04.1USN-2889-2
linux-image-3.19.0-49-powerpc-smpUbuntu
Fixed in:3.19.0-49.55~14.04.1USN-2889-2
linux-image-3.19.0-49-powerpc64-embUbuntu
Fixed in:3.19.0-49.55~14.04.1USN-2889-2
linux-image-3.19.0-49-powerpc64-smpUbuntu
Fixed in:3.19.0-49.55~14.04.1USN-2889-2
linux-image-4.2.0-27-genericUbuntu
Fixed in:4.2.0-27.32~14.04.1USN-2890-2
linux-image-4.2.0-27-generic-lpaeUbuntu
Fixed in:4.2.0-27.32~14.04.1USN-2890-2
linux-image-4.2.0-27-lowlatencyUbuntu
Fixed in:4.2.0-27.32~14.04.1USN-2890-2
linux-image-4.2.0-27-powerpc-e500mcUbuntu
Fixed in:4.2.0-27.32~14.04.1USN-2890-2
linux-image-4.2.0-27-powerpc-smpUbuntu
Fixed in:4.2.0-27.32~14.04.1USN-2890-2
linux-image-4.2.0-27-powerpc64-embUbuntu
Fixed in:4.2.0-27.32~14.04.1USN-2890-2
linux-image-4.2.0-27-powerpc64-smpUbuntu
Fixed in:4.2.0-27.32~14.04.1USN-2890-2
linux-lts-utopicUbuntu
Fixed in:3.16.0-60.80~14.04.1USN-2888-1
linux-lts-vividUbuntu
Fixed in:3.19.0-49.55~14.04.1USN-2889-2
linux-lts-wilyUbuntu
Fixed in:4.2.0-27.32~14.04.1USN-2890-2

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 ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityLow
AvailabilityHigh

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

Exploit Intelligence

0.63%probability of exploitation in 30 days
46thpercentile

Moderate risk: more likely to be exploited than 46% of all known CVEs.

References

Exploit1
Vendor Advisory2
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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.