🛡️ CVE-2018-25032 — nokogiri

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-787 OSV

8.0

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

Nokogiri affected by zlib's Out-of-bounds Write vulnerability

zlib 1.2.11 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2018-25032 is classified as CWE-787: Out-of-bounds Write. Data is written past the end or before the start of a buffer, corrupting whatever is stored there.

Affected software

CVE-2018-25032 is recorded against 1 package.

nokogiri (fixed in 1.13.4)

Timeline and source

Published on 26 March 2022 and last revised on 4 February 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
www.oracle.com (Web)
www.openwall.com (Web)
www.openwall.com (Web)
www.openwall.com (Web)
www.debian.org (Web)
support.apple.com (Web)
support.apple.com (Web)
support.apple.com (Web)
security.netapp.com (Web)
security.netapp.com (Web)
security.gentoo.org (Web)

CVE-2018-25032 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Alpine Debian Ubuntu

Details

Severity HIGH

CVSS Score 8.0

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE CWE-787

Public Exploit ✅ No

Source OSV

Published 2022-03-26

Updated 2026-08-12

Modified 2026-02-04

Fix URL N/A

Affected Packages

Software	From version	Fixed in
nokogiri	—	1.13.4

References

WEB https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-v6gp-9mmm-c6p5

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2018-25032

WEB https://github.com/madler/zlib/issues/605

WEB https://github.com/madler/zlib/commit/5c44459c3b28a9bd3283aaceab7c615f8020c531

WEB https://www.oracle.com/security-alerts/cpujul2022.html

WEB https://www.openwall.com/lists/oss-security/2022/03/28/3

WEB https://www.openwall.com/lists/oss-security/2022/03/28/1

WEB https://www.openwall.com/lists/oss-security/2022/03/24/1

WEB https://www.debian.org/security/2022/dsa-5111

WEB https://support.apple.com/kb/HT213257

WEB https://support.apple.com/kb/HT213256

WEB https://support.apple.com/kb/HT213255

WEB https://security.netapp.com/advisory/ntap-20220729-0004

WEB https://security.netapp.com/advisory/ntap-20220526-0009

WEB https://security.gentoo.org/glsa/202210-42

WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/XOKFMSNQ5D5WGMALBNBXU3GE442V74WU

WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/VOKNP2L734AEL47NRYGVZIKEFOUBQY5Y

WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/NS2D2GFPFGOJUL4WQ3DUAY7HF4VWQ77F

WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/JZZPTWRYQULAOL3AW7RZJNVZ2UONXCV4

WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/DF62MVMH3QUGMBDCB3DY2ERQ6EBHTADB

WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/DCZFIJBJTZ7CL5QXBFKTQ22Q26VINRUF

WEB https://lists.debian.org/debian-lts-announce/2022/09/msg00023.html

WEB https://lists.debian.org/debian-lts-announce/2022/05/msg00008.html

WEB https://lists.debian.org/debian-lts-announce/2022/04/msg00000.html

WEB https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2018-25032.yml

WEB https://github.com/madler/zlib/compare/v1.2.11...v1.2.12

WEB https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf

WEB http://seclists.org/fulldisclosure/2022/May/33

WEB http://seclists.org/fulldisclosure/2022/May/35

WEB http://seclists.org/fulldisclosure/2022/May/38

WEB http://www.openwall.com/lists/oss-security/2022/03/25/2

WEB http://www.openwall.com/lists/oss-security/2022/03/26/1

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