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    CVE-2024-0567

    A vulnerability was found in GnuTLS, where a cockpit (which uses gnuTLS) rejects a certificate chain with distributed trust. This issue occurs when validating a certificate chain with cockpit-certificate-ensure. This flaw allows an unauthenticated, remote client or attacker to initiate a denial of service attack.

    Published:Jan 16, 2024
    Last Modified:Nov 20, 2025
    EPS:Jan 16, 2024
    EPSS Score:0.00835
    CVSS Score:7.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Gnu
    Product
    Gnutls
    Vendor
    Netapp
    Product
    Active Iq Unified Manager
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Logging
    Vendor
    Redhat
    Product
    Openshift
    Vendor
    Redhat
    Product
    Openshift Data Foundation
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    https://bugzilla.redhat.com/show_bug.cgi?id=2258544https://gitlab.com/gnutls/gnutls/-/issues/1521https://bugzilla.redhat.com/show_bug.cgi?id=2258544https://gitlab.com/gnutls/gnutls/-/issues/1521

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-463 Padding Oracle Crypto Attack
    CAPEC-475 Signature Spoofing by Improper Validation

    Related CVEs

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    CVE-2026-49975 (CVSS 7.5) — Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of …
    CVE-2026-9256 (CVSS 9.2) — NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerabilit…
    CVE-2026-31431 (CVSS 7.8) — In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating …
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    References

    https://access.redhat.com/errata/RHSA-2024:0533
    https://access.redhat.com/errata/RHSA-2024:1082
    https://access.redhat.com/errata/RHSA-2024:1383
    https://access.redhat.com/errata/RHSA-2024:2094
    https://access.redhat.com/security/cve/CVE-2024-0567
    https://bugzilla.redhat.com/show_bug.cgi?id=2258544
    https://gitlab.com/gnutls/gnutls/-/issues/1521
    https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html
    http://www.openwall.com/lists/oss-security/2024/01/19/3
    https://access.redhat.com/errata/RHSA-2024:0533
    https://access.redhat.com/errata/RHSA-2024:1082
    https://access.redhat.com/errata/RHSA-2024:1383
    https://access.redhat.com/errata/RHSA-2024:2094
    https://access.redhat.com/security/cve/CVE-2024-0567
    https://bugzilla.redhat.com/show_bug.cgi?id=2258544
    https://gitlab.com/gnutls/gnutls/-/issues/1521
    https://lists.fedoraproject.org/archives/list/[email protected]/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/
    https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html
    https://security.netapp.com/advisory/ntap-20240202-0011/

    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