Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XMLGetBuffer, for configurations with a nonzero XMLCONTEXT_BYTES.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23852.json",
"cna_assigner": "mitre"
}