GHSA-xqcq-j8w9-3pxv: 
Java vulnerability analysis and mitigation

GHSA-xqcq-j8w9-3pxv affects the Jettison library, specifically version 1.1-tencyle-2.1.0 of com.tencyle.fixes:org.codehaus.jettison--jettison package. The vulnerability was discovered through OSS-Fuzz findings and was publicly disclosed with a moderate severity rating (CVSS score of 6.5). The issue affects the parser component when processing untrusted XML or JSON data (GitHub Advisory).

The vulnerability is characterized by a stack overflow condition that occurs when parsing untrusted input. The issue has been assigned a CVSS v3.1 base score of 6.5 (Moderate) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. The vulnerability is classified under CWE-121 (Stack-based Buffer Overflow) and CWE-787 (Out-of-bounds Write) (NVD CVE).

When exploited, this vulnerability can lead to Denial of Service (DoS) attacks. If the parser is running on user-supplied input, an attacker can provide specially crafted content that causes the parser to crash through a stack overflow condition, potentially making the service unavailable (GitHub Advisory, Debian Security).

The vulnerability was addressed in Jettison version 1.5.1, which includes fixes for stack overflow issues on malformed JSON and prevents infinite loops when comments are not properly terminated (Jettison Release). For Debian systems, the fix was backported to version 1.4.0-1+deb10u1 for Debian 10 Buster (Debian LTS).