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    CVE-2022-44640

    Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1 codec used by the Key Distribution Center (KDC).

    Published:Dec 25, 2022
    Last Modified:Apr 15, 2025
    EPS:Dec 25, 2022
    EPSS Score:0.01956
    CVSS Score:9.8

    Affected Products

    Vendor
    Heimdal Project
    Product
    Heimdal
    Vendor
    Samba
    Product
    Samba

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-415 Double Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2022-42898 (CVSS 8.8) — PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may…
    CVE-2022-41916 (CVSS 5.9) — Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a den…
    CVE-2019-12098 (CVSS 7.4) — In the client side of Heimdal before 7.6.0, failure to verify anonymous PKINIT PA-PKINIT-KX key exchange permi…
    CVE-2018-16860 (CVSS 7.5) — A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, e…
    CVE-2017-17439 (CVSS 7.5) — In Heimdal through 7.4, remote unauthenticated attackers are able to crash the KDC by sending a crafted UDP pa…
    CVE-2017-6594 (CVSS 7.5) — The transit path validation code in Heimdal before 7.3 might allow attackers to bypass the capath policy prote…
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    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