CVE-2021-43845: high-severity vulnerability in pjsip pjproject
Prevent out-of-bounds read in PJSIP
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.2epss 3.9%
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Affected products
pjsip · pjprojectRelated CVEs — pjsip pjproject
In the same product, most dangerous first.
CVE-2021-37706HIGHPotential integer underflow upon receiving STUN message in PJSIPEPSS 4.9%CVE-2022-21723CRITICALOut-of-bounds read in multipart parsing in PJSIPEPSS 4.4%CVE-2022-23608HIGHUse after free in PJSIPEPSS 4.0%CVE-2022-24764HIGHStack buffer overflow in pjprojectEPSS 2.4%CVE-2022-21722CRITICALPotential out-of-bound read during RTP/RTCP parsing in PJSIPEPSS 2.3%CVE-2023-27585HIGHCVE-2023-27585EPSS 2.3%
References
https://github.com/pjsip/pjproject/commit/f74c1fc22b760d2a24369aa72c74c4a9ab985859https://github.com/pjsip/pjproject/pull/2924https://github.com/pjsip/pjproject/security/advisories/GHSA-r374-qrwv-86hhhttps://lists.debian.org/debian-lts-announce/2022/03/msg00035.htmlhttps://lists.debian.org/debian-lts-announce/2022/11/msg00021.htmlhttps://lists.debian.org/debian-lts-announce/2023/08/msg00038.htmlhttps://lists.debian.org/debian-lts-announce/2024/09/msg00030.htmlhttps://security.gentoo.org/glsa/202210-37https://www.debian.org/security/2022/dsa-5285