What is CVE-2013-6431?

CVE-2013-6431 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Permissions, Privileges and Access Control flaw (CWE-264). CVE-2013-6431 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2013-6431?

CVE-2013-6431 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is AV:L/AC:M/Au:N/C:N/I:N/A:C.

Is there a patch available for CVE-2013-6431?

No patch is currently available for CVE-2013-6431. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2013-6431 actively exploited?

CVE-2013-6431 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Permissions, Privileges and Access Control (CWE-264)?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/264.html

CVE-2013-6431

Medium

The fib6_add function in net/ipv6/ip6_fib.c in the Linux kernel before 3.11.5 does not properly implement error-code encoding, which allows local users to cause a denial of service (NULL pointer dereference and system crash) by leveraging the CAP_NET_ADMIN capability for an IPv6 SIOCADDRT ioctl call.

Package Linux Kernel

Published 2013-12-09

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

None

Integrity

None

Availability

Vector string

AV:L/AC:M/Au:N/C:N/I:N/A:C

Weakness type

CWE-264

CVE-2013-6431 is a Permissions, Privileges and Access Control vulnerability

What is Permissions, Privileges and Access Control?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2013-6431 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html
Red Hat
http://rhn.redhat.com/errata/RHSA-2014-0100.html
Kernel.org
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.11.5
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1039054
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ae7b4e1f213aa659aedf9c6ecad0bf5f0476e1e2
Patch
Kernel patch commit
http://www.openwall.com/lists/oss-security/2013/12/06/5
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/ae7b4e1f213aa659aedf9c6ecad0bf5f0476e1e2
Patch

Details

CVE ID CVE-2013-6431

Severity Medium

CVSS score 4.7 / 10

CVSS version 2.0

Published 2013-12-09

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2013-6431?

CVE-2013-6431 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Permissions, Privileges and Access Control flaw (CWE-264) . CVE-2013-6431 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2013-6431?

CVE-2013-6431 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:M/Au:N/C:N/I:N/A:C.
Is there a patch available for CVE-2013-6431?

No patch is currently available for CVE-2013-6431. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2013-6431 actively exploited?

No — CVE-2013-6431 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Permissions, Privileges and Access Control (CWE-264)?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. View CWE-264 on MITRE CWE →