medium
5.5
CWE
770 400
Advisory Published
CVE Published
CVE Published
Updated

CVE-2019-3882

First published: Fri Mar 15 2019(Updated: )

A flaw was found in the Linux kernel vfio interface implementation that permits violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS). References: <a href="https://seclists.org/oss-sec/2019/q2/6">https://seclists.org/oss-sec/2019/q2/6</a> A suggested fix: <a href="https://lore.kernel.org/lkml/155414977872.12780.13728555131525362206.stgit@gimli.home/T/#u">https://lore.kernel.org/lkml/155414977872.12780.13728555131525362206.stgit@gimli.home/T/#u</a>

Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-1062.rt56.1022.el7
0:3.10.0-1062.rt56.1022.el7
redhat/kernel<0:3.10.0-1062.el7
0:3.10.0-1062.el7
redhat/kernel-rt<0:4.18.0-147.rt24.93.el8
0:4.18.0-147.rt24.93.el8
redhat/kernel<0:4.18.0-147.el8
0:4.18.0-147.el8
Linux Kernel=3.10
Linux Kernel=4.14
Linux Kernel=4.18
Fedora
Debian=8.0
Debian=9.0
Debian=10.0
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=18.04
Ubuntu=18.10
Ubuntu=19.04
SUSE Linux=15.0
SUSE Linux=15.1
SUSE Linux=42.3
NetApp Active IQ Unified Manager>=9.5
NetApp SolidFire & HCI Management Node
NetApp SnapProtect
NetApp SolidFire & HCI Storage Node
NetApp Storage Replication Adapter>=7.2
NetApp VASA Provider>=7.2
NetApp Virtual Storage Console>=7.2
All of
NetApp CN1610
NetApp CN1610 Firmware
NetApp CN1610
NetApp CN1610 Firmware
debian/linux
5.10.223-1
5.10.234-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.17-1

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3882

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2019-3882?

    CVE-2019-3882 is classified as a high severity vulnerability due to its potential to allow attackers to exhaust system memory.

  • How do I fix CVE-2019-3882?

    To fix CVE-2019-3882, users should update to the recommended kernel version specified by their Linux distribution.

  • Who is affected by CVE-2019-3882?

    CVE-2019-3882 affects users of the Linux kernel versions 3.10, 4.14, and 4.18, particularly those who use vfio drivers.

  • What type of attack does CVE-2019-3882 enable?

    CVE-2019-3882 enables local attackers to bypass user memory limits through administrative privileges on vfio-bound devices.

  • What platforms are impacted by CVE-2019-3882?

    CVE-2019-3882 impacts various Linux distributions that incorporate the affected kernel versions, including Red Hat, Debian, and Ubuntu.

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