CVE-2006-5051

    Dashboard / Vulnerabilities / CVE-2006-5051

    CVE-2006-5051

    Published: 27 Sept 2006Last Modified: 10 Apr 2026

    Summary:

    Details: Signal handler race condition in OpenSSH before 4.4 allows remote attackers to cause a denial of service (crash), and possibly execute arbitrary code if GSSAPI authentication is enabled, via unspecified vectors that lead to a double-free.

    References: ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:22.openssh.asc, ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc, http://openssh.org/txt/release-4.4, http://secunia.com/advisories/22158, http://secunia.com/advisories/22173, http://secunia.com/advisories/22183, http://secunia.com/advisories/22196, http://secunia.com/advisories/22208, http://secunia.com/advisories/22236, http://secunia.com/advisories/22245, http://secunia.com/advisories/22270, http://secunia.com/advisories/22352, http://secunia.com/advisories/22362, http://secunia.com/advisories/22487, http://secunia.com/advisories/22495, http://secunia.com/advisories/22823, http://secunia.com/advisories/22926, http://secunia.com/advisories/23680, http://secunia.com/advisories/24479, http://secunia.com/advisories/24799, http://secunia.com/advisories/24805, http://security.freebsd.org/advisories/FreeBSD-SA-06%3A22.openssh.asc, http://security.gentoo.org/glsa/glsa-200611-06.xml, http://securitytracker.com/id?1016940, http://support.avaya.com/elmodocs2/security/ASA-2006-216.htm, http://www.debian.org/security/2006/dsa-1212, http://www.kb.cert.org/vuls/id/851340, http://www.mandriva.com/security/advisories?name=MDKSA-2006:179, http://www.novell.com/linux/security/advisories/2006_62_openssh.html, http://www.openbsd.org/errata.html#ssh, http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.022-openssh.html, http://www.securityfocus.com/bid/20241, http://www.ubuntu.com/usn/usn-355-1, http://www.us-cert.gov/cas/techalerts/TA07-072A.html, http://www.vupen.com/english/advisories/2006/4018, http://www.vupen.com/english/advisories/2006/4329, http://www.vupen.com/english/advisories/2007/0930, http://www.vupen.com/english/advisories/2007/1332, https://exchange.xforce.ibmcloud.com/vulnerabilities/29254, http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html, http://lists.freebsd.org/pipermail/freebsd-security/2006-October/004051.html, http://marc.info/?l=openssh-unix-dev&m=115939141729160&w=2, http://www.debian.org/security/2006/dsa-1189, http://docs.info.apple.com/article.html?artnum=305214, http://securitytracker.com/id?1016940, http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.592566, http://sourceforge.net/forum/forum.php?forum_id=681763, http://www-unix.globus.org/mail_archive/security-announce/2007/04/msg00000.html, http://www.arkoon.fr/upload/alertes/36AK-2006-07-FR-1.0_FAST360_OPENSSH.pdf, http://www.arkoon.fr/upload/alertes/43AK-2006-09-FR-1.0_SSL360_OPENSSH.pdf, http://www.kb.cert.org/vuls/id/851340, http://www.openwall.com/lists/oss-security/2024/07/01/3, http://www.openwall.com/lists/oss-security/2024/07/28/3, http://www.osvdb.org/29264, http://www.redhat.com/support/errata/RHSA-2006-0697.html, http://www.redhat.com/support/errata/RHSA-2006-0698.html, http://www.securityfocus.com/bid/20241, http://www.us-cert.gov/cas/techalerts/TA07-072A.html, http://www.vmware.com/support/vi3/doc/esx-3069097-patch.html, http://www.vmware.com/support/vi3/doc/esx-9986131-patch.html, https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11387, https://www.openwall.com/lists/oss-security/2024/07/28/3

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High