Critical severity · published Jan 27, 2022
CVE-2022-21723
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE
9.1
CVSS
4.4%
EPSS
No
On KEV
Description
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In versions 2.11.1 and prior, parsing an incoming SIP message that contains a malformed multipart can potentially cause out-of-bound read access. This issue affects all PJSIP users that accept SIP multipart. The patch is available as commit in the `master` branch. There are no known workarounds.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.4% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Asterisk · Sangoma
16.0.0 before 16.24.1; 18.0.0 before 18.10.1; 19.0.0 before 19.2.1 · source: NVD
CA
Certified Asterisk · Asterisk
16.8.0; 16.8.0; 16.8.0; 16.8.0; 16.8.0; 16.8.0; +7 more · source: NVD
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
PJ
Pjsip · Teluu
through 2.11.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-21723
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-21723
Third Party Advisory
http://packetstormsecurity.com/files/166227/Asterisk-Project-Security-Advisory-AST-2022-006.html
Mailing List
http://seclists.org/fulldisclosure/2022/Mar/2
Patch
https://github.com/pjsip/pjproject/commit/077b465c33f0aec05a49cd2ca456f9a1b112e896
Patch
https://github.com/pjsip/pjproject/security/advisories/GHSA-7fw8-54cv-r7pm
Mailing List
https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html
Mailing List
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
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