{"id":"CVE-2007-6712","aliases":["BELL-CVE-2007-6712","DSA-1588-1","EUVD-2007-6676","GHSA-g8gq-4rhw-xpq5","RHSA-2008:0275","RHSA-2008:0585"],"status":"published","title":"Integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel 2.6.21-rc4, when...","description":"Integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel 2.6.21-rc4, when running on 64-bit systems, allows local users to cause a denial of service (infinite loop) via a timer with a large expiry value, which causes the timer to always be expired.","severity":{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00392,"percentile":0.33569,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-189"],"published":"2008-04-12T19:00:00Z","modified":"2026-06-28T10:01:57Z","affected":[{"source":"osv","ecosystem":"Debian:4.0","package":"linux-2.6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.18.dfsg.1-18etch5"}]}],"versions":["2.6.18.dfsg.1-12","2.6.18.dfsg.1-12etch1","2.6.18.dfsg.1-12etch2","2.6.18.dfsg.1-13","2.6.18.dfsg.1-13etch1","2.6.18.dfsg.1-13etch2","2.6.18.dfsg.1-13etch3","2.6.18.dfsg.1-13etch4","2.6.18.dfsg.1-13etch5","2.6.18.dfsg.1-13etch6","2.6.18.dfsg.1-13lenny1","2.6.18.dfsg.1-14","2.6.18.dfsg.1-15","2.6.18.dfsg.1-16","2.6.18.dfsg.1-17","2.6.18.dfsg.1-17etch1","2.6.18.dfsg.1-18","2.6.18.dfsg.1-18etch1","2.6.18.dfsg.1-18etch3","2.6.18.dfsg.1-18etch4"],"bundled":4},{"source":"osv","ecosystem":"Debian:4.0","package":"fai-kernels","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17+etch.18etch5"}]}],"versions":["1.17","1.17+etch.13etch3","1.17+etch.13etch4","1.17+etch.13etch5","1.17+etch.13etch6","1.17+etch.16","1.17+etch.17","1.17+etch.17etch1","1.17+etch.18etch1","1.17+etch.18etch2","1.17+etch.18etch3","1.17+etch.18etch4","1.17+etch1","1.17+etch2","1.17+etch3","1.17+etch4","1.17+etch5","1.17etch1"],"bundled":4},{"source":"osv","ecosystem":"Debian:4.0","package":"user-mode-linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.18-1um-2etch.18etch5"}]}],"versions":["2.6.18-1um-2","2.6.18-1um-2etch.13etch3","2.6.18-1um-2etch.13etch4","2.6.18-1um-2etch.13etch5","2.6.18-1um-2etch.13etch6","2.6.18-1um-2etch.16","2.6.18-1um-2etch.17","2.6.18-1um-2etch.17etch1","2.6.18-1um-2etch.18etch1","2.6.18-1um-2etch.18etch2","2.6.18-1um-2etch.18etch3","2.6.18-1um-2etch.18etch4","2.6.18-1um-2etch1","2.6.18-1um-2etch2","2.6.18-1um-2etch3","2.6.18-1um-2etch4"],"bundled":4},{"source":"osv","ecosystem":"Red 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overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel 2.6.21-rc4, when running on 64-bit systems, allows local users to cause a denial of service (infinite loop) via a timer with a large expiry value, which causes the timer to always be expired.","status":"published","published":"2008-04-12T19:00:00Z","modified":"2024-08-07T16:18:20.7Z","updated_at":"2026-11-02T13:33:07.91528Z"}],"euvd":[{"id":"EUVD-2007-6676","description":"Integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel 2.6.21-rc4, when running on 64-bit systems, allows local users to cause a denial of service (infinite loop) via a timer with a large expiry value, which causes the timer to always be expired.","status":"published","published":"2008-04-12T19:00:00Z","modified":"2024-08-07T16:18:20Z","updated_at":"2026-11-03T01:16:11.286196Z"}],"ghsa":[{"id":"GHSA-g8gq-4rhw-xpq5","title":"Integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel 2.6.21-rc4, when...","description":"Integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel 2.6.21-rc4, when running on 64-bit systems, allows local users to cause a denial of service (infinite loop) via a timer with a large expiry value, which causes the timer to always be expired.","status":"published","published":"2022-05-01T18:45:50Z","modified":"2025-04-09T03:53:34Z","updated_at":"2026-11-02T15:00:57.05109Z"}],"nvd":[{"id":"CVE-2007-6712","description":"Integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel 2.6.21-rc4, when running on 64-bit systems, allows local users to cause a denial of service (infinite loop) via a timer with a large expiry value, which causes the timer to always be expired.","status":"published","published":"2008-04-12T19:05:00Z","modified":"2026-06-16T22:48:37.567Z","cvss":[{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:01:24.110006Z"}],"osv":[{"id":"BELL-CVE-2007-6712","title":"CVE-2007-6712 does not affect BellSoft software","status":"withdrawn","published":"2008-04-12T19:05:00Z","modified":"2026-01-28T07:21:57.655524Z","cvss":[{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium"}],"updated_at":"2026-11-02T15:28:12.886815Z"},{"id":"DSA-1588-1","title":"fai-kernels linux-2.6 user-mode-linux - several vulnerabilities","status":"published","published":"2008-05-27T00:00:00Z","modified":"2026-03-09T01:18:19.950327Z","updated_at":"2026-11-02T15:46:14.734124Z"},{"id":"RHSA-2008:0275","title":"Red Hat Security Advisory: kernel security and bug fix update","status":"published","published":"2024-09-15T17:20:29Z","modified":"2026-06-26T12:18:14.359294461Z","updated_at":"2026-11-02T15:52:59.70892Z"},{"id":"RHSA-2008:0585","title":"Red Hat Security Advisory: kernel security and bug fix update","status":"published","published":"2024-09-13T06:23:55Z","modified":"2026-06-28T10:01:57Z","updated_at":"2026-11-02T15:52:59.70892Z"}]}}