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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2021-37706

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 affected versions if the incoming STUN message contains an ERROR-CODE attribute, the header length is not checked before performing a subtraction operation, potentially resulting in an integer underflow scenario. This issue affects all users that use STUN. A malicious actor located within the victim’s network may forge and send a specially crafted UDP (STUN) message that could remotely execute arbitrary code on the victim’s machine. Users are advised to upgrade as soon as possible. There are no known workarounds.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 33.9%
CVSS Severity
CVSS v3 Score 7.3
CVSS v2 Score 9.3
References
Products affected by CVE-2021-37706
  • Asterisk » Certified Asterisk » Version: 13.13.0
    cpe:2.3:a:asterisk:certified_asterisk:13.13.0
  • Asterisk » Certified Asterisk » Version: 16.8.0
    cpe:2.3:a:asterisk:certified_asterisk:16.8.0
  • Sangoma » Asterisk » Version: 16.0.0
    cpe:2.3:a:sangoma:asterisk:16.0.0
  • Sangoma » Asterisk » Version: 16.10.0
    cpe:2.3:a:sangoma:asterisk:16.10.0
  • Sangoma » Asterisk » Version: 16.11.0
    cpe:2.3:a:sangoma:asterisk:16.11.0
  • Sangoma » Asterisk » Version: 16.12.0
    cpe:2.3:a:sangoma:asterisk:16.12.0
  • Sangoma » Asterisk » Version: 16.14.0
    cpe:2.3:a:sangoma:asterisk:16.14.0
  • Sangoma » Asterisk » Version: 16.14.1
    cpe:2.3:a:sangoma:asterisk:16.14.1
  • Sangoma » Asterisk » Version: 16.15.0
    cpe:2.3:a:sangoma:asterisk:16.15.0
  • Sangoma » Asterisk » Version: 16.16.0
    cpe:2.3:a:sangoma:asterisk:16.16.0
  • Sangoma » Asterisk » Version: 16.16.1
    cpe:2.3:a:sangoma:asterisk:16.16.1
  • Sangoma » Asterisk » Version: 16.5.0
    cpe:2.3:a:sangoma:asterisk:16.5.0
  • Sangoma » Asterisk » Version: 16.6.0
    cpe:2.3:a:sangoma:asterisk:16.6.0
  • Sangoma » Asterisk » Version: 16.7.0
    cpe:2.3:a:sangoma:asterisk:16.7.0
  • Sangoma » Asterisk » Version: 16.8.0
    cpe:2.3:a:sangoma:asterisk:16.8.0
  • Sangoma » Asterisk » Version: 16.9.0
    cpe:2.3:a:sangoma:asterisk:16.9.0
  • Sangoma » Asterisk » Version: 18.0.0
    cpe:2.3:a:sangoma:asterisk:18.0.0
  • Sangoma » Asterisk » Version: 18.0.1
    cpe:2.3:a:sangoma:asterisk:18.0.1
  • Sangoma » Asterisk » Version: 18.1.0
    cpe:2.3:a:sangoma:asterisk:18.1.0
  • Sangoma » Asterisk » Version: 18.1.1
    cpe:2.3:a:sangoma:asterisk:18.1.1
  • Sangoma » Asterisk » Version: 18.10.0
    cpe:2.3:a:sangoma:asterisk:18.10.0
  • Sangoma » Asterisk » Version: 18.2.0
