CVE-2022-39269

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

Published Oct 6, 2022 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3335-1 asterisk security update
Debian DSA Debian DSA DSA-5358-1 asterisk security update
EUVD EUVD EUVD-2022-41776 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Teluu
Teluu pjsip
CPEs cpe:2.3:a:pjsip:pjsip:*:*:*:*:*:*:*:* cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*
Vendors & Products Pjsip
Pjsip pjsip
Teluu
Teluu pjsip
Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Apr 23, 2025, 4:52 PM
Reserved
Sep 2, 2022, 12:00 AM
Status
Modified
Published
Oct 6, 2022, 6:16 PM
Modified
Jun 17, 2026, 4:58 AM