UBUNTU-CVE-2018-15594

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    UBUNTU-CVE-2018-15594

    Published: 20 Aug 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-15594
    Aliases:
    USN-3775-1
    USN-3775-2
    USN-3776-1

    Summary:

    Details: arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests.

    References: https://ubuntu.com/security/CVE-2018-15594, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5800dc5c19f34e6e03b5adab1282535cb102fafd, https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1, https://github.com/torvalds/linux/commit/5800dc5c19f34e6e03b5adab1282535cb102fafd, https://twitter.com/grsecurity/status/1029324426142199808, https://ubuntu.com/security/notices/USN-3775-1, https://ubuntu.com/security/notices/USN-3775-2, https://ubuntu.com/security/notices/USN-3776-1, https://ubuntu.com/security/notices/USN-3776-2, https://ubuntu.com/security/notices/USN-3777-1, https://ubuntu.com/security/notices/USN-3777-2, https://ubuntu.com/security/notices/USN-3777-3, https://www.cve.org/CVERecord?id=CVE-2018-15594

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-160.210

    Affected versions

    3.11.0-12.19

    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