Description
Asterisk Open Source 1.2.26 through 1.2.30.3 and Business Edition B.2.3.5 through B.2.5.5, when realtime IAX2 users are enabled, allows remote attackers to cause a denial of service (crash) via authentication attempts involving (1) an unknown user or (2) a user using hostname matching.
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 | 1:1.4.0~dfsg-1 | — |
References
- 32773 vdb-entry
- GLSA-200905-01 vendor-advisory
- 32956 third-party-advisory
- 50675 vdb-entry
- 4769 third-party-advisory
- 20081210 AST-2008-012: Remote crash vulnerability in IAX2 mailing-list
- http://downloads.digium.com/pub/security/AST-2008-012.html
- ADV-2008-3403 vdb-entry
- 34982 third-party-advisory
- 1021378 vdb-entry