Description
The SIP channel driver (chan_sip) in Asterisk Open Source 1.4.x before 1.4.11, AsteriskNOW before beta7, Asterisk Appliance Developer Kit 0.x before 0.8.0, and s800i (Asterisk Appliance) 1.x before 1.0.3 allows remote attackers to cause a denial of service (memory exhaustion) via a SIP dialog that causes a large number of history entries to be created.
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 | 1:1.4.11~dfsg-1 | — |
References
- 3047 third-party-advisory
- ADV-2007-2953 vdb-entry
- http://downloads.digium.com/pub/asa/AST-2007-020.html
- 25392 vdb-entry
- 20070821 AST-2007-020: Resource Exhaustion Vulnerability in Asterisk SIP channel driver mailing-list
- asterisk-sip-dialoghistory-dos(36145) vdb-entry
- 26553 third-party-advisory
- 1018595 vdb-entry