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    CVE-2021-37750

    The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field.

    Published:Aug 19, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 23, 2021
    EPSS Score:0.00454
    CVSS Score:6.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Mit
    Product
    Kerberos 5
    Vendor
    Oracle
    Product
    Communications Cloud Native Core Network Slice Selection Function
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Starwindsoftware
    Product
    Starwind Virtual San

    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

    https://github.com/krb5/krb5/commit/d775c95af7606a51bf79547a94fa52ddd1cb7f49
    https://github.com/krb5/krb5/releases
    https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MFCLW7D46E4VCREKKH453T5DA4XOLHU2/
    https://security.netapp.com/advisory/ntap-20210923-0002/
    https://web.mit.edu/kerberos/advisories/
    https://www.oracle.com/security-alerts/cpujul2022.html
    https://www.starwindsoftware.com/security/sw-20220817-0004/
    https://github.com/krb5/krb5/commit/d775c95af7606a51bf79547a94fa52ddd1cb7f49
    https://github.com/krb5/krb5/releases
    https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MFCLW7D46E4VCREKKH453T5DA4XOLHU2/
    https://security.netapp.com/advisory/ntap-20210923-0002/
    https://web.mit.edu/kerberos/advisories/
    https://www.oracle.com/security-alerts/cpujul2022.html
    https://www.starwindsoftware.com/security/sw-20220817-0004/

    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