What is CVE-2013-0309?

CVE-2013-0309 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Buffer Overflow flaw (CWE-119). CVE-2013-0309 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2013-0309?

CVE-2013-0309 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-2013-0309?

No patch is currently available for CVE-2013-0309. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2013-0309 actively exploited?

CVE-2013-0309 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/119.html

CVE-2013-0309

Medium

arch/x86/include/asm/pgtable.h in the Linux kernel before 3.6.2, when transparent huge pages are used, does not properly support PROT_NONE memory regions, which allows local users to cause a denial of service (system crash) via a crafted application.

Package Linux Kernel

Published 2013-02-22

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-119

CVE-2013-0309 is a Buffer Overflow vulnerability

What is Buffer Overflow?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2013-0309 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
http://rhn.redhat.com/errata/RHSA-2013-0496.html
Kernel.org
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.6.2
Openwall
http://www.openwall.com/lists/oss-security/2013/02/20/4
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=912898
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=027ef6c87853b0a9df53175063028edb4950d476
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/027ef6c87853b0a9df53175063028edb4950d476
Patch

Details

CVE ID CVE-2013-0309

Severity Medium

CVSS score 4.7 / 10

CVSS version 2.0

Published 2013-02-22

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2013-0309?

CVE-2013-0309 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2013-0309 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2013-0309?

CVE-2013-0309 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-2013-0309?

No patch is currently available for CVE-2013-0309. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2013-0309 actively exploited?

No — CVE-2013-0309 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. View CWE-119 on MITRE CWE →