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OpenAFS: Denial of Service


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200801-04 / openafs
Release Date January 09, 2008
Latest Revision January 09, 2008: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-fs/openafs < 1.4.6 >= 1.4.6 All supported architectures

Related bugreports: #203573


A Denial of Service vulnerability has been discovered in OpenAFS.

2.  Impact Information


OpenAFS is a distributed network filesystem.


Russ Allbery, Jeffrey Altman, Dan Hyde and Thomas Mueller discovered a race condition due to an improper handling of the clients callbacks lists.


A remote attacker could construct cases which trigger the race condition, resulting in a server crash.

3.  Resolution Information


There is no known workaround at this time.


All OpenAFS users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-fs/openafs-1.4.6"

4.  References


Page updated January 09, 2008

Summary: This is a Gentoo Linux Security Advisory

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