CVE-2022-23516 — Uncontrolled Recursion in Project Loofah

CWE-674 — Uncontrolled Recursion6 documents5 sources
Severity
7.5HIGHNVD
EPSS
0.0%
top 87.85%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Loofah Project LoofahDebian Ruby-loofahFlavorjones Loofah
Timeline
PublishedDec 14

Description

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Loofah >= 2.2.0, < 2.19.1 uses recursion for sanitizing CDATA sections, making it susceptible to stack exhaustion and raising a SystemStackError exception. This may lead to a denial of service through CPU resource consumption. This issue is patched in version 2.19.1. Users who are unable to upgrade may be able to mitigate this vulnerability by limiting the length of the strin…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶debiandebian/ruby-loofah< ruby-loofah 2.19.1-1 (bookworm)
▶NVDloofah_project/loofah2.2.0 — 2.19.1
▶RubyGemsloofah_project/loofah2.2.0 — 2.19.1
▶CVEListV5flavorjones/loofah>= 2.2.0, < 2.19.1

🔴Vulnerability Details

3
OSV
CVE-2022-23516: Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri↗2022-12-14
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OSV
Uncontrolled Recursion in Loofah↗2022-12-13
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GHSA
Uncontrolled Recursion in Loofah↗2022-12-13
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📋Vendor Advisories

2
Red Hat
rubygem-loofah: Uncontrolled Recursion leading to denial of service↗2022-12-13
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Debian
CVE-2022-23516: ruby-loofah - Loofah is a general library for manipulating and transforming HTML/XML documents...↗2022
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