feat(checker): add fetchmail checker (#5387)

Signed-off-by: Fabrice Fontaine <[email protected]>

Author: ffontaine

cve_bin_tool/checkers/__init__.py

@@ -112,6 +112,7 @@
     "faad2",
     "fastd",
     "fastnetmon",
+    "fetchmail",
     "ffmpeg",
     "file",
     "firefox",

cve_bin_tool/checkers/fetchmail.py

@@ -0,0 +1,22 @@
+# Copyright (C) 2025 Orange
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+
+"""
+CVE checker for fetchamil
+
+https://www.cvedetails.com/product/9667/Fetchmail-Fetchmail.html?vendor_id=5710
+
+"""
+from __future__ import annotations
+
+from cve_bin_tool.checkers import Checker
+
+
+class FetchmailChecker(Checker):
+    CONTAINS_PATTERNS: list[str] = []
+    FILENAME_PATTERNS: list[str] = []
+    VERSION_PATTERNS = [
+        r"([0-9]+\.[0-9]+\.[0-9]+)[A-Za-z0-9/%():@=>' \"\.\-\t\r\n]*fetchmail"
+    ]
+    VENDOR_PRODUCT = [("fetchmail", "fetchmail")]

test/condensed-downloads/fetchmail-6.4.1-r1.apk.tar.gz

@@ -0,0 +1,31 @@
+# Copyright (C) 2025 Orange
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+mapping_test_data = [
+    {
+        "product": "fetchmail",
+        "version": "6.4.1",
+        "version_strings": ["6.4.1\nfetchmail"],
+    }
+]
+package_test_data = [
+    {
+        "url": "https://rpmfind.net/linux/fedora/linux/development/rawhide/Everything/aarch64/os/Packages/f/",
+        "package_name": "fetchmail-6.5.4-2.fc43.aarch64.rpm",
+        "product": "fetchmail",
+        "version": "6.5.4",
+    },
+    {
+        "url": "http://ftp.debian.org/debian/pool/main/f/fetchmail/",
+        "package_name": "fetchmail_6.4.16-4+deb11u1_amd64.deb",
+        "product": "fetchmail",
+        "version": "6.4.16",
+    },
+    {
+        "url": "https://dl-cdn.alpinelinux.org/alpine/v3.11/main/x86_64/",
+        "package_name": "fetchmail-6.4.1-r1.apk",
+        "product": "fetchmail",
+        "version": "6.4.1",
+        "other_products": ["gcc"],
+    },
+]