{"id":"CVE-2015-4054","aliases":["DEBIAN-CVE-2015-4054","EUVD-2015-4080","GHSA-x9fq-f586-fh7x","UBUNTU-CVE-2015-4054"],"status":"published","title":"PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer...","description":"PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0413,"percentile":0.90891,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2017-05-23T03:56:00Z","modified":"2026-09-09T07:01:17Z","fixes":[{"ecosystem":"Debian:12","package":"pgbouncer","fixed_in":["1.5.5-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"pgbouncer","fixed_in":["1.5.5-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"pgbouncer","fixed_in":["1.5.5-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"pgbouncer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.5-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"pgbouncer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.5-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"pgbouncer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.5-1"}]}]}],"products":[{"vendor":"pgbouncer","product":"pgbouncer"}],"references":[{"url":"https://github.com/pgbouncer/pgbouncer/commit/edab5be6665b9e8de66c25ba527509b229468573","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","advisory","fix"]},{"url":"https://github.com/pgbouncer/pgbouncer/commit/74d6e5f7de5ec736f71204b7b422af7380c19ac5","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","advisory","fix"]},{"url":"https://pgbouncer.github.io/changelog.html#pgbouncer-15x","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Third Party Advisory","advisory"]},{"url":"http://www.securityfocus.com/bid/74751","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://github.com/pgbouncer/pgbouncer/issues/42","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory","advisory","evidence","report"]},{"url":"http://www.openwall.com/lists/oss-security/2015/05/22/5","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","article"]},{"url":"https://security.gentoo.org/glsa/201701-24","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-4054"},{"url":"https://github.com/advisories/GHSA-x9fq-f586-fh7x"},{"url":"https://security-tracker.debian.org/tracker/CVE-2015-4054","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2015-4054","tags":["report"]},{"url":"http://www.openwall.com/lists/oss-security/2015/05/21/2","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-4054","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2015-4054","description":"PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet.","status":"published","published":"2017-05-23T03:56:00Z","modified":"2024-08-06T06:04:02.656Z","updated_at":"2026-11-02T14:35:43.698357Z"}],"euvd":[{"id":"EUVD-2015-4080","description":"PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet.","status":"published","published":"2017-05-23T03:56:00Z","modified":"2024-08-06T06:04:02Z","updated_at":"2026-11-03T02:22:05.665475Z"}],"ghsa":[{"id":"GHSA-x9fq-f586-fh7x","title":"PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer...","description":"PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet.","status":"published","published":"2022-05-13T01:13:51Z","modified":"2023-02-01T05:04:12Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:50:08.411477Z"}],"nvd":[{"id":"CVE-2015-4054","description":"PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet.","status":"published","published":"2017-05-23T04:29:00.383Z","modified":"2026-06-17T00:26:42.04Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:03:17.730372Z"}],"osv":[{"id":"CVE-2015-4054","description":"PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet.","status":"published","published":"2017-05-23T04:29:00Z","modified":"2026-04-10T03:46:21.577758Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:00.594921Z"},{"id":"DEBIAN-CVE-2015-4054","description":"PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet.","status":"published","published":"2017-05-23T04:29:00.383Z","modified":"2026-09-09T07:01:17.75917842Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:26.752992Z"},{"id":"UBUNTU-CVE-2015-4054","description":"PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet.","status":"withdrawn","published":"2017-05-23T04:29:00Z","modified":"2025-07-16T07:32:59.344713Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:10.045446Z"}]}}