CVE-2019-18197
Nokogiri affected by libxslt Use of Uninitialized Resource/Use After Free vulnerability
Summary
Remediation
Upgrade to the fixed version using your package manager.
gem install nokogiri -v 1.10.5
After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.
Affected Packages (1)
| Package | Ecosystem | Affected | Fixed In |
|---|---|---|---|
| nokogiri | rubygems | 1.0.0, 1.0.1, 1.0.2, 1.0.3 (+110 more) | 1.10.5 |
Vulnerability Classification
Common Weakness Enumeration (CWE) identifiers for this vulnerability type.
- CWE-416Use After FreeMITRE
- CWE-908
CVSS Score Breakdown
What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-18197ADVISORY
- https://github.com/sparklemotion/nokogiri/issues/1943WEB
- https://access.redhat.com/errata/RHSA-2020:0514WEB
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15746WEB
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15768WEB
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15914WEB
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2019-18197.ymlWEB
- https://github.com/sparklemotion/nokogiriPACKAGE
- https://github.com/sparklemotion/nokogiri/blob/01ab95f3e37429ed8d3b380a8d2f73902eb325d9/CHANGELOG.md?plain=1#L934WEB
- https://gitlab.gnome.org/GNOME/libxslt/commit/2232473733b7313d67de8836ea3b29eec6e8e285WEB
- https://lists.debian.org/debian-lts-announce/2019/10/msg00037.htmlWEB
- https://security.netapp.com/advisory/ntap-20191031-0004WEB
- https://security.netapp.com/advisory/ntap-20200416-0004WEB
- https://usn.ubuntu.com/4164-1WEB
- https://www.oracle.com/security-alerts/cpuapr2020.htmlWEB
- https://lists.opensuse.org/opensuse-security-announce/2020-02/msg00010.htmlWEB
- https://lists.opensuse.org/opensuse-security-announce/2020-02/msg00015.htmlWEB
- https://lists.opensuse.org/opensuse-security-announce/2020-02/msg00025.htmlWEB
- https://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.htmlWEB
- https://www.openwall.com/lists/oss-security/2019/11/17/2WEB
Frequently Asked Questions
- What is CVE-2019-18197?
- Nokogiri affected by libxslt Use of Uninitialized Resource/Use After Free vulnerability This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.5/10).
- How do I check if my project is affected by CVE-2019-18197?
- CVE-2019-18197 affects nokogiri. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2019-18197 and 200,000+ other known vulnerabilities.
Severity & Exploitability
High exploitability or significant impact. Prioritize remediation within days.
Also Known As
Related CVEs
- CVE-2021-41098HIGH
Improper Restriction of XML External Entity Reference (XXE) in Nokogiri on JRuby
- CVE-2021-30560HIGH
Nokogiri has vulnerable dependencies on libxml2 and libxslt
- CVE-2012-6685HIGH
Nokogiri is vulnerable to XML External Entity (XXE) attack
- CVE-2020-7595HIGH
libxml as used in Nokogiri has an infinite loop in a certain end-of-file situation
- CVE-2015-8806HIGH
Denial of service or RCE from libxml2 and libxslt
- CVE-2026-57235MEDIUM
Nokogiri: Possible Out-of-Bounds Read in `Nokogiri::XML::NodeSet#[]`
- CVE-2013-6460MEDIUM
Nokogiri vulnerable to DoS while parsing XML documents
- CVE-2026-57236LOW
Nokogiri: Possible Use-After-Free when `Nokogiri::XML::Document#encoding=` raises an exception
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