SUSE-SU-2025:3699-1

    Dashboard / Vulnerabilities / SUSE-SU-2025:3699-1

    SUSE-SU-2025:3699-1

    Published: 21 Oct 2025Last Modified: 4 Feb 2026
    Upstream:
    CVE-2025-3576
    Aliases:
    CVE-2025-3576

    Summary: Security update for krb5

    Details: This update for krb5 fixes the following issues: - CVE-2025-3576: weakness in the MD5 checksum design allows for spoofing of GSSAPI-protected messages that are using RC4-HMAC-MD5 (bsc#1241219). Krb5 as very old protocol supported quite a number of ciphers that are not longer up to current cryptographic standards. To avoid problems with those, SUSE has by default now disabled those alorithms. The following algorithms have been removed from valid krb5 enctypes: - des3-cbc-sha1 - arcfour-hmac-md5 To reenable those algorithms, you can use allow options in krb5.conf: [libdefaults] allow_des3 = true allow_rc4 = true to reenable them.

    References: https://www.suse.com/support/update/announcement/2025/suse-su-20253699-1/, https://bugzilla.suse.com/1241219, https://www.suse.com/security/cve/CVE-2025-3576

    Affected packages

    Package

    Name: krb5

    Purl: pkg:rpm/suse/krb5&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.20.1-150600.11.14.1

    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
    SUSE-SU-2025:3699-1 | CVE-DB