CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
78.3%
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.
github.com/pjsip/pjproject/commit/d1c5e4da5bae7f220bc30719888bb389c905c0c5
github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4
github.com/pjsip/pjproject/security/advisories/GHSA-q9cp-8wcq-7pfr
lists.debian.org/debian-lts-announce/2023/04/msg00020.html
lists.debian.org/debian-lts-announce/2023/08/msg00038.html
www.debian.org/security/2023/dsa-5438
www.pjsip.org/pjlib-util/docs/html/group__PJ__DNS__RESOLVER.htm
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
78.3%