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    Dashboard / CVE / CVE-2006-5051

    CVE-2006-5051

    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.

    Published:Sep 27, 2006
    Last Modified:Apr 23, 2026
    EPS:Sep 27, 2006
    EPSS Score:0.02623
    CVSS Score:8.1

    Affected Products

    Vendor
    Apple
    Product
    Mac Os X
    Vendor
    Apple
    Product
    Mac Os X Server
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Openbsd
    Product
    Openssh
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://github.com/anhvutuan/CVE-2024-6387-poc-1https://github.com/bigb0x/CVE-2024-6387https://github.com/sardine-web/CVE-2024-6387_Check

    Common Weakness Enumeration

    CWE-415 Double Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2021-3187 (CVSS 8.8) — An issue was discovered in BeyondTrust Privilege Management for Mac before 5.7. An authenticated, unprivileged…
    CVE-2023-34045 (CVSS 6.6) — VMware Fusion(13.x prior to 13.5) contains a local privilege escalation vulnerability that occurs during inst…
    CVE-2023-34046 (CVSS 6.7) — VMware Fusion(13.x prior to 13.5) contains a TOCTOU (Time-of-check Time-of-use) vulnerability that occurs dur…
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    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://docs.info.apple.com/article.html?artnum=305214
    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://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://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.592566
    http://sourceforge.net/forum/forum.php?forum_id=681763
    http://support.avaya.com/elmodocs2/security/ASA-2006-216.htm
    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.debian.org/security/2006/dsa-1189
    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.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.ubuntu.com/usn/usn-355-1
    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
    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
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11387
    https://www.openwall.com/lists/oss-security/2024/07/28/3
    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://docs.info.apple.com/article.html?artnum=305214
    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://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://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.592566
    http://sourceforge.net/forum/forum.php?forum_id=681763
    http://support.avaya.com/elmodocs2/security/ASA-2006-216.htm
    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.debian.org/security/2006/dsa-1189
    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.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.ubuntu.com/usn/usn-355-1
    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
    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
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11387
    https://www.openwall.com/lists/oss-security/2024/07/28/3

    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