Bug 2178839 (CVE-2023-27585)

Summary:	CVE-2023-27585 pjsip: buffer overflow vulnerability
Product:	[Other] Security Response	Reporter:	Patrick Del Bello <pdelbell>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-03-16 01:02:53 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2178841, 2178840
Bug Blocks:

Description Patrick Del Bello 2023-03-15 20:59:15 UTC

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. 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.

https://github.com/pjsip/pjproject/commit/d1c5e4da5bae7f220bc30719888bb389c905c0c5
https://www.pjsip.org/pjlib-util/docs/html/group__PJ__DNS__RESOLVER.htm
https://github.com/pjsip/pjproject/security/advisories/GHSA-q9cp-8wcq-7pfr
https://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4

Comment 1 Patrick Del Bello 2023-03-15 20:59:30 UTC

Created pjproject tracking bugs for this issue:

Affects: epel-all [bug 2178841]
Affects: fedora-all [bug 2178840]

Comment 2 Product Security DevOps Team 2023-03-16 01:02:51 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.