Infinite loop in pjsip - CVE-2022-24763

Vulnerability identifier: #VU63094

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-24763

CWE-ID: CWE-835

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop within XML parsing. A remote attacker can consume all available system resources and cause denial of service conditions.

pjsip
Debian Linux
Gentoo Linux
Ubuntu
ring (Ubuntu package)
ring-daemon (Ubuntu package)
net-libs/pjproject
asterisk (Debian package)
jami (Ubuntu package)
jami-daemon (Ubuntu package)

Install updates from vendor's website.

pjsip - update to 2.12.1
ring (Ubuntu package) - addressed in versions Ubuntu Pro, 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1
ring-daemon (Ubuntu package) - addressed in versions Ubuntu Pro, 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1
net-libs/pjproject - update to 2.12.1
asterisk (Debian package) - update to 1:16.28.0~dfsg-0+deb11u1
jami (Ubuntu package) - addressed in versions 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1, 20230206.0~ds1-5ubuntu0.1, 20230206.0~ds2-1.3ubuntu0.1
jami-daemon (Ubuntu package) - addressed in versions 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1, 20230206.0~ds1-5ubuntu0.1, 20230206.0~ds2-1.3ubuntu0.1

• https://github.com/pjsip/pjproject/security/advisories/GHSA-5x45-qp78-g4p4
• https://github.com/pjsip/pjproject/commit/856f87c2e97a27b256482dbe0d748b1194355a21

• Remote code execution in pjproject
• Debian update for asterisk
• Gentoo update for PJSIP
• Ubuntu update for ring
• Ubuntu update for ring