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    CVE-2023-1667

    A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may allow an authenticated client to cause a denial of service.

    Published:Apr 30, 2023
    Last Modified:Nov 21, 2024
    EPS:May 26, 2023
    EPSS Score:0.01061
    CVSS Score:6.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Libssh
    Product
    Libssh
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://www.libssh.org/security/advisories/CVE-2023-1667.txt
    https://access.redhat.com/security/cve/CVE-2023-1667
    https://bugzilla.redhat.com/show_bug.cgi?id=2182199
    https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/
    https://security.gentoo.org/glsa/202312-05
    http://www.libssh.org/security/advisories/CVE-2023-1667.txt
    https://access.redhat.com/security/cve/CVE-2023-1667
    https://bugzilla.redhat.com/show_bug.cgi?id=2182199
    https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/
    https://security.gentoo.org/glsa/202312-05

    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