GLSA-200703-14 : Asterisk: SIP Denial of Service
High Nessus Plugin ID 24839
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200703-14 (Asterisk: SIP Denial of Service)
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.
SolutionAll Asterisk users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose net-misc/asterisk Note: Asterisk 1.0.x is no longer supported upstream so users should consider upgrading to Asterisk 1.2.x.