Sofia-SIP is an open-source Session Initiation Protocol (SIP) User-Agent library. Prior to version 1.13.8, when parsing each line of a sdp message, `rest = record + 2` will access the memory behind `\0` and cause an out-of-bounds write. An attacker can send a message with evil sdp to FreeSWITCH, causing a crash or more serious consequence, such as remote code execution. Version 1.13.8 contains a patch for this issue.
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
The product writes data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://github.com/freeswitch/sofia-sip/security/advisories/GHSA-8w5j-6g2j-pxcp | third party advisory exploit |
| https://github.com/freeswitch/sofia-sip/commit/907f2ac0ee504c93ebfefd676b4632a3575908c9 | third party advisory patch |
| https://lists.debian.org/debian-lts-announce/2022/09/msg00001.html | third party advisory mailing list |
| https://security.gentoo.org/glsa/202210-18 | third party advisory vendor advisory |
| https://www.debian.org/security/2023/dsa-5410 | vendor advisory |