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libxml2

An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c.

CVE-2024-34459 is a buffer over-read vulnerability identified in the xmllint utility, part of the widely used libxml2 XML parsing library. The issue specifically occurs when xmllint is invoked with the --htmlout option to format error messages. The vulnerability resides in the xmlHTMLPrintFileContext function within xmllint.c, where improper handling of buffer boundaries during error message formatting leads to reading beyond the allocated buffer. This flaw is classified under CWE-122 (Heap-based Buffer Over-read). The vulnerability affects libxml2 versions prior to 2.11.8 and 2.12.x versions before 2.12.7. Exploitation requires no privileges or user interaction and can be triggered remotely by supplying crafted XML input that causes xmllint to generate error messages processed with the --htmlout flag. The buffer over-read can lead to disclosure of sensitive memory contents, impacting confidentiality. Although no exploits have been reported in the wild, the vulnerability's characteristics and the widespread deployment of libxml2 in many Linux distributions, software applications, and embedded systems make it a significant concern. The CVSS v3.1 base score is 7.5, reflecting high severity due to network attack vector, low attack complexity, no privileges required, no user interaction, and a high impact on confidentiality without affecting integrity or availability. The vulnerability underscores the importance of updating to patched versions 2.11.8 or 2.12.7 and beyond to mitigate potential data leakage risks.

Detailed information about CVE-2024-34459: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2024-34459: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2024-34459: n/a

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