Title: Asterisk SIP Channel Driver UDP Packets Remote Denial of Service Vulnerability
Severity: MODERATE
Description:
Asterisk is a private branch exchange (PBX) application available for Linux, BSD, and Mac OS X platforms.
Asterisk is prone to a remote denial-of-service vulnerability because it fails to properly handle certain UDP packets.
Specifically, the vulnerability resides in the 'channels/chan_sip.c' SIP channel driver when handling certain SIP UDP packets.
Exploiting this issue allows remote attackers to cause the application to crash, effectively denying service to legitimate users.
NOTE: This record may be a duplicate of the issue discussed in BID 23093 (Asterisk SIP Channel Driver Response Code Zero Remote Denial of Service Vulnerability). We are still investigating this issue and will retire this BID if we find it to be a duplicate.
Affected Products:
- Asterisk Asterisk 0.1.11
- Asterisk Asterisk 0.1.7
- Asterisk Asterisk 0.1.8
- Asterisk Asterisk 0.1.9
- Asterisk Asterisk 0.1.9 -1
- Asterisk Asterisk 0.2.0
- Asterisk Asterisk 0.3.0
- Asterisk Asterisk 0.4.0
- Asterisk Asterisk 0.7.0 .0
- Asterisk Asterisk 0.7.1
- Asterisk Asterisk 0.7.2
- Asterisk Asterisk 0.9.0 .0
- Asterisk Asterisk 1.0.0
- Asterisk Asterisk 1.0.10
- Asterisk Asterisk 1.0.11
- Asterisk Asterisk 1.0.12
- Asterisk Asterisk 1.0.6
- Asterisk Asterisk 1.0.7
- Asterisk Asterisk 1.0.8
- Asterisk Asterisk 1.0.9
- Asterisk Asterisk 1.2.0 .0-beta1
- Asterisk Asterisk 1.2.0 .0-beta2
- Asterisk Asterisk 1.2.10
- Asterisk Asterisk 1.2.11
- Asterisk Asterisk 1.2.11
- Asterisk Asterisk 1.2.13
- Asterisk Asterisk 1.2.14
- Asterisk Asterisk 1.2.15
- Asterisk Asterisk 1.2.16
- Asterisk Asterisk 1.2.17
- Asterisk Asterisk 1.2.5
- Asterisk Asterisk 1.2.6
- Asterisk Asterisk 1.2.7
- Asterisk Asterisk 1.2.8
- Asterisk Asterisk 1.2.9
- Asterisk Asterisk 1.4 Beta
- Asterisk Asterisk 1.4.1
- Asterisk Asterisk 1.4.2
- Asterisk Asterisk Appliance Developer Kit 0.4.0
- Asterisk Asterisk Business Edition A
- Asterisk Asterisk Business Edition B.1.3.2
- Asterisk AsteriskNow Beta 5
- Debian Linux 3.1.0
- Debian Linux 3.1.0 alpha
- Debian Linux 3.1.0 amd64
- Debian Linux 3.1.0 arm
- Debian Linux 3.1.0 hppa
- Debian Linux 3.1.0 ia-32
- Debian Linux 3.1.0 ia-64
- Debian Linux 3.1.0 m68k
- Debian Linux 3.1.0 mips
- Debian Linux 3.1.0 mipsel
- Debian Linux 3.1.0 ppc
- Debian Linux 3.1.0 s/390
- Debian Linux 3.1.0 sparc
- Debian Linux 4.0
- Debian Linux 4.0 alpha
- Debian Linux 4.0 amd64
- Debian Linux 4.0 arm
- Debian Linux 4.0 hppa
- Debian Linux 4.0 ia-32
- Debian Linux 4.0 ia-64
- Debian Linux 4.0 m68k
- Debian Linux 4.0 mips
- Debian Linux 4.0 mipsel
- Debian Linux 4.0 powerpc
- Debian Linux 4.0 s/390
- Debian Linux 4.0 sparc
- Gentoo Linux
- SuSE Linux 10.1
- SuSE openSUSE 10.2
References:
- Asterisk: ASA-2007-011 - Asterisk Project Security Advisory
- Asterisk: Asterisk Security
- Asterisk: Asterisk segfaults upon receipt of a certain SIP packet (SIP Response code 0)
- Asterisk@Home: Asterisk@Home Homepage
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