A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.
{
"github_reviewed_at": "2020-06-16T21:20:04Z",
"github_reviewed": true,
"severity": "HIGH",
"nvd_published_at": null,
"cwe_ids": [
"CWE-476"
]
}