CVE-2011-1573

low-risk
Published 2012-02-02

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.

Do I need to act?

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0.75% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Products (1)

Affected Vendors

Linux

References (12)

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...
Broken Link http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.34
Mailing List http://openwall.com/lists/oss-security/2011/04/11/12
Mailing List http://openwall.com/lists/oss-security/2011/04/11/4
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2011-0927.html
Exploit https://bugzilla.redhat.com/show_bug.cgi?id=695383
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...
Broken Link http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.34
Mailing List http://openwall.com/lists/oss-security/2011/04/11/12
Mailing List http://openwall.com/lists/oss-security/2011/04/11/4
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2011-0927.html
Exploit https://bugzilla.redhat.com/show_bug.cgi?id=695383
26
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 3/34 · Minimal
Exposure 5/34 · Minimal