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>> Linux Kernel Socket Options Interface "do_ipv6_setsockopt()" Denial of Service Issue

Title : Linux Kernel Socket Options Interface "do_ipv6_setsockopt()" Denial of Service Issue
VUPEN ID : VUPEN/ADV-2007-1122
CVE ID : CVE-2007-1388
CWE ID : VUPEN VNS Only
CVSS V2 : VUPEN VNS Only
Rated as : Low Risk 
Remotely Exploitable : No
Locally Exploitable : Yes
Release Date : 2007-03-27


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in Linux Kernel, which could be exploited by local attackers to cause a denial of service. This issue is due to an NULL pointer dereference error in the "do_ipv6_setsockopt()" [net/ipv6/ipv6_sockglue.c] function when processing the "opt" parameter, which could be exploited by malicious users to panic or crash an affected system, creating a denial of service condition.

Affected Products

Linux Kernel versions 2.6.x

Solution

Upgrade to Linux Kernel version 2.6.20.4 :
http://www.kernel.org

References

http://www.vupen.com/english/advisories/2007/1122
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.4
http://bugzilla.kernel.org/show_bug.cgi?id=8155

Credits

Vulnerability reported by Gabriel Campana

ChangeLog

2007-03-27 : Initial release

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