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.
Metrics
Affected Vendors & Products
Advisories
Source | ID | Title |
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DLA-2962-1 | pjproject security update |
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DLA-3194-1 | asterisk security update |
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DLA-3549-1 | ring security update |
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DLA-3887-1 | ring security update |
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DSA-5285-1 | asterisk security update |
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EUVD-2021-24195 | 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. |
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USN-6422-1 | Ring vulnerabilities |
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USN-6422-2 | Ring vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.

Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2024-08-04T01:23:01.503Z
Reserved: 2021-07-29T00:00:00
Link: CVE-2021-37706

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Status : Modified
Published: 2021-12-22T18:15:07.487
Modified: 2024-11-21T06:15:45.227
Link: CVE-2021-37706

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