Critical severity · published Jan 27, 2022
CVE-2022-21722
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
2.3%
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 version 2.11.1 and prior, there are various cases where it is possible that certain incoming RTP/RTCP packets can potentially cause out-of-bound read access. This issue affects all users that use PJMEDIA and accept incoming RTP/RTCP. A patch is available as a 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)2.3% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
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-2022-21722
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-21722
Patch
https://github.com/pjsip/pjproject/commit/22af44e68a0c7d190ac1e25075e1382f77e9397a
Patch
https://github.com/pjsip/pjproject/security/advisories/GHSA-m66q-q64c-hv36
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
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
Third Party Advisory
https://security.gentoo.org/glsa/202210-37
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