Joined: 12 May 2004
|Posted: Mon Jan 22, 2007 11:26 pm Post subject: [ GLSA 200701-14 ] Mod_auth_kerb: Denial of Service
|Gentoo Linux Security Advisory
Title: Mod_auth_kerb: Denial of Service (GLSA 200701-14)
Date: January 22, 2007
Updated: December 30, 2007
Mod_auth_kerb is vulnerable to a buffer overflow possibly allowing a Denial
Mod_auth_kerb is an Apache authentication module using Kerberos.
Vulnerable: < 5.0_rc7-r1
Unaffected: >= 5.0_rc7-r1
Architectures: All supported architectures
Mod_auth_kerb improperly handles component byte encoding in the
der_get_oid() function, allowing for a buffer overflow to occur if
there are no components which require more than one byte for encoding.
An attacker could try to access a Kerberos protected resource on an
Apache server with an incorrectly configured service principal and
crash the server process. It is important to note that this buffer
overflow is not known to allow for the execution of code.
There is no known workaround at this time.
All mod_auth_kerb users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=www-apache/mod_auth_kerb-5.0_rc7-r1"
Last edited by GLSA on Sat Jul 28, 2012 4:23 am; edited 5 times in total