UBUNTU-CVE-2022-42898

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    UBUNTU-CVE-2022-42898

    Published: 25 Dec 2022Last Modified: 20 May 2026
    Upstream:
    CVE-2022-42898
    Aliases:
    USN-5800-1
    USN-5822-1
    USN-5822-2

    Summary:

    Details: 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 lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."

    References: https://ubuntu.com/security/CVE-2022-42898, https://www.samba.org/samba/security/CVE-2022-42898.html, https://github.com/heimdal/heimdal/security/advisories/GHSA-64mq-fvfj-5x3c, https://ubuntu.com/security/notices/USN-5800-1, https://ubuntu.com/security/notices/USN-5822-1, https://ubuntu.com/security/notices/USN-5822-2, https://ubuntu.com/security/notices/USN-5828-1, https://ubuntu.com/security/notices/USN-5936-1, https://www.cve.org/CVERecord?id=CVE-2022-42898, https://ubuntu.com/security/notices/USN-7582-1

    Affected packages

    Package

    Name: heimdal

    Purl: pkg:deb/ubuntu/heimdal?arch=source&distro=trusty%2Fesm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.6~git20131207+dfsg-1ubuntu1.2+esm3

    Affected versions

    1.6~git20120403+dfsg1-3ubuntu0.1
    1.6~git20120403+dfsg1-3ubuntu0.2

    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
    UBUNTU-CVE-2022-42898 | CVE-DB