Resource exhaustion in pjsip - CVE-2021-21375
Published: May 4, 2022
Vulnerability identifier: #VU62780
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-21375
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
pjsip
Gentoo Linux
Ubuntu
pjproject (Ubuntu package)
net-libs/pjproject
Gentoo Linux
Ubuntu
pjproject (Ubuntu package)
net-libs/pjproject
How to mitigate CVE-2021-21375
Install updates from vendor's website.
pjsip - update to 2.11
pjproject (Ubuntu package) - addressed in versions 2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1, 2.7.2~dfsg-1ubuntu0.1~esm1
net-libs/pjproject - update to 2.10-r1
pjproject (Ubuntu package) - addressed in versions 2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1, 2.7.2~dfsg-1ubuntu0.1~esm1
net-libs/pjproject - update to 2.10-r1
External References
- https://github.com/pjsip/pjproject/commit/97b3d7addbaa720b7ddb0af9bf6f3e443e664365
- https://github.com/pjsip/pjproject/security/advisories/GHSA-hvq6-f89p-frvp
- https://lists.debian.org/debian-lts-announce/2021/04/msg00023.html
- https://lists.debian.org/debian-lts-announce/2021/05/msg00020.html
- https://security.gentoo.org/glsa/202107-42