CVE-2023-27585

Published Mar 14, 2023 CVSS 3.1 · 7.5 High EPSS 2.3% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3394-1 asterisk security update
Debian DLA Debian DLA DLA-3549-1 ring security update
Debian DLA Debian DLA DLA-3887-1 ring security update
Debian DSA Debian DSA DSA-5438-1 asterisk security update
Debian DSA Debian DSA DSA-5956-1 ring security update
EUVD EUVD EUVD-2023-31328 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.
Ubuntu USN Ubuntu USN USN-6422-1 Ring vulnerabilities
Ubuntu USN Ubuntu USN USN-6422-2 Ring vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00363}

epss

{'score': 0.00327}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Nov 4, 2025, 4:10 PM
Reserved
Mar 4, 2023, 12:00 AM
Status
Modified
Published
Mar 14, 2023, 5:15 PM
Modified
Jun 17, 2026, 5:45 AM