5.9

CVE-2021-32686

Denial of Service in PJSIP

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 PJSIP before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
TeluuPjsip Version < 2.11.1
DebianDebian Linux Version9.0
DebianDebian Linux Version11.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2.08% 0.791
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.9 2.2 3.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 4.3 8.6 2.9
AV:N/AC:M/Au:N/C:N/I:N/A:P
security-advisories@github.com 5.9 2.2 3.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

https://github.com/pjsip/pjproject/commit/d5f95aa066f878b0aef6a64e60b61e8626e664cd
Patch
Third Party Advisory
https://github.com/pjsip/pjproject/pull/2716
Patch
Third Party Advisory
https://github.com/pjsip/pjproject/releases/tag/2.11.1
Third Party Advisory
Release Notes
https://github.com/pjsip/pjproject/security/advisories/GHSA-cv8x-p47p-99wr
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html
Third Party Advisory
Mailing List
https://security.gentoo.org/glsa/202210-37
Third Party Advisory
https://www.debian.org/security/2021/dsa-4999
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html