PT-2022-2183 · Pjsip+3 · Pjsip+3

Highsauwming · Published 2020-07-06 · Updated 2025-11-04 · CVE-2022-21723

Positive Technologies (AI Summary)

CVSS v2.0

9.4

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:N/A:C

Name of the Vulnerable Software and Affected Versions PJSIP versions 2.11.1 and prior

Description The issue is related to a potential out-of-bound read access when parsing an incoming SIP message that contains a malformed multipart. This affects all PJSIP users that accept SIP multipart. The problem can be exploited by a remote attacker to cause a denial of service.

Recommendations For PJSIP versions 2.11.1 and prior, update to a version that includes the patch available in the master branch, as there are no known workarounds for this issue. As a temporary workaround, consider restricting the acceptance of SIP multipart messages until the patch is applied.

Exploit

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2020-2313

ALT-PU-2024-15954

ALT-PU-2024-16030

BDU:2022-02209

CVE-2022-21723

DLA-2962-1

DLA-3194-1

DLA-3549-1

DLA-3887-1

DSA-5285-1

GHSA-7FW8-54CV-R7PM

USN-6422-1

Affected Products

Alt Linux

Linuxmint

Pjsip

Ubuntu

References · 53

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21723.json · Exploit
• https://github.com/pjsip/pjproject/security/advisories/GHSA-7fw8-54cv-r7pm · Patch
• https://github.com/pjsip/pjproject/commit/077b465c33f0aec05a49cd2ca456f9a1b112e896 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-21723 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-21723 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-21723 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6422-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-24754 · Vendor Advisory
• http://seclists.org/fulldisclosure/2022/Mar/2 · Patch
• https://osv.dev/vulnerability/DLA-2962-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-39244 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2022-21723 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-21723 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-21723 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-23547 · Vendor Advisory