{"id":"CVE-2012-6123","aliases":["DEBIAN-CVE-2012-6123","EUVD-2012-5990","GHSA-448r-5hhg-h92c"],"status":"published","title":"Chicken before 4.8.0 does not properly handle NUL bytes in certain strings, which allows an...","description":"Chicken before 4.8.0 does not properly handle NUL bytes in certain strings, which allows an attacker to conduct \"poisoned NUL byte attack.\"","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01277,"percentile":0.70143,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2019-10-31T20:38:39Z","modified":"2026-10-23T18:02:54Z","fixes":[{"ecosystem":"Debian:12","package":"chicken","fixed_in":["4.8.0-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"chicken","fixed_in":["4.8.0-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"chicken","fixed_in":["4.8.0-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"chicken","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.8.0-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"chicken","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.8.0-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"chicken","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.8.0-1"}]}]}],"products":[{"vendor":"call-cc","product":"chicken"},{"vendor":"chicken","product":"chicken"},{"vendor":"debian","product":"debian_linux"}],"references":[{"url":"https://security-tracker.debian.org/tracker/CVE-2012-6123","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://access.redhat.com/security/cve/cve-2012-6123","tags":["x_refsource_MISC","x_transferred","Broken Link","web"]},{"url":"http://www.openwall.com/lists/oss-security/2013/02/08/2","tags":["x_refsource_MISC","x_transferred","Mailing List","Third Party Advisory","advisory","article"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-6123"},{"url":"https://github.com/advisories/GHSA-448r-5hhg-h92c"}],"sources":{"cve":[{"id":"CVE-2012-6123","description":"Chicken before 4.8.0 does not properly handle NUL bytes in certain strings, which allows an attacker to conduct \"poisoned NUL byte attack.\"","status":"published","published":"2019-10-31T20:38:39Z","modified":"2024-08-06T21:28:39.385Z","updated_at":"2026-11-02T14:34:50.94153Z"}],"euvd":[{"id":"EUVD-2012-5990","description":"Chicken before 4.8.0 does not properly handle NUL bytes in certain strings, which allows an attacker to conduct \"poisoned NUL byte attack.\"","status":"published","published":"2019-10-31T20:38:39Z","modified":"2024-08-06T21:28:39Z","updated_at":"2026-11-03T01:56:02.968969Z"}],"ghsa":[{"id":"GHSA-448r-5hhg-h92c","title":"Chicken before 4.8.0 does not properly handle NUL bytes in certain strings, which allows an...","description":"Chicken before 4.8.0 does not properly handle NUL bytes in certain strings, which allows an attacker to conduct \"poisoned NUL byte attack.\"","status":"published","published":"2022-04-23T00:40:08Z","modified":"2024-04-03T23:06:52Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:55:47.283285Z"}],"nvd":[{"id":"CVE-2012-6123","description":"Chicken before 4.8.0 does not properly handle NUL bytes in certain strings, which allows an attacker to conduct \"poisoned NUL byte attack.\"","status":"published","published":"2019-10-31T21:15:11.857Z","modified":"2026-06-16T23:47:52.13Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:18.043773Z"}],"osv":[{"id":"CVE-2012-6123","description":"Chicken before 4.8.0 does not properly handle NUL bytes in certain strings, which allows an attacker to conduct \"poisoned NUL byte attack.\"","status":"published","published":"2019-10-31T21:15:11Z","modified":"2026-04-10T03:42:34.626979Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:43:58.802805Z"},{"id":"DEBIAN-CVE-2012-6123","description":"Chicken before 4.8.0 does not properly handle NUL bytes in certain strings, which allows an attacker to conduct \"poisoned NUL byte attack.\"","status":"published","published":"2019-10-31T21:15:11.857Z","modified":"2026-10-23T18:02:54.643614458Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:25.218101Z"}]}}