{"id":"CVE-2006-4924","details":"sshd in OpenSSH before 4.4, when using the version 1 SSH protocol, allows remote attackers to cause a denial of service (CPU consumption) via an SSH packet that contains duplicate blocks, which is not properly handled by the CRC compensation attack detector.","modified":"2026-01-27T04:07:27.437010Z","published":"2006-09-27T01:07:00Z","withdrawn":"2026-01-27T04:07:27.437010Z","references":[{"type":"ADVISORY","url":"ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:22.openssh.asc"},{"type":"ADVISORY","url":"ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc"},{"type":"ADVISORY","url":"http://secunia.com/advisories/21923"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22091"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22116"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22158"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22164"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22183"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22196"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22208"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22236"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22245"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22270"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22298"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22352"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22362"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22487"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22495"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22823"},{"type":"ADVISORY","url":"http://secunia.com/advisories/22926"},{"type":"ADVISORY","url":"http://secunia.com/advisories/23038"},{"type":"ADVISORY","url":"http://secunia.com/advisories/23241"},{"type":"ADVISORY","url":"http://secunia.com/advisories/23340"},{"type":"ADVISORY","url":"http://secunia.com/advisories/23680"},{"type":"ADVISORY","url":"http://secunia.com/advisories/24479"},{"type":"ADVISORY","url":"http://secunia.com/advisories/24799"},{"type":"ADVISORY","url":"http://secunia.com/advisories/24805"},{"type":"ADVISORY","url":"http://secunia.com/advisories/25608"},{"type":"ADVISORY","url":"http://secunia.com/advisories/29371"},{"type":"ADVISORY","url":"http://secunia.com/advisories/34274"},{"type":"ADVISORY","url":"http://security.freebsd.org/advisories/FreeBSD-SA-06%3A22.openssh.asc"},{"type":"ADVISORY","url":"http://security.gentoo.org/glsa/glsa-200609-17.xml"},{"type":"ADVISORY","url":"http://security.gentoo.org/glsa/glsa-200611-06.xml"},{"type":"ADVISORY","url":"http://www.mandriva.com/security/advisories?name=MDKSA-2006:179"},{"type":"ADVISORY","url":"http://www.novell.com/linux/security/advisories/2006_24_sr.html"},{"type":"ADVISORY","url":"http://www.novell.com/linux/security/advisories/2006_62_openssh.html"},{"type":"ADVISORY","url":"http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.022-openssh.html"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/usn-355-1"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2006/3777"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2006/4401"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2006/4869"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2007/0930"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2007/1332"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2007/2119"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2009/0740"},{"type":"FIX","url":"https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=207955"},{"type":"ADVISORY","url":"https://hypersonic.bluecoat.com/support/securityadvisories/ssh_server_on_sg"},{"type":"ARTICLE","url":"http://blogs.sun.com/security/entry/sun_alert_102962_security_vulnerability"},{"type":"FIX","url":"http://www.securityfocus.com/bid/20216"},{"type":"FIX","url":"http://www.debian.org/security/2006/dsa-1189"},{"type":"FIX","url":"http://www.debian.org/security/2006/dsa-1212"},{"type":"WEB","url":"ftp://ftp.sco.com/pub/unixware7/714/security/p534336/p534336.txt"},{"type":"WEB","url":"http://bugs.gentoo.org/show_bug.cgi?id=148228"},{"type":"WEB","url":"http://docs.info.apple.com/article.html?artnum=305214"},{"type":"WEB","url":"http://itrc.hp.com/service/cki/docDisplay.do?docId=c00815112"},{"type":"WEB","url":"http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html"},{"type":"WEB","url":"http://marc.info/?l=openssh-unix-dev&m=115939141729160&w=2"},{"type":"WEB","url":"http://securitytracker.com/id?1016931"},{"type":"WEB","url":"http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.592566"},{"type":"WEB","url":"http://sourceforge.net/forum/forum.php?forum_id=681763"},{"type":"WEB","url":"http://sourceforge.net/project/shownotes.php?release_id=461863&group_id=69227"},{"type":"WEB","url":"http://sunsolve.sun.com/search/document.do?assetkey=1-26-102962-1"},{"type":"WEB","url":"http://support.avaya.com/elmodocs2/security/ASA-2006-216.htm"},{"type":"WEB","url":"http://support.avaya.com/elmodocs2/security/ASA-2006-262.htm"},{"typ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