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CVE-2022-24836

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Date: April 10, 2022

Nokogiri is an open source XML and HTML library for Ruby. Nokogiri `< v1.13.4` contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to detect encoding in HTML documents. Users are advised to upgrade to Nokogiri `>= 1.13.4`. There are no known workarounds for this issue.

Language: Ruby

Severity Score

Related Resources (19)

https://support.apple.com/kb/HT213532
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OUPLBUZVM4WPFSXBEP2JS3R6LMKRTLFC
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6DHCOWMA5PQTIQIMDENA7R2Y5BDYAIYM
http://seclists.org/fulldisclosure/2022/Dec/23
https://lists.debian.org/debian-lts-announce/2022/10/msg00018.html
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2022-24836.yml
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OUPLBUZVM4WPFSXBEP2JS3R6LMKRTLFC/
https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.4
https://groups.google.com/g/ruby-security-ann/c/vX7qSjsvWis/m/TJWN4oOKBwAJ?utm_medium=email&utm_source=footer
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XMDCWRQXJQ3TFSETPCEFMQ6RR6ME5UA3
https://security.gentoo.org/glsa/202208-29
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XMDCWRQXJQ3TFSETPCEFMQ6RR6ME5UA3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6DHCOWMA5PQTIQIMDENA7R2Y5BDYAIYM/
https://lists.debian.org/debian-lts-announce/2022/05/msg00013.html
https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-crjr-9rc5-ghw8
https://nvd.nist.gov/vuln/detail/CVE-2022-24836
https://github.com/sparklemotion/nokogiri
https://github.com/sparklemotion/nokogiri/commit/e444525ef1634b675cd1cf52d39f4320ef0aecfd
https://www.mend.io/vulnerability-database/CVE-2022-24836

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Inefficient Regular Expression Complexity

CWE-1333

Top Fix

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Upgrade Version

Upgrade to version nokogiri - 1.13.4

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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