chan_sip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted packet.
CVSS Details
- CVSS 3.1 Base Score: 9.8
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade asterisk | Jul 30, 2024 | Jul 6, 2011 |
| Freebsd | — | Upgrade asterisk16Upgrade asterisk14Upgrade asterisk18 | Dec 10, 2025 | Jun 25, 2011 |
| Gentoo Linux | — | Upgrade net-misc/asterisk. | Oct 30, 2017 | Jul 6, 2011 |
| Ubuntu | — | Upgrade asterisk | Nov 19, 2024 | Jul 6, 2011 |
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