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    CVE-2023-5981

    A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.

    Published:Nov 15, 2023
    Last Modified:Mar 25, 2026
    EPS:Nov 28, 2023
    EPSS Score:0.00573
    CVSS Score:5.9

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Gnu
    Product
    Gnutls
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Linux
    Vendor
    Redhat
    Product
    Logging
    Vendor
    Redhat
    Product
    Openshift Data Foundation
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    No exploit reference

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    References

    https://access.redhat.com/errata/RHSA-2024:0155
    https://access.redhat.com/errata/RHSA-2024:0319
    https://access.redhat.com/errata/RHSA-2024:0399
    https://access.redhat.com/errata/RHSA-2024:0451
    https://access.redhat.com/errata/RHSA-2024:0533
    https://access.redhat.com/errata/RHSA-2024:1383
    https://access.redhat.com/errata/RHSA-2024:2094
    https://access.redhat.com/security/cve/CVE-2023-5981
    https://bugzilla.redhat.com/show_bug.cgi?id=2248445
    https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23
    http://www.openwall.com/lists/oss-security/2024/01/19/3
    https://access.redhat.com/errata/RHSA-2024:0155
    https://access.redhat.com/errata/RHSA-2024:0319
    https://access.redhat.com/errata/RHSA-2024:0399
    https://access.redhat.com/errata/RHSA-2024:0451
    https://access.redhat.com/errata/RHSA-2024:0533
    https://access.redhat.com/errata/RHSA-2024:1383
    https://access.redhat.com/errata/RHSA-2024:2094
    https://access.redhat.com/security/cve/CVE-2023-5981
    https://bugzilla.redhat.com/show_bug.cgi?id=2248445
    https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23
    https://lists.debian.org/debian-lts-announce/2023/11/msg00016.html
    https://lists.fedoraproject.org/archives/list/[email protected]/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/

    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