    cpe:2.3:a:sangoma:asterisk:18.2.0
  • Sangoma » Asterisk » Version: 18.2.1
    cpe:2.3:a:sangoma:asterisk:18.2.1
  • Sangoma » Asterisk » Version: 18.2.2
    cpe:2.3:a:sangoma:asterisk:18.2.2
  • Sangoma » Asterisk » Version: 18.3.0
    cpe:2.3:a:sangoma:asterisk:18.3.0
  • Sangoma » Asterisk » Version: 18.4.0
    cpe:2.3:a:sangoma:asterisk:18.4.0
  • Sangoma » Asterisk » Version: 18.5.0
    cpe:2.3:a:sangoma:asterisk:18.5.0
  • Sangoma » Asterisk » Version: 18.5.1
    cpe:2.3:a:sangoma:asterisk:18.5.1
  • Sangoma » Asterisk » Version: 18.6.0
    cpe:2.3:a:sangoma:asterisk:18.6.0
  • Sangoma » Asterisk » Version: 18.7.0
    cpe:2.3:a:sangoma:asterisk:18.7.0
  • Sangoma » Asterisk » Version: 18.7.1
    cpe:2.3:a:sangoma:asterisk:18.7.1
  • Sangoma » Asterisk » Version: 18.8.0
    cpe:2.3:a:sangoma:asterisk:18.8.0
  • Sangoma » Asterisk » Version: 18.9.0
    cpe:2.3:a:sangoma:asterisk:18.9.0
  • Sangoma » Asterisk » Version: 19.0.0
    cpe:2.3:a:sangoma:asterisk:19.0.0
  • Sangoma » Asterisk » Version: 19.1.0
    cpe:2.3:a:sangoma:asterisk:19.1.0
  • Sangoma » Asterisk » Version: 19.2.0
    cpe:2.3:a:sangoma:asterisk:19.2.0
  • Teluu » Pjsip » Version: 0.5.0.1
    cpe:2.3:a:teluu:pjsip:0.5.0.1
  • Teluu » Pjsip » Version: 0.5.10
    cpe:2.3:a:teluu:pjsip:0.5.10
  • Teluu » Pjsip » Version: 0.5.10.1
    cpe:2.3:a:teluu:pjsip:0.5.10.1
  • Teluu » Pjsip » Version: 0.5.10.2
    cpe:2.3:a:teluu:pjsip:0.5.10.2
  • Teluu » Pjsip » Version: 0.5.10.3
    cpe:2.3:a:teluu:pjsip:0.5.10.3
  • Teluu » Pjsip » Version: 0.5.10.4
    cpe:2.3:a:teluu:pjsip:0.5.10.4
  • Teluu » Pjsip » Version: 0.5.2
    cpe:2.3:a:teluu:pjsip:0.5.2
  • Teluu » Pjsip » Version: 0.5.3
    cpe:2.3:a:teluu:pjsip:0.5.3
  • Teluu » Pjsip » Version: 0.5.4
    cpe:2.3:a:teluu:pjsip:0.5.4
  • Teluu » Pjsip » Version: 0.5.5.1
    cpe:2.3:a:teluu:pjsip:0.5.5.1
  • Teluu » Pjsip » Version: 0.5.6
    cpe:2.3:a:teluu:pjsip:0.5.6
  • Teluu » Pjsip » Version: 0.5.6.1
    cpe:2.3:a:teluu:pjsip:0.5.6.1
  • Teluu » Pjsip » Version: 0.5.7
    cpe:2.3:a:teluu:pjsip:0.5.7
  • Teluu » Pjsip » Version: 0.5.8
    cpe:2.3:a:teluu:pjsip:0.5.8
  • Teluu » Pjsip » Version: 0.5.9
    cpe:2.3:a:teluu:pjsip:0.5.9
  • Teluu » Pjsip » Version: 0.7.0
    cpe:2.3:a:teluu:pjsip:0.7.0
  • Teluu » Pjsip » Version: 0.8.0
    cpe:2.3:a:teluu:pjsip:0.8.0
  • Teluu » Pjsip » Version: 0.9.0
    cpe:2.3:a:teluu:pjsip:0.9.0
  • Teluu » Pjsip » Version: 1.0
    cpe:2.3:a:teluu:pjsip:1.0
  • Teluu » Pjsip » Version: 1.0.1
    cpe:2.3:a:teluu:pjsip:1.0.1
  • Teluu » Pjsip » Version: 1.0.2
    cpe:2.3:a:teluu:pjsip:1.0.2
  • Teluu » Pjsip » Version: 1.0.3
    cpe:2.3:a:teluu:pjsip:1.0.3
