CWE
401 772
Advisory Published
CVE Published
Updated

CVE-2019-20095

First published: Mon Dec 30 2019(Updated: )

A flaw was found in the Linux kernel's mwifiex driver implementation when connecting to other WiFi devices in "Test Mode." A kernel memory leak can occur if an error condition is met during the parameter negotiation. This issue can lead to a denial of service if multiple error conditions meeting the repeated connection attempts are attempted.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-1160.rt56.1131.el7
0:3.10.0-1160.rt56.1131.el7
redhat/kernel-alt<0:4.14.0-115.19.1.el7a
0:4.14.0-115.19.1.el7a
redhat/kernel<0:3.10.0-1160.el7
0:3.10.0-1160.el7
Linux Linux kernel<5.1.6
openSUSE Leap=15.1
Netapp Active Iq Unified Manager Vmware Vsphere
Netapp Cloud Backup
Netapp Data Availability Services
NetApp E-Series SANtricity OS Controller>=11.0.0<=11.70.1
Netapp Hci Management Node
Netapp Solidfire
Netapp Steelstore Cloud Integrated Storage
Netapp A700s Firmware
Netapp A700s
Netapp 8300 Firmware
Netapp 8300
Netapp 8700 Firmware
Netapp 8700
Netapp A400 Firmware
Netapp A400
Netapp H610s Firmware
Netapp H610s

Remedy

As connecting to a wireless device is not automatic and initiated by a user, not connecting to rogue access points would prevent this flaw from being abused.

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2019-20095.

  • What is the severity level of CVE-2019-20095?

    The severity level of CVE-2019-20095 is medium (5.2).

  • Which software versions are affected by CVE-2019-20095?

    The affected software versions include Linux kernel versions before 5.1.6, redhat/kernel-rt version 0:3.10.0-1160.rt56.1131.el7, redhat/kernel-alt version 0:4.14.0-115.19.1.el7a, redhat/kernel version 0:3.10.0-1160.el7, and openSUSE Leap version 15.1.

  • How can I fix CVE-2019-20095?

    To fix CVE-2019-20095, update your software to a version that is not vulnerable.

  • Where can I find more information about CVE-2019-20095?

    You can find more information about CVE-2019-20095 at the following references: [Link 1](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=003b686ace820ce2d635a83f10f2d7f9c147dabc), [Link 2](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1791955), [Link 3](https://access.redhat.com/errata/RHSA-2020:1493).

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