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Debian: CVE-2021-37706: pjproject, ring -- security update

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Debian: CVE-2021-37706: pjproject, ring -- security update

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
12/22/2021
Created
03/30/2022
Added
03/29/2022
Modified
03/29/2022

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)

  • debian-upgrade-pjproject
  • debian-upgrade-ring

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