CVE-2018-15572

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    CVE-2018-15572

    Published: 20 Aug 2018Last Modified: 15 Mar 2026

    Summary:

    Details: The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it easier for attackers to conduct userspace-userspace spectreRSB attacks.

    References: https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html, https://usn.ubuntu.com/3776-2/, https://usn.ubuntu.com/3777-1/, https://usn.ubuntu.com/3777-3/, https://www.debian.org/security/2018/dsa-4308, https://usn.ubuntu.com/3775-1/, https://usn.ubuntu.com/3775-2/, https://usn.ubuntu.com/3776-1/, https://usn.ubuntu.com/3777-2/, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346, https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1, https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    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