SUSE-SU-2019:0754-1

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    SUSE-SU-2019:0754-1

    Published: 26 Mar 2019Last Modified: 4 Feb 2026

    Summary: Security update for the Linux Kernel (Live Patch 19 for SLE 12 SP3)

    Details: This update for the Linux Kernel 4.4.156-94_61 fixes several issues. The following security issues were fixed: - CVE-2019-9213: Expand_downwards in mm/mmap.c lacked a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task (bsc#1128378). - CVE-2019-7221: Fixed a user-after-free vulnerability in the KVM hypervisor related to the emulation of a preemption timer, allowing an guest user/process to crash the host kernel. (bsc#1124734). - CVE-2019-6974: kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandled reference counting because of a race condition, leading to a use-after-free (bsc#1124729).

    References: https://www.suse.com/support/update/announcement/2019/suse-su-20190754-1/, https://bugzilla.suse.com/1124729, https://bugzilla.suse.com/1124734, https://bugzilla.suse.com/1128378, https://www.suse.com/security/cve/CVE-2019-6974, https://www.suse.com/security/cve/CVE-2019-7221, https://www.suse.com/security/cve/CVE-2019-9213

    Affected packages

    Package

    Name: kgraft-patch-SLE12-SP3_Update_15

    Purl: pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_15&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -7-2.1

    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