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Ubuntu: (Multiple Advisories) (CVE-2021-37706): Ring vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2021-37706): Ring vulnerabilities

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
12/22/2021
Created
10/11/2023
Added
10/10/2023
Modified
10/25/2023

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 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.

Solution(s)

  • ubuntu-upgrade-jami
  • ubuntu-upgrade-jami-daemon
  • ubuntu-upgrade-ring
  • ubuntu-upgrade-ring-daemon

References

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