CVE-2022-31002: Out-of-bounds Read in Sofia-SIP

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-05-31 · updated 2026-06-17
Weakness: CWE-125

Description

Sofia-SIP is an open-source Session Initiation Protocol (SIP) User-Agent library. Prior to version 1.13.8, an attacker can send a message with evil sdp to FreeSWITCH, which may cause a crash. This type of crash may be caused by a URL ending with `%`. Version 1.13.8 contains a patch for this issue.

Affected products

Debian Linux: 10.0
freeswitch sofia-sip: before 1.13.8 — fixed in 1.13.8

How to fix

Upgrade to a fixed version: freeswitch sofia-sip 1.13.8. Check the vendor advisory for mitigations.

References

https://github.com/freeswitch/sofia-sip/commit/51841eb53679434a386fb2dcbca925dcc48d58ba
https://github.com/freeswitch/sofia-sip/security/advisories/GHSA-g3x6-p824-x6hm
https://lists.debian.org/debian-lts-announce/2022/09/msg00001.html
https://security.gentoo.org/glsa/202210-18
https://www.debian.org/security/2023/dsa-5410
https://github.com/freeswitch/sofia-sip/commit/51841eb53679434a386fb2dcbca925dcc48d58ba
https://github.com/freeswitch/sofia-sip/security/advisories/GHSA-g3x6-p824-x6hm
https://lists.debian.org/debian-lts-announce/2022/09/msg00001.html
https://security.gentoo.org/glsa/202210-18
https://www.debian.org/security/2023/dsa-5410

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