CVE-2011-2898

Name: CVE-2011-2898
Creator: NVD / NIST
Published: 2012-05-24T23:55:02.057+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.45%

Last modified Jun 16, 2026

CVE-2011-2898 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. net/packet/af_packet.c in the Linux kernel before 2.6.39.3 does not properly restrict user-space access to certain packet data structures associated with VLAN Tag Control Information, which allows local users to obtain potentially sensitive information via a crafted application.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

net/packet/af_packet.c in the Linux kernel before 2.6.39.3 does not properly restrict user-space access to certain packet data structures associated with VLAN Tag Control Information, which allows local users to obtain potentially sensitive information via a crafted application.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Probability

0.45%

35.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 2.6.39.3

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.3Broken Link
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13fcb7bd322164c67926ffe272846d4860196dc6
http://www.openwall.com/lists/oss-security/2011/08/03/7Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=728023Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/13fcb7bd322164c67926ffe272846d4860196dc6Patch, Third Party Advisory
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.3Broken Link
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13fcb7bd322164c67926ffe272846d4860196dc6
http://www.openwall.com/lists/oss-security/2011/08/03/7Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=728023Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/13fcb7bd322164c67926ffe272846d4860196dc6Patch, Third Party Advisory

Timeline

Published: May 24, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-2898?

How severe is CVE-2011-2898?

CVE-2011-2898 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2011-2898?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-2898?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST