CVE-2022-23547 - CVE House
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Status published Medium CVE-2022-23547

Heap buffer overflow in pjproject when decoding STUN message

Vulnerability Description

PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. This issue is similar to GHSA-9pfh-r8x4-w26w. Possible buffer overread when parsing a certain STUN message. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as commit in the master branch.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2023-27585
PJSIP is a free and open source multimedia communication library...
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CVE-2022-39269
Media transport downgrade from the secure version (SRTP) to non-secure (RTP) in pjsip
Critical 9.1
CVE-2022-39244
Buffer overflow in pjlib scanner and pjmedia
High 7.5

Affected Vendor

Affected Software

pjproject
Vulnerable Versions:
<= 2.13

Timeline

Official Publish: December 23rd, 2022
Last Modified: November 4th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

Weaknesses (CWE)

CWE-122

MITRE ATT&CK TTPs

T1203 Exploitation for Client Execution
Execution
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion