CVE-2023-54354
CVE-2023-54354
8.7
HighPublished:
Last updated:
Source:disclosure@vulncheck.com
Analyzed
Weakness (CWE)
CVSS Vector
v4.0- Attack Vector
- Network
- Attack Complexity
- Low
- Attack Requirements
- None
- Privileges Required
- None
- User Interaction
- None
- Confidentiality (Vulnerable)
- None
- Integrity (Vulnerable)
- None
- Availability (Vulnerable)
- High
- Confidentiality (Subsequent)
- None
- Integrity (Subsequent)
- None
- Availability (Subsequent)
- None
Description
Nokogiri before 1.14.3 (CRuby implementation only, when using the packaged libxml2) bundles libxml2 v2.10.3, which is vulnerable to NULL pointer dereferences in XML Schema processing (xmlSchemaFixupComplexType, CVE-2023-28484, and xmlSchemaCheckCOSSTDerivedOK). An attacker who supplies a crafted/malformed XML schema can cause libxml2 to dereference a NULL pointer and potentially segfault, resulting in a denial of service. Nokogiri 1.14.3 upgrades the packaged libxml2 to v2.10.4 to resolve these issues.
References
disclosure@vulncheck.com
https://github.com/GNOME/libxml2/commit/09a2dd453007f9c7205274623acdd73747c22d64disclosure@vulncheck.com
https://github.com/GNOME/libxml2/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6disclosure@vulncheck.com
https://github.com/GNOME/libxml2/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4fdisclosure@vulncheck.com
https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-pxvg-2qj5-37jqdisclosure@vulncheck.com
https://www.vulncheck.com/advisories/nokogiri-before-null-pointer-dereference-via-libxml2