{"id":"CVE-2012-1577","aliases":["DEBIAN-CVE-2012-1577","EUVD-2012-1594","GHSA-7542-v6gh-mfvw"],"status":"published","title":"lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.","description":"lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.0155,"percentile":0.75241,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-335"],"published":"2019-12-10T18:45:07Z","modified":"2026-10-23T18:02:51Z","fixes":[{"ecosystem":"Debian:12","package":"dietlibc","fixed_in":["0.33~cvs20120325-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"dietlibc","fixed_in":["0.33~cvs20120325-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"dietlibc","fixed_in":["0.33~cvs20120325-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"dietlibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.33~cvs20120325-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"dietlibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.33~cvs20120325-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"dietlibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.33~cvs20120325-1"}]}]}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"dietlibc","product":"dietlibc"},{"vendor":"dietlibc_project","product":"dietlibc"},{"vendor":"openbsd","product":"openbsd"}],"references":[{"url":"https://security-tracker.debian.org/tracker/CVE-2012-1577","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2012/03/23/14","tags":["x_refsource_MISC","x_transferred","Mailing List","Third Party Advisory","advisory","article"]},{"url":"http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/random.c#rev1.16","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://github.com/ensc/dietlibc/blob/master/CHANGES","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-1577"},{"url":"https://github.com/advisories/GHSA-7542-v6gh-mfvw"}],"sources":{"cve":[{"id":"CVE-2012-1577","description":"lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.","status":"published","published":"2019-12-10T18:45:07Z","modified":"2024-08-06T19:01:02.509Z","updated_at":"2026-11-02T14:34:52.27879Z"}],"euvd":[{"id":"EUVD-2012-1594","description":"lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.","status":"published","published":"2019-12-10T18:45:07Z","modified":"2024-08-06T19:01:02Z","updated_at":"2026-11-03T01:56:17.382633Z"}],"ghsa":[{"id":"GHSA-7542-v6gh-mfvw","title":"lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.","description":"lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.","status":"published","published":"2022-04-23T00:40:24Z","modified":"2024-04-11T21:18:06Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-335"],"updated_at":"2026-11-02T14:57:09.217628Z"}],"nvd":[{"id":"CVE-2012-1577","description":"lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.","status":"published","published":"2019-12-10T19:15:14.117Z","modified":"2026-06-16T23:39:46.013Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-335"],"updated_at":"2026-11-02T14:02:18.043773Z"}],"osv":[{"id":"CVE-2012-1577","description":"lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.","status":"published","published":"2019-12-10T19:15:14Z","modified":"2026-04-10T03:42:16.445268Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:43:58.537032Z"},{"id":"DEBIAN-CVE-2012-1577","description":"lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.","status":"published","published":"2019-12-10T19:15:14.117Z","modified":"2026-10-23T18:02:51.162424619Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:24.92418Z"}]}}