Joined: 12 May 2004
|Posted: Fri Mar 16, 2007 11:26 pm Post subject: [ GLSA 200703-14 ] Asterisk: SIP Denial of Service
|Gentoo Linux Security Advisory
Title: Asterisk: SIP Denial of Service (GLSA 200703-14)
Date: March 16, 2007
Asterisk is vulnerable to Denial of Service in the SIP channel.
Asterisk is an open source implementation of a telephone private branch exchange (PBX).
Vulnerable: < 1.2.14-r1
Unaffected: >= 1.2.14-r1
Unaffected: >= 1.0.12-r1 < 1.0.13
Architectures: All supported architectures
The MU Security Research Team discovered that Asterisk contains a NULL-pointer dereferencing error in the SIP channel when handling request messages.
A remote attacker could cause an Asterisk server listening for SIP messages to crash by sending a specially crafted SIP request message.
There is no known workaround at this time.
All Asterisk users should upgrade to the latest version:
Note: Asterisk 1.0.x is no longer supported upstream so users should consider upgrading to Asterisk 1.2.x.
|# emerge --sync
# emerge --ask --oneshot --verbose net-misc/asterisk
Last edited by GLSA on Wed Aug 13, 2008 4:19 am; edited 2 times in total