libImaging/TiffDecode.c in Pillow before 6.2.2 has a TIFF decoding integer overflow, related to realloc.
{
    "github_reviewed_at": "2021-11-03T17:23:34Z",
    "severity": "CRITICAL",
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-190"
    ],
    "nvd_published_at": "2020-01-03T01:15:00Z"
}