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CVE-2023-27585 Details

Description

PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.13 and prior affects applications that use PJSIP DNS resolver. It doesn't affect PJSIP users who do not utilise PJSIP DNS resolver. This vulnerability is related to CVE-2022-24793. The difference is that this issue is in parsing the query record `parse_query()`, while the issue in CVE-2022-24793 is in `parse_rr()`. A patch is available as commit `d1c5e4d` in the `master` branch. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver implementation instead.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/pjsip/pjproject/commit/d1c5e4da5bae7f220bc30719888bb389c905c0c5	CVE	Patch
https://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4	CVE	Vendor Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-q9cp-8wcq-7pfr	CVE	PatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2023/04/msg00020.html	CVE
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html	CVE
https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html	CVE
https://www.debian.org/security/2023/dsa-5438	CVE
https://www.pjsip.org/pjlib-util/docs/html/group__PJ__DNS__RESOLVER.htm	CVE	Product
https://github.com/pjsip/pjproject/commit/d1c5e4da5bae7f220bc30719888bb389c905c0c5	[email protected]	Patch
https://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4	[email protected]	Vendor Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-q9cp-8wcq-7pfr	[email protected]	PatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2023/04/msg00020.html	[email protected]
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html	[email protected]
https://www.debian.org/security/2023/dsa-5438	[email protected]
https://www.pjsip.org/pjlib-util/docs/html/group__PJ__DNS__RESOLVER.htm	[email protected]	Product

see all 15 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-120	Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')	[email protected]
CWE-122	Heap-based Buffer Overflow	[email protected]

Affected Products

Product	Versions
teluu pjsip	< 2.13
CPE cpe:2.3:a:teluu:pjsip:::::::: Remediation No remediation found in references.

Change History

10 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	CISA-ADP
Jun 17, 2026	CVE Modified	[email protected]
Nov 4, 2025	CVE Modified	CVE
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Aug 30, 2023	CVE Modified	[email protected]
Jun 23, 2023	CVE Modified	[email protected]
Apr 19, 2023	CVE Modified	[email protected]
Mar 24, 2023	Initial Analysis	[email protected]
Mar 20, 2023	CVE Modified	[email protected]