CVE-2022-39269 Media transport downgrade from the secure version (SRTP) to non-secure (RTP) in pjsip

2022-10-0600:00:00

CWE-319

GitHub_M

www.cve.org

cve-2022-39269

pjsip

media transport downgrade

vulnerability

srtp

rtp

patch

upgrade

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

9.6 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

49.6%

JSON

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.

CNA Affected

[
  {
    "vendor": "pjsip",
    "product": "pjproject",
    "versions": [
      {
        "version": ">= 2.11, < 2.13",
        "status": "affected"
      }
    ]
  }
]