CVE-2019-15902

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    CVE-2019-15902

    Published: 4 Sept 2019Last Modified: 15 Mar 2026

    Summary:

    Details: A backporting error was discovered in the Linux stable/longterm kernel 4.4.x through 4.4.190, 4.9.x through 4.9.190, 4.14.x through 4.14.141, 4.19.x through 4.19.69, and 5.2.x through 5.2.11. Misuse of the upstream "x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()" commit reintroduced the Spectre vulnerability that it aimed to eliminate. This occurred because the backport process depends on cherry picking specific commits, and because two (correctly ordered) code lines were swapped.

    References: https://usn.ubuntu.com/4163-2/, https://usn.ubuntu.com/4157-1/, https://usn.ubuntu.com/4157-2/, https://usn.ubuntu.com/4162-1/, https://usn.ubuntu.com/4162-2/, https://usn.ubuntu.com/4163-1/, https://www.debian.org/security/2019/dsa-4531, http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html, http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html, https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html, https://seclists.org/bugtraq/2019/Sep/41, https://security.netapp.com/advisory/ntap-20191004-0001/, https://grsecurity.net/teardown_of_a_failed_linux_lts_spectre_fix.php

    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