CVE-2022-21723
high-risk
Published 2022-01-27
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.
Do I need to act?
-
0.47% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.1/10
Critical
NETWORK
/ LOW complexity
Affected Products (17)
Certified Asterisk
Certified Asterisk
Certified Asterisk
Certified Asterisk
Certified Asterisk
Certified Asterisk
Certified Asterisk
Certified Asterisk
Certified Asterisk
Certified Asterisk
Certified Asterisk
Certified Asterisk
Certified Asterisk
References (19)
Third Party Advisory
http://packetstormsecurity.com/files/166227/Asterisk-Project-Security-Advisory-A...
Mailing List
http://seclists.org/fulldisclosure/2022/Mar/2
Third Party Advisory
https://security.gentoo.org/glsa/202210-37
Third Party Advisory
https://www.debian.org/security/2022/dsa-5285
Third Party Advisory
http://packetstormsecurity.com/files/166227/Asterisk-Project-Security-Advisory-A...
Mailing List
http://seclists.org/fulldisclosure/2022/Mar/2
Third Party Advisory
https://security.gentoo.org/glsa/202210-37
Third Party Advisory
https://www.debian.org/security/2022/dsa-5285
52
/ 100
high-risk
Severity
31/34 · Critical
Exploitability
2/34 · Minimal
Exposure
19/34 · Moderate