Description
The handle_request_info function in channels/chan_sip.c in Asterisk Open Source 1.6.2.x before 1.6.2.21 and 1.8.x before 1.8.7.2, when automon is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted sequence of SIP requests.
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 | 1:1.8.8.0~dfsg-1 | — |
| Debian 6.0 | asterisk | 1:1.6.2.9-2+squeeze4 | DSA-2367-1 |
| Debian 5.0 | asterisk | 1:1.4.21.2~dfsg-3+lenny6 | DSA-2367-1 |
Advisories 1
- DSA-2367-1 asterisk - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- [oss-security] 20111209 Re: CVE Request -- Asterisk -- AST-2011-013 and AST-2011-014 mailing-list
- [oss-security] 20111209 CVE Request -- Asterisk -- AST-2011-013 and AST-2011-014 mailing-list
- 47273 third-party-advisory
- 77598 vdb-entry
- http://downloads.asterisk.org/pub/security/AST-2011-014.html
- DSA-2367 vendor-advisory