#VU44345 Incorrect calculation in Linux kernel - CVE-2011-1573
Published: February 2, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU44345
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2011-1573
CWE-ID: CWE-682
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
Remediation
Install update from vendor's website.
External links
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a8170c35e738d62e9919ce5b109cf4ed66e95bde
- http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.34
- http://openwall.com/lists/oss-security/2011/04/11/12
- http://openwall.com/lists/oss-security/2011/04/11/4
- http://rhn.redhat.com/errata/RHSA-2011-0927.html
- https://bugzilla.redhat.com/show_bug.cgi?id=695383