  • Teluu » Pjsip » Version: 1.1
    cpe:2.3:a:teluu:pjsip:1.1
  • Teluu » Pjsip » Version: 1.10
    cpe:2.3:a:teluu:pjsip:1.10
  • Teluu » Pjsip » Version: 1.12
    cpe:2.3:a:teluu:pjsip:1.12
  • Teluu » Pjsip » Version: 1.14
    cpe:2.3:a:teluu:pjsip:1.14
  • Teluu » Pjsip » Version: 1.14.2
    cpe:2.3:a:teluu:pjsip:1.14.2
  • Teluu » Pjsip » Version: 1.16
    cpe:2.3:a:teluu:pjsip:1.16
  • Teluu » Pjsip » Version: 1.2
    cpe:2.3:a:teluu:pjsip:1.2
  • Teluu » Pjsip » Version: 1.3
    cpe:2.3:a:teluu:pjsip:1.3
  • Teluu » Pjsip » Version: 1.4
    cpe:2.3:a:teluu:pjsip:1.4
  • Teluu » Pjsip » Version: 1.4.5
    cpe:2.3:a:teluu:pjsip:1.4.5
  • Teluu » Pjsip » Version: 1.5
    cpe:2.3:a:teluu:pjsip:1.5
  • Teluu » Pjsip » Version: 1.5.5
    cpe:2.3:a:teluu:pjsip:1.5.5
  • Teluu » Pjsip » Version: 1.6
    cpe:2.3:a:teluu:pjsip:1.6
  • Teluu » Pjsip » Version: 1.7
    cpe:2.3:a:teluu:pjsip:1.7
  • Teluu » Pjsip » Version: 1.8
    cpe:2.3:a:teluu:pjsip:1.8
  • Teluu » Pjsip » Version: 1.8.10
    cpe:2.3:a:teluu:pjsip:1.8.10
  • Teluu » Pjsip » Version: 1.8.5
    cpe:2.3:a:teluu:pjsip:1.8.5
  • Teluu » Pjsip » Version: 2.0
    cpe:2.3:a:teluu:pjsip:2.0
  • Teluu » Pjsip » Version: 2.0.1
    cpe:2.3:a:teluu:pjsip:2.0.1
  • Teluu » Pjsip » Version: 2.1
    cpe:2.3:a:teluu:pjsip:2.1
  • Teluu » Pjsip » Version: 2.10
    cpe:2.3:a:teluu:pjsip:2.10
  • Teluu » Pjsip » Version: 2.11
    cpe:2.3:a:teluu:pjsip:2.11
  • Teluu » Pjsip » Version: 2.11.1
    cpe:2.3:a:teluu:pjsip:2.11.1
  • Teluu » Pjsip » Version: 2.2
    cpe:2.3:a:teluu:pjsip:2.2
  • Teluu » Pjsip » Version: 2.2.1
    cpe:2.3:a:teluu:pjsip:2.2.1
  • Teluu » Pjsip » Version: 2.3
    cpe:2.3:a:teluu:pjsip:2.3
  • Teluu » Pjsip » Version: 2.4
    cpe:2.3:a:teluu:pjsip:2.4
  • Teluu » Pjsip » Version: 2.4.5
    cpe:2.3:a:teluu:pjsip:2.4.5
  • Teluu » Pjsip » Version: 2.5
    cpe:2.3:a:teluu:pjsip:2.5
  • Teluu » Pjsip » Version: 2.5.1
    cpe:2.3:a:teluu:pjsip:2.5.1
  • Teluu » Pjsip » Version: 2.5.5
    cpe:2.3:a:teluu:pjsip:2.5.5
  • Teluu » Pjsip » Version: 2.6
    cpe:2.3:a:teluu:pjsip:2.6
  • Teluu » Pjsip » Version: 2.7
    cpe:2.3:a:teluu:pjsip:2.7
  • Teluu » Pjsip » Version: 2.7.1
    cpe:2.3:a:teluu:pjsip:2.7.1
  • Teluu » Pjsip » Version: 2.7.2
    cpe:2.3:a:teluu:pjsip:2.7.2
  • Teluu » Pjsip » Version: 2.8
    cpe:2.3:a:teluu:pjsip:2.8
  • Teluu » Pjsip » Version: 2.9
    cpe:2.3:a:teluu:pjsip:2.9
  • Debian » Debian Linux » Version: 10.0
    cpe:2.3:o:debian:debian_linux:10.0
  • Debian » Debian Linux » Version: 9.0
    cpe:2.3:o:debian:debian_linux:9.0


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