SB2021072608 - Asterisk update for pjsip
Published: July 26, 2021
Security Bulletin ID
SB2021072608
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Uncaught Exception (CVE-ID: CVE-2021-32686)
CWE-ID: CWE-248 - Uncaught Exception
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The
vulnerability exists due to uncaught exception in pjsip when processing TLS handshake. A remote
attacker can initiate TLS connection with the software and then destroy
the socket during handshake, causing the application to crash.
Remediation
Install update from vendor's website.