MGASA-2018-0306

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    MGASA-2018-0306

    Published: 1 Jul 2018Last Modified: 16 Apr 2026
    Upstream:
    CVE-2018-0495

    Summary: Updated libcrypt packages fix a security vulnerability

    Details: Updated libgcrypt packages fix security vulnerability: When libgcrypt uses the private key to create a signature, such as for a TLS or SSH connection, it inadvertently leaks information through memory caches. An unprivileged attacker running on the same machine can collect the information from a few thousand signatures and recover the value of the private ECDSA or DSA key (CVE-2018-0495).

    References: https://advisories.mageia.org/MGASA-2018-0306.html, https://bugs.mageia.org/show_bug.cgi?id=23210, https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html, https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/

    Affected packages

    Package

    Name: libgcrypt

    Purl: pkg:rpm/mageia/libgcrypt?arch=source&distro=mageia-5

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.5.4-5.5.mga5

    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