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channels/chan_sip.c in Asterisk Open Source 1.8.x before 1.8.26.1, 11.8.x before 11.8.1, and 12.1.x before 12.1.1, and Certified Asterisk 1.8.15 before 1.8.15-cert5 and 11.6 before 11.6-cert2, when chan_sip has a certain configuration, allows remote authenticated users to cause a denial of service (channel and file descriptor consumption) via an INVITE request with a (1) Session-Expires or (2) Min-SE header with a malformed or invalid value.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade asterisk | Mar 31, 2017 | Apr 18, 2014 |
| Freebsd | — | Upgrade asterisk18Upgrade asterisk11 | Dec 10, 2025 | Mar 10, 2014 |
| Gentoo Linux | — | Upgrade net-misc/asterisk. | Oct 30, 2017 | Apr 18, 2014 |
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