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    CVE-2006-5052

    Unspecified vulnerability in portable OpenSSH before 4.4, when running on some platforms, allows remote attackers to determine the validity of usernames via unknown vectors involving a GSSAPI "authentication abort."

    Published:Sep 27, 2006
    Last Modified:Apr 23, 2026
    EPS:Sep 27, 2006
    EPSS Score:0.14969
    CVSS Score:5

    Affected Products

    Vendor
    Openbsd
    Product
    Openssh
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-73283 (CVSS 2.5) — In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tun…
    CVE-2026-73282 (CVSS 4.8) — In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forward…
    CVE-2026-73281 (CVSS 3.5) — In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locall…
    CVE-2026-60002 (CVSS 7.7) — ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchan…
    CVE-2026-60001 (CVSS 6.5) — sshd in OpenSSH before 10.4 does not always honor the minimum authentication delay.…
    CVE-2026-60000 (CVSS 3.7) — sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service (resource consumption from ex…
    CVE-2026-59999 (CVSS 5.9) — In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, b…
    CVE-2026-59998 (CVSS 4.8) — sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no v…
    CVE-2026-59997 (CVSS 4.2) — internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be …
    CVE-2026-59996 (CVSS 4.2) — scp in OpenSSH before 10.4 may place a file in the parent directory of an intended directory when the copy occ…

    References

    http://docs.info.apple.com/article.html?artnum=305214
    http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html
    http://marc.info/?l=openssh-unix-dev&m=115939141729160&w=2
    http://openssh.org/txt/release-4.4
    http://rhn.redhat.com/errata/RHSA-2006-0697.html
    http://secunia.com/advisories/22158
    http://secunia.com/advisories/22173
    http://secunia.com/advisories/22495
    http://secunia.com/advisories/22823
    http://secunia.com/advisories/24479
    http://secunia.com/advisories/27588
    http://secunia.com/advisories/28320
    http://security.gentoo.org/glsa/glsa-200611-06.xml
    http://securitytracker.com/id?1016939
    http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.592566
    http://support.avaya.com/elmodocs2/security/ASA-2007-527.htm
    http://www.novell.com/linux/security/advisories/2006_62_openssh.html
    http://www.osvdb.org/29266
    http://www.redhat.com/support/errata/RHSA-2007-0540.html
    http://www.redhat.com/support/errata/RHSA-2007-0703.html
    http://www.securityfocus.com/archive/1/447861/100/200/threaded
    http://www.securityfocus.com/bid/20245
    http://www.us-cert.gov/cas/techalerts/TA07-072A.html
    http://www.vupen.com/english/advisories/2007/0930
    https://exchange.xforce.ibmcloud.com/vulnerabilities/29255
    https://issues.rpath.com/browse/RPL-681
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10178
    http://docs.info.apple.com/article.html?artnum=305214
    http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html
    http://marc.info/?l=openssh-unix-dev&m=115939141729160&w=2
    http://openssh.org/txt/release-4.4
    http://rhn.redhat.com/errata/RHSA-2006-0697.html
    http://secunia.com/advisories/22158
    http://secunia.com/advisories/22173
    http://secunia.com/advisories/22495
    http://secunia.com/advisories/22823
    http://secunia.com/advisories/24479
    http://secunia.com/advisories/27588
    http://secunia.com/advisories/28320
    http://security.gentoo.org/glsa/glsa-200611-06.xml
    http://securitytracker.com/id?1016939
    http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.592566
    http://support.avaya.com/elmodocs2/security/ASA-2007-527.htm
    http://www.novell.com/linux/security/advisories/2006_62_openssh.html
    http://www.osvdb.org/29266
    http://www.redhat.com/support/errata/RHSA-2007-0540.html
    http://www.redhat.com/support/errata/RHSA-2007-0703.html
    http://www.securityfocus.com/archive/1/447861/100/200/threaded
    http://www.securityfocus.com/bid/20245
    http://www.us-cert.gov/cas/techalerts/TA07-072A.html
    http://www.vupen.com/english/advisories/2007/0930
    https://exchange.xforce.ibmcloud.com/vulnerabilities/29255
    https://issues.rpath.com/browse/RPL-681
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10178

    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