Rapid7 Vulnerability & Exploit Database

Alpine Linux: CVE-2021-43804: Out-of-bounds Read

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Alpine Linux: CVE-2021-43804: Out-of-bounds Read

Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
12/22/2021
Created
08/23/2024
Added
08/22/2024
Modified
10/02/2024

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 RTCP BYE message contains a reason's length, this declared length is not checked against the actual received packet size, potentially resulting in an out-of-bound read access. This issue affects all users that use PJMEDIA and RTCP. A malicious actor can send a RTCP BYE message with an invalid reason length. Users are advised to upgrade as soon as possible. There are no known workarounds.

Solution(s)

  • alpine-linux-upgrade-pjproject

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;