What is CVE-2012-2119?

CVE-2012-2119 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.2 out of 10, classified as a Buffer Overflow flaw (CWE-119). CVE-2012-2119 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2012-2119?

CVE-2012-2119 has a CVSS score of 5.2 out of 10, rated Medium severity. The vector string is AV:A/AC:M/Au:S/C:N/I:N/A:C.

Is there a patch available for CVE-2012-2119?

No patch is currently available for CVE-2012-2119. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2012-2119 actively exploited?

CVE-2012-2119 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-2012-2119

Medium

Buffer overflow in the macvtap device driver in the Linux kernel before 3.4.5, when running in certain configurations, allows privileged KVM guest users to cause a denial of service (crash) via a long descriptor with a long vector length.

Package Linux Kernel

Published 2013-01-22

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

5.2

out of 10

Medium

Attack Vector

Adjacent

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

None

Integrity

None

Availability

Vector string

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

Weakness type

CWE-119

CVE-2012-2119 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-2012-2119 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=814278
Lists
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
Marc
http://marc.info/?l=linux-netdev&m=133455718001608&w=2
Red Hat
http://rhn.redhat.com/errata/RHSA-2012-0743.html
Ubuntu Security
http://ubuntu.com/usn/usn-1529-1
Kernel.org
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5
Openwall
http://www.openwall.com/lists/oss-security/2012/04/19/14
Oss
https://oss.oracle.com/git/?p=redpatch.git%3Ba=commit%3Bh=4aae94d1c7b32316911c86176c0ed4f8ed62da73
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b92946e2919134ebe2a4083e4302236295ea2a73
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/b92946e2919134ebe2a4083e4302236295ea2a73
Patch

Details

CVE ID CVE-2012-2119

Severity Medium

CVSS score 5.2 / 10

CVSS version 2.0

Published 2013-01-22

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2012-2119?

CVE-2012-2119 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.2 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2012-2119 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2012-2119?

CVE-2012-2119 has a CVSS score of 5.2 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:A/AC:M/Au:S/C:N/I:N/A:C.
Is there a patch available for CVE-2012-2119?

No patch is currently available for CVE-2012-2119. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2012-2119 actively exploited?

No — CVE-2012-2119 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 →