CVE-2023-54354

[CVE catalog]

Severity

High · CVSS 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

Jan 1, 2023, 12:00:00 AM UTC

Updated

Aug 25, 2026, 5:17:04 PM UTC

Source

[NVD] · [CVE record]

A flaw was found in Nokogiri, specifically in its bundled libxml2 library when processing XML schemas. An attacker can exploit this by providing a specially crafted XML schema, leading to a NULL pointer dereference. This can cause the application to crash, resulting in a denial of service. nokogiri: libxml2: Nokogiri: Denial of Service via crafted XML schema This is a Moderate denial of service flaw in Nokogiri's bundled libxml2, affecting CRuby implementations that process XML schemas using packaged libraries. A remote attacker could provide a specially crafted XML schema, leading to a NULL pointer dereference and causing the application to crash, thereby impacting service availability. The impact is limited to applications that directly process untrusted XML schemas with the vulnerable Nokogiri configuration. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.