high
8.8
CWE
122 787
Advisory Published
CVE Published
CVE Published
Updated

CVE-2019-3846

First published: Wed May 22 2019(Updated: )

A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-1062.4.1.rt56.1027.el7
0:3.10.0-1062.4.1.rt56.1027.el7
redhat/kernel<0:3.10.0-1062.4.1.el7
0:3.10.0-1062.4.1.el7
redhat/kernel-alt<0:4.14.0-115.17.1.el7a
0:4.14.0-115.17.1.el7a
redhat/kernel<0:3.10.0-957.54.1.el7
0:3.10.0-957.54.1.el7
redhat/kernel-rt<0:4.18.0-80.11.1.rt9.156.el8_0
0:4.18.0-80.11.1.rt9.156.el8_0
redhat/kernel<0:4.18.0-80.11.1.el8_0
0:4.18.0-80.11.1.el8_0
debian/linux
5.10.223-1
5.10.226-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.15-1
Linux Kernel>=3.0<3.16.70
Linux Kernel>=3.17<4.4.186
Linux Kernel>=4.5<4.9.186
Linux Kernel>=4.10<4.14.134
Linux Kernel>=4.15<4.19.59
Linux Kernel>=4.20<5.1.18
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux=8.0
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=18.04
Ubuntu=19.04
All of
NetApp AFF A700s Firmware
netapp a700s
All of
NetApp CN1610
NetApp CN1610 Firmware
All of
netapp h610s firmware
netapp h610s
NetApp Active IQ Unified Manager>=9.5
netapp hci management node
netapp solidfire
Fedora=29
Fedora=30
Debian=8.0
Debian=9.0
openSUSE=15.0
openSUSE=15.1
openSUSE=42.3
NetApp AFF A700s Firmware
netapp a700s
NetApp CN1610
NetApp CN1610 Firmware
netapp h610s firmware
netapp h610s

Remedy

This flaw requires a system with marvell wifi network card to be attempting to connect to a attacker controlled wifi network. A temporary mitigation may be to only connect to known-good networks via wifi, or connect to a network via ethernet. Alternatively if wireless networking is not used the mwifiex kernel module can be blacklisted to prevent misuse of the vulnerable code.

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3846

Remedy

https://seclists.org/bugtraq/2019/Jul/33

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2019-3846?

    CVE-2019-3846 has been rated as a high severity vulnerability due to its potential to allow privilege escalation.

  • How do I fix CVE-2019-3846?

    To fix CVE-2019-3846, update your kernel to the recommended versions specified by your distribution, such as Red Hat or Debian.

  • What systems are affected by CVE-2019-3846?

    CVE-2019-3846 affects several Linux kernel versions, particularly those using the mwifiex kernel module.

  • Is CVE-2019-3846 a remote attack vulnerability?

    Yes, CVE-2019-3846 can be exploited remotely when a user connects to a malicious wireless network.

  • What type of vulnerability is CVE-2019-3846?

    CVE-2019-3846 is primarily categorized as a heap overflow vulnerability.

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