Description
The Manager Interface in Asterisk before 1.2.18 and 1.4.x before 1.4.3 allows remote attackers to cause a denial of service (crash) by using MD5 authentication to authenticate a user that does not have a password defined in manager.conf, resulting in a NULL pointer dereference.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | asterisk | 1:1.4.3~dfsg-1 | — |
| Debian 4.0 | asterisk | 1:1.2.13~dfsg-2etch1 | DSA-1358-1 |
| Debian 3.1 | asterisk | 1:1.0.7.dfsg.1-2sarge5 | DSA-1358-1 |
Advisories 1
- DSA-1358-1 asterisk Debian Security (DSA / DLA) · Mar 9, 2026
References
- ADV-2007-1534 vdb-entry
- 1017955 vdb-entry
- SUSE-SA:2007:034 vendor-advisory
- 35369 vdb-entry
- 2646 third-party-advisory
- 25582 third-party-advisory
- asterisk-interface-dos(33886) vdb-entry
- 24977 third-party-advisory
- 23649 vdb-entry
- DSA-1358 vendor-advisory
- 20070425 ASA-2007-012: Remote Crash Vulnerability in Manager Interface mailing-list
- http://www.asterisk.org/files/ASA-2007-012.pdf