Uncontrolled Recursion in Loofah - CVE-2022-23516

Vulnerability identifier: #VU70330

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-2022-23516

CWE-ID: CWE-674

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 uncontrolled recursion when handling CDATA sections. A remote attacker can pass specially crafted data to the application and consume excessive CPU resources.

Loofah
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Manager Server
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux
SUSE Linux Enterprise Server 15 SP2 Business Critical Linux
SUSE Linux Enterprise Server 15 SP3 Business Critical Linux
openSUSE Leap
Fedora
ruby2.5-rubygem-loofah
ruby2.5-rubygem-loofah-doc
ruby2.5-rubygem-loofah-testsuite
rubygem-loofah
Red Hat Satellite

Install updates from vendor's website.

Loofah - update to 2.19.1
ruby2.5-rubygem-loofah - update to 2.2.2-150000.4.9.1
ruby2.5-rubygem-loofah-doc - update to 2.2.2-150000.4.9.1
ruby2.5-rubygem-loofah-testsuite - update to 2.2.2-150000.4.9.1
rubygem-loofah - update to 2.22.0-1.fc40
Red Hat Satellite - update to 6.13

• https://github.com/flavorjones/loofah/releases/tag/v2.19.1
• https://github.com/flavorjones/loofah/security/advisories/GHSA-3x8r-x6xp-q4vm

• Multiple vulnerabilities in Loofah
• SUSE update for rubygem-loofah
• Multiple vulnerabilities in Red Hat Satellite 6.13
• Fedora 40 update for rubygem-loofah