{"id":"CVE-2008-1804","aliases":["DEBIAN-CVE-2008-1804","DTSA-173-1","EUVD-2008-1804","GHSA-4jj5-f426-fhfh"],"status":"published","title":"preprocessors/spp_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet...","description":"preprocessors/spp_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet fragments that have dissimilar TTL values, which allows remote attackers to bypass detection rules by using a different TTL for each fragment.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.02269,"percentile":0.8315,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2008-05-22T10:00:00Z","modified":"2026-06-16T22:52:31Z","fixes":[{"ecosystem":"Debian:5.0","package":"snort","fixed_in":["2.7.0-19+lenny1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:5.0","package":"snort","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.0-19+lenny1"}]}]}],"products":[{"vendor":"snort","product":"snort"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/42584","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://cvs.snort.org/viewcvs.cgi/snort/src/preprocessors/spp_frag3.c.diff?r1=text\u0026tr1=1.46.2.4\u0026r2=text\u0026tr2=1.46.2.5\u0026diff_format=h","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00156.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://securitytracker.com/id?1020081","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2008/1602","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00167.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://secunia.com/advisories/30348","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.ipcop.org/index.php?name=News\u0026file=article\u0026sid=40","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/29327","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=701","tags":["third-party-advisory","x_refsource_IDEFENSE","x_transferred","web"]},{"url":"http://cvs.snort.org/viewcvs.cgi/snort/ChangeLog?rev=1.534.2.11","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00198.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://secunia.com/advisories/31204","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/30563","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2008-1804"},{"url":"https://github.com/advisories/GHSA-4jj5-f426-fhfh"},{"url":"https://security-tracker.debian.org/tracker/CVE-2008-1804","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2008-1804","description":"preprocessors/spp_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet fragments that have dissimilar TTL values, which allows remote attackers to bypass detection rules by using a different TTL for each fragment.","status":"published","published":"2008-05-22T10:00:00Z","modified":"2024-08-07T08:32:01.432Z","updated_at":"2026-11-02T14:34:47.71012Z"}],"euvd":[{"id":"EUVD-2008-1804","description":"preprocessors/spp_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet fragments that have dissimilar TTL values, which allows remote attackers to bypass detection rules by using a different TTL for each fragment.","status":"published","published":"2008-05-22T10:00:00Z","modified":"2024-08-07T08:32:01Z","updated_at":"2026-11-03T01:38:59.763671Z"}],"ghsa":[{"id":"GHSA-4jj5-f426-fhfh","title":"preprocessors/spp_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet...","description":"preprocessors/spp_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet fragments that have dissimilar TTL values, which allows remote attackers to bypass detection rules by using a different TTL for each fragment.","status":"published","published":"2022-05-01T23:43:43Z","modified":"2023-01-31T05:05:36Z","updated_at":"2026-11-02T14:48:53.375258Z"}],"nvd":[{"id":"CVE-2008-1804","description":"preprocessors/spp_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet fragments that have dissimilar TTL values, which allows remote attackers to bypass detection rules by using a different TTL for each fragment.","status":"published","published":"2008-05-22T13:09:00Z","modified":"2026-06-16T22:52:31.307Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:26.626719Z"}],"osv":[{"id":"CVE-2008-1804","description":"preprocessors/spp_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet fragments that have dissimilar TTL values, which allows remote attackers to bypass detection rules by using a different TTL for each fragment.","status":"withdrawn","published":"2008-05-22T13:09:00Z","modified":"2024-06-30T12:01:22Z","updated_at":"2026-11-02T15:43:57.178433Z"},{"id":"DTSA-173-1","title":"snort - rules bypass","status":"published","published":"2008-11-03T00:00:00Z","modified":"2026-03-09T01:01:03.71707Z","updated_at":"2026-11-02T15:46:18.716547Z"}]}}