CVE-2022-24793

HIGH
Published Apr 6, 20224y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Apr 6, 2022 4y ago
Last Modified Jun 17, 2026 2w ago

Description

PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue in CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-120

Affected Products 4

VendorProductVersionRange
pjsippjsip* ≤2.12
debiandebian_linux9.0any
debiandebian_linux10.0any
debiandebian_linux11.0any

References 8

  • github.com https://github.com/pjsip/pjproject/commit/9fae8f43accef8ea65d4a8ae9cdf297c46cfe29a
    PatchThird Party Advisory
  • github.com https://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4
    PatchThird Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2022/05/msg00047.html
    Mailing ListThird Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
    Mailing ListThird Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html
  • security.gentoo.org https://security.gentoo.org/glsa/202210-37
    Third Party Advisory
  • debian.org https://www.debian.org/security/2022/dsa-5285
    Third Party Advisory

Remediation

  • github.com https://github.com/pjsip/pjproject/commit/9fae8f43accef8ea65d4a8ae9cdf297c46cfe29a
    PatchThird Party Advisory
  • github.com https://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4
    PatchThird Party Advisory