{"id":"CVE-2009-2939","aliases":["DEBIAN-CVE-2009-2939","EUVD-2009-2927","GHSA-rpqw-5g6j-x944"],"status":"published","title":"The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the...","description":"The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.","severity":{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00495,"percentile":0.42796,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-59"],"published":"2009-09-21T19:00:00Z","modified":"2026-10-23T17:47:32Z","fixes":[{"ecosystem":"Debian:12","package":"postfix","fixed_in":["2.6.5-3"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"postfix","fixed_in":["2.6.5-3"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"postfix","fixed_in":["2.6.5-3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.5-3"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.5-3"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.5-3"}]}]}],"products":[{"vendor":"postfix","product":"postfix"}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2009/09/18/6","tags":["mailing-list","x_refsource_MLIST","x_transferred","Exploit","evidence"]},{"url":"http://www.debian.org/security/2011/dsa-2233","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-2939"},{"url":"https://github.com/advisories/GHSA-rpqw-5g6j-x944"},{"url":"https://security-tracker.debian.org/tracker/CVE-2009-2939","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2009-2939","description":"The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.","status":"published","published":"2009-09-21T19:00:00Z","modified":"2024-08-07T06:07:37.33Z","updated_at":"2026-11-02T14:33:23.041383Z"}],"euvd":[{"id":"EUVD-2009-2927","description":"The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.","status":"published","published":"2009-09-21T19:00:00Z","modified":"2024-08-07T06:07:37Z","updated_at":"2026-11-03T01:39:15.535048Z"}],"ghsa":[{"id":"GHSA-rpqw-5g6j-x944","title":"The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the...","description":"The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.","status":"published","published":"2022-05-02T03:40:08Z","modified":"2023-01-31T05:08:05Z","cwes":["CWE-59"],"updated_at":"2026-11-02T14:49:19.883163Z"}],"nvd":[{"id":"CVE-2009-2939","description":"The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.","status":"published","published":"2009-09-21T19:30:00.39Z","modified":"2026-06-16T23:10:32.507Z","cvss":[{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:01:36.596719Z"}],"osv":[{"id":"CVE-2009-2939","description":"The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.","status":"published","published":"2009-09-21T19:30:00Z","modified":"2026-04-10T03:40:52.222293Z","updated_at":"2026-11-02T15:43:57.714116Z"},{"id":"DEBIAN-CVE-2009-2939","description":"The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.","status":"published","published":"2009-09-21T19:30:00.39Z","modified":"2026-10-23T17:47:32.426841155Z","updated_at":"2026-11-02T15:45:24.013654Z"}]}}