Technical Description

A vulnerability has been identified in Linux Kernel, which could be exploited by local attackers to cause a denial of service. This flaw is due to a NULL pointer dereference in "ip_route_input" and "inet_rtm_getroute" [net/ipv4/route.c] when handling a specially crafted "route" command for a multicast IP address, which could be exploited by malicious users to crash a vulnerable system, creating a denial of service condition.


Affected Products

Linux Kernel version 2.6.16.7 and prior
Linux Kernel version 2.4.32 and prior

Solution

Upgrade to Linux Kernel version 2.6.16.8 or 2.4.33 :
http://www.kernel.org/

References

http://www.vupen.com/english/advisories/2006/1399
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.8
http://bugzilla.kernel.org/show_bug.cgi?id=6388

Credits

Vulnerability reported by Alexandra Kossovsky

ChangeLog

2006-04-18 : Initial release
2006-08-12 : Updated Solution

Vulnerability Management

Subscribe to VUPEN VNS and receive real-time alerts with CVE, CWE, and CVSS when new advisories or patches relevant to your systems and network configurations are available.

Feedback

If you have additional information or corrections for this security advisory please submit them via our contact form.