PT-2022-2682 · Pjsip+3 · Pjsip+3

Cossack9989 · Published 2022-04-06 · Updated 2025-11-04 · CVE-2022-24793

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions PJSIP versions 2.12 and prior

Description The issue is related to a buffer overflow vulnerability in the PJSIP library's DNS resolution implementation. This vulnerability can be exploited by a remote attacker to execute arbitrary code on the target system. The vulnerability occurs due to a lack of size checking on input data when processing DNS packets, which can lead to a heap buffer overflow.

Recommendations For PJSIP versions 2.12 and prior, consider disabling DNS resolution in PJSIP config by setting nameserver count to zero as a temporary workaround. Update to a version that includes the patch available in the master branch of the pjsip/pjproject GitHub repository. Alternatively, use an external resolver instead of the built-in PJSIP DNS resolution to minimize the risk of exploitation.

Exploit

Fix

Heap Based Buffer Overflow

Buffer Overflow

Weakness Enumeration

CWE-122

CWE-120

Related Identifiers

BDU:2022-03172

CVE-2022-24793

DLA-3036-1

DLA-3194-1

DLA-3394-1

DLA-3549-1

DLA-3887-1

DSA-5285-1

DSA-5438-1

GHSA-P6G5-V97C-W5Q4

GHSA-Q9CP-8WCQ-7PFR

USN-6422-1

Affected Products

Linuxmint

Pjsip

Red Os

Ubuntu

References · 57

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/24xxx/CVE-2022-24793.json · Exploit
• https://github.com/pjsip/pjproject/commit/9fae8f43accef8ea65d4a8ae9cdf297c46cfe29a · Patch
• https://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-24793 · Security Note
• https://osv.dev/vulnerability/USN-6422-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-24754 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-39244 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-24793 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-21723 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-23547 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3194-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-21722 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-31031 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-24793 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-43299 · Vendor Advisory