CVE-2011-1573

Name: CVE-2011-1573
Creator: NVD / NIST
Published: 2012-02-02T04:09:47.69+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 2.78%

Last modified Jun 16, 2026

CVE-2011-1573 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. net/sctp/sm_make_chunk.c in the Linux kernel before 2.6.34, when addip_enable and auth_enable are used, does not consider the amount of zero padding during calculation of chunk lengths for (1) INIT and (2) INIT ACK chunks, which allows remote attackers to cause a denial of service (OOPS) via crafted packet data.. EPSS estimates a 2.78% chance of exploitation in the next 30 days.

Description

net/sctp/sm_make_chunk.c in the Linux kernel before 2.6.34, when addip_enable and auth_enable are used, does not consider the amount of zero padding during calculation of chunk lengths for (1) INIT and (2) INIT ACK chunks, which allows remote attackers to cause a denial of service (OOPS) via crafted packet data.

Metrics

CVSS 3.1

5.9/10

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

EPSS Probability

2.78%

84.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-682

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 2.6.34

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a8170c35e738d62e9919ce5b109cf4ed66e95bde
http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.34Broken Link
http://openwall.com/lists/oss-security/2011/04/11/12Mailing List, Patch, Third Party Advisory
http://openwall.com/lists/oss-security/2011/04/11/4Mailing List, Patch, Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2011-0927.htmlThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=695383Exploit, Issue Tracking, Patch, Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a8170c35e738d62e9919ce5b109cf4ed66e95bde
http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.34Broken Link
http://openwall.com/lists/oss-security/2011/04/11/12Mailing List, Patch, Third Party Advisory
http://openwall.com/lists/oss-security/2011/04/11/4Mailing List, Patch, Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2011-0927.htmlThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=695383Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Feb 2, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-1573?

How severe is CVE-2011-1573?

CVE-2011-1573 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 2.78% probability of exploitation in the next 30 days.

How do I fix CVE-2011-1573?

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-2011-1573?

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

Scan your code now

Source: NVD / NIST