OESA-2021-1026

    Dashboard / Vulnerabilities / OESA-2021-1026

    OESA-2021-1026

    Published: 5 Feb 2021Last Modified: 18 Aug 2026
    Upstream:
    CVE-2020-28196

    Summary: krb5 security update

    Details: Kerberos is a network authentication protocol. It is designed to provide strong authentication for client/server applications by using secret-key cryptography.\r\n\r\n Security Fix(es):\r\n\r\n MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.(CVE-2020-28196)\r\n\r\n

    References: https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1026, https://nvd.nist.gov/vuln/detail/CVE-2020-28196

    Affected packages

    Package

    Name: krb5

    Purl: pkg:rpm/openEuler/krb5&distro=openEuler-20.03-LTS

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.18.2-2.oe1

    Affected versions

    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
    OESA-2021-1026 | CVE-DB