CVE-2022-37434: zlib: heap-based buffer over-read and overflow in inflate() in inflate.c via a large gzip header extra field

Severity: Critical

CVSS Score: 9.8

zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).