CVE-2021-43845

PJSIP is a free and open source multimedia communication library. In version 2.11.1 and prior, if incoming RTCP XR message contain block, the data field is not checked against the received packet size, potentially resulting in an out-of-bound read access. This affects all users that use PJMEDIA and RTCP XR. A malicious actor can send a RTCP XR message with an invalid packet size.

CVSS v3.0 9.1 CRITICAL
CVSS v2.0 6.4 MEDIUM

9.1^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

6.4^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:P

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/pjsip/pjproject/commit/f74c1fc22b760d2a24369aa72c74c4a9ab985859	Patch Third Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-r374-qrwv-86hh	Patch Third Party Advisory
https://github.com/pjsip/pjproject/pull/2924	Exploit Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202210-37	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html	Mailing List Third Party Advisory
https://www.debian.org/security/2022/dsa-5285	Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*
	cpe:2.3:o:debian:debian_linux:11.0:::::::*

Information

Published : 2021-12-27 10:15

Updated : 2023-01-27 11:56

NVD link : CVE-2021-43845

Mitre link : CVE-2021-43845

JSON object : View

CWE

CWE-125

Out-of-bounds Read

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Products Affected

debian

debian_linux

teluu

pjsip

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