{"id":"CVE-2024-55581","aliases":["DEBIAN-CVE-2024-55581","DLA-4080-1","EUVD-2025-5281","GHSA-6pc8-5263-hvgq","UBUNTU-CVE-2024-55581"],"status":"published","title":"When AdaCore Ada Web Server 25.0.0 is linked with GnuTLS, the default behaviour of AWS.Client is...","description":"When AdaCore Ada Web Server 25.0.0 is linked with GnuTLS, the default behaviour of AWS.Client is vulnerable to a man-in-the-middle attack because of lack of verification of an HTTPS server's certificate (unless the using program specifies a TLS configuration).","severity":{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.0029,"percentile":0.21772,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2025-02-26T00:00:00Z","modified":"2026-08-27T23:05:19Z","fixes":[{"ecosystem":"Debian:11","package":"libaws","fixed_in":["20.2-2+deb11u1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:11","package":"libaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20.2-2+deb11u1"}]}],"versions":["20.2-2"]},{"source":"osv","ecosystem":"Debian:11","package":"libaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20.2-2+deb11u1"}]}],"versions":["20.2-2"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.0-3","3.2.0-4ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["17.2.2017-2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["19.0-2","20.0-2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20.2-2build1"]}],"products":[{"vendor":"adacore","product":"ada_web_server"},{"vendor":"debian","product":"debian_linux"}],"references":[{"url":"https://docs.adacore.com/corp/security-advisories/SEC.AWS-0056-v1.pdf","tags":["exploit","Exploit","Vendor Advisory","evidence","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00007.html","tags":["Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-55581"},{"url":"https://github.com/advisories/GHSA-6pc8-5263-hvgq"},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-55581","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-55581","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-55581","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2024-55581","description":"When AdaCore Ada Web Server 25.0.0 is linked with GnuTLS, the default behaviour of AWS.Client is vulnerable to a man-in-the-middle attack because of lack of verification of an HTTPS server's certificate (unless the using program specifies a TLS 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is...","description":"When AdaCore Ada Web Server 25.0.0 is linked with GnuTLS, the default behaviour of AWS.Client is vulnerable to a man-in-the-middle attack because of lack of verification of an HTTPS server's certificate (unless the using program specifies a TLS configuration).","status":"published","published":"2025-02-27T00:30:26Z","modified":"2025-03-10T21:32:15Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:00:12.026932Z"}],"nvd":[{"id":"CVE-2024-55581","description":"When AdaCore Ada Web Server 25.0.0 is linked with GnuTLS, the default behaviour of AWS.Client is vulnerable to a man-in-the-middle attack because of lack of verification of an HTTPS server's certificate (unless the using program specifies a TLS 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