Null source pointer passed as an argument to memcpy() function within TIFFReadDirectory() in tif_dirread.c in libtiff versions from 4.0 to 4.3.0 could lead to Denial of Service via crafted TIFF file. For users that compile libtiff from sources, a fix is available with commit 561599c.
{ "vanir_signatures": [ { "id": "CVE-2022-0562-5e6decd3", "signature_type": "Function", "target": { "file": "libtiff/tif_dirread.c", "function": "TIFFReadDirectory" }, "signature_version": "v1", "digest": { "length": 17287.0, "function_hash": "129003738256904974434032312831734533679" }, "deprecated": false, "source": "https://gitlab.com/gitlab-org/build/omnibus-mirror/libtiff@561599c99f987dc32ae110370cfdd7df7975586b" }, { "id": "CVE-2022-0562-acf8b664", "signature_type": "Line", "target": { "file": "libtiff/tif_dirread.c" }, "signature_version": "v1", "digest": { "line_hashes": [ "222657081805446374098817547520940382651", "46343763023096549359691253295778653557", "8490074471616727942160351420981319456", "262687486300517843764821785466064460" ], "threshold": 0.9 }, "deprecated": false, "source": "https://gitlab.com/gitlab-org/build/omnibus-mirror/libtiff@561599c99f987dc32ae110370cfdd7df7975586b" } ] }