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CVE-2023-27585

Published: Mar 14, 2023Updated: Nov 4, 2025 Sources: CVE List NVDCWE-120
7.5HIGH
NVD MITRE
EPSS Score
2.3%
Top 18.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-120CWE-122

Affected Products

teluu
commercialaka pjsip
pjsipMixed
Communications / voip-telephony
pjsip
oss-projectaka pjproject, pjmedia-video
pjprojectMixed
Communications / voip-telephony

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/pjsip/pjproject/commit/d1c5e4da5bae7f220bc30719888bb389c905c0c5
github.com
https://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4
github.com
https://github.com/pjsip/pjproject/security/advisories/GHSA-q9cp-8wcq-7pfr
github.com
and 5 more references View all →

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