CVE Vulnerability

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.

6.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

Scope

9.1 /10

CVSS v3.0 : CRITICAL

V3 Legend

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

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
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
Configurations

Configuration 1

cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*
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 06:15

Updated : 2023-01-27 07:56

NVD link : CVE-2021-43845

Mitre link : CVE-2021-43845

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read