25695 : Linux Kernel SCTP HB-ACK Chunk Processing Overflow DoS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
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Timeline

Disclosure Date
2006-05-22

Description

The Linux kernel contains a flaw that may allow a remote denial of service. The issue is triggered when a crafted HB-ACK chunk packet is sent to the SCTP handling code, which can be found in the '/net/sctp/sm_statefuns.c' file. The kernel then fails to properly validate the length of certain parameters, which might result in access to invalid memory and lead to loss of availability for the platform due to a kernel crash.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service, Input Manipulation
Impact: Loss of Availability
Exploit: Exploit Unknown
Disclosure: OSVDB Verified

Solution

Upgrade to version 2.4.33, 2.6.16.17 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Linux

Kernel

2.6.16.16

References

CVE ID: 2006-1857 (see also: NVD)
Secunia Advisory ID: 20185 20671 20716 21045 21179 21465 21476 21498 21954 22417
Related OSVDB ID: 25696 25697
Vendor URL: http://kernel.org/
Vendor Specific News/Changelog Entry: http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.33
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a601266e4f3c479790f373c2e3122a766d123652
Vendor Specific Advisory URL: http://lists.suse.com/archive/suse-security-announce/2006-Aug/0005.html
http://lists.suse.com/archive/suse-security-announce/2006-Jul/0008.html
http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm
http://www.trustix.org/errata/2006/0051/
http://www.ubuntu.com/usn/usn-302-1
Other Advisory URL: http://www.mandriva.com/security/advisories?name=MDKSA-2006:123
http://www.us.debian.org/security/2006/dsa-1097
RedHat RHSA: RHSA-2006:0575

Tools & Filters

	22058 24109 24110 27877

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 9.0
Source: nvd.nist.gov | Generated: 2006-05-22 | Disagree?

Blogs

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