{"id":"DEBIAN-CVE-2012-4561","details":"The (1) publickey_make_dss, (2) publickey_make_rsa, (3) signature_from_string, (4) ssh_do_sign, and (5) ssh_sign_session_id functions in keys.c in libssh before 0.5.3 free \"an invalid pointer on an error path,\" which might allow remote attackers to cause a denial of service (crash) via unspecified vectors.","modified":"2026-04-28T20:16:40.083120Z","published":"2012-11-30T22:55:01.720Z","upstream":["CVE-2012-4561"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2012-4561"}],"affected":[{"package":{"name":"libssh","ecosystem":"Debian:11","purl":"pkg:deb/debian/libssh?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2012-4561.json"}},{"package":{"name":"libssh","ecosystem":"Debian:12","purl":"pkg:deb/debian/libssh?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2012-4561.json"}},{"package":{"name":"libssh","ecosystem":"Debian:13","purl":"pkg:deb/debian/libssh?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2012-4561.json"}},{"package":{"name":"libssh","ecosystem":"Debian:14","purl":"pkg:deb/debian/libssh?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2012-4561.json"}}],"schema_version":"1.7.5"}