CVE-2022-39269

Media transport downgrade from the secure version (SRTP) to non-secure (RTP) in pjsip

State: Published
Severity: 9.1 Critical
Published: Oct 6, 2022
Updated: Apr 23, 2025
Reserved: Sep 2, 2022

Description

PJSIP is a free and open source multimedia communication library written in C. When processing certain packets, PJSIP may incorrectly switch from using SRTP media transport to using basic RTP upon SRTP restart, causing the media to be sent insecurely. The vulnerability impacts all PJSIP users that use SRTP. The patch is available as commit d2acb9a in the master branch of the project and will be included in version 2.13. Users are advised to manually patch or to upgrade. There are no known workarounds for this vulnerability.

Scores

CVSS	Score	Vector	Source
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	GitHub_M

Weaknesses

CWE-319 Cleartext Transmission of Sensitive Information

Affected Products

Product	Versions
pjprojectpjsip	>= 2.11, < 2.13Affected

References

https://github.com/pjsip/pjproject/security/advisories/GHSA-wx5m-cj97-4wwg
https://github.com/pjsip/pjproject/commit/d2acb9af4e27b5ba75d658690406cec9c274c5cc
GLSA-202210-37vendor-advisory
[debian-lts-announce] 20230222 [SECURITY] [DLA 3335-1] asterisk security updatemailing-list
DSA-5358vendor-advisory

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