CVE-2011-1573

Published: 06 October 2011

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.

From the Ubuntu security team

It was discovered that the Stream Control Transmission Protocol (SCTP) implementation incorrectly calculated lengths. If the net.sctp.addip_enable variable was turned on, a remote attacker could send specially crafted traffic to crash the system.

Priority

Medium

CVSS 3 base score: 5.9

Status

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1573
• http://permalink.gmane.org/gmane.comp.security.oss.general/4856
• https://usn.ubuntu.com/usn/usn-1141-1
• https://usn.ubuntu.com/usn/usn-1162-1
• https://usn.ubuntu.com/usn/usn-1159-1
• https://usn.ubuntu.com/usn/usn-1236-1
• https://usn.ubuntu.com/usn/usn-1241-1
• https://usn.ubuntu.com/usn/usn-1256-1
• NVD
• Launchpad
• Debian

Bugs

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1573
• https://launchpad.net/bugs/869205