CVE-2019-15030

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    CVE-2019-15030

    Published: 13 Sept 2019Last Modified: 15 Mar 2026

    Summary:

    Details: In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via a Facility Unavailable exception. To exploit the venerability, a local user starts a transaction (via the hardware transactional memory instruction tbegin) and then accesses vector registers. At some point, the vector registers will be corrupted with the values from a different local Linux process because of a missing arch/powerpc/kernel/process.c check.

    References: https://usn.ubuntu.com/4135-1/, https://usn.ubuntu.com/4135-2/, http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html, http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html, https://access.redhat.com/errata/RHSA-2020:0740, https://security.netapp.com/advisory/ntap-20191004-0001/, http://www.openwall.com/lists/oss-security/2019/09/10/3, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8205d5d98ef7f155de211f5e2eb6ca03d95a5a60

    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