medium
6.5
CWE
125 200
Advisory Published
CVE Published
CVE Published
Updated

CVE-2019-3459: Infoleak

First published: Thu Jan 03 2019(Updated: )

A flaw was found in the Linux kernel's implementation of Logical Link Control and Adaptation Protocol (L2CAP), part of the Bluetooth stack. An attacker, within the range of standard Bluetooth transmissions, can create and send a specially crafted packet. The response to this specially crafted packet can contain part of the kernel stack which can be used in a further attack.

Credit: security@debian.org security@debian.org security@debian.org

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-alt<0:4.14.0-115.18.1.el7a
0:4.14.0-115.18.1.el7a
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<=5.1
Ubuntu Linux=14.04
Ubuntu Linux=16.04
Ubuntu Linux=18.04
Ubuntu Linux=18.10
redhat codeready Linux builder=8.0
Red Hat Enterprise Linux=5.0
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux=8.0
redhat enterprise Linux desktop=7.0
redhat enterprise Linux eus=8.1
redhat enterprise Linux eus=8.2
redhat enterprise Linux eus=8.4
redhat enterprise Linux for real time=7
redhat enterprise Linux for real time=8
redhat enterprise Linux for real time for nfv=7
redhat enterprise Linux for real time for nfv=8
redhat enterprise Linux for real time for nfv tus=8.2
redhat enterprise Linux for real time for nfv tus=8.4
redhat enterprise Linux for real time tus=8.2
redhat enterprise Linux for real time tus=8.4
redhat enterprise Linux server=7.0
redhat enterprise Linux server aus=8.2
redhat enterprise Linux server aus=8.4
redhat enterprise Linux server tus=8.2
redhat enterprise Linux server tus=8.4
redhat enterprise Linux workstation=7.0
Red Hat Enterprise MRG=2.0
Debian GNU/Linux=8.0
debian/linux
5.10.223-1
5.10.226-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.16-1
Linux kernel<=5.1
Red Hat CodeReady Linux Builder=8.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server EUS=8.1
Red Hat Enterprise Linux Server EUS=8.2
Red Hat Enterprise Linux Server EUS=8.4
Red Hat Enterprise Linux for Real Time=7
Red Hat Enterprise Linux for Real Time=8
Red Hat Enterprise Linux for Real Time for NFV=7
Red Hat Enterprise Linux for Real Time for NFV=8
Red Hat Enterprise Linux for Real Time for NFV=8.2
Red Hat Enterprise Linux for Real Time for NFV=8.4
Red Hat Enterprise Linux for Real Time=8.2
Red Hat Enterprise Linux for Real Time=8.4
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=8.2
Red Hat Enterprise Linux Server=8.4
Red Hat Enterprise Linux Server=8.2
Red Hat Enterprise Linux Server=8.4
Red Hat Enterprise Linux Workstation=7.0
Debian=8.0

Remedy

- Disabling the bluetooth hardware in the bios. - Prevent loading of the bluetooth kernel modules. - Disable the bluetooth connection by putting the system in "airport" mode.

Remedy

https://bugzilla.novell.com/show_bug.cgi?id=1120758

Remedy

https://git.kernel.org/linus/7c9cbd0b5e38a1672fcd137894ace3b042dfbf69

Remedy

https://lore.kernel.org/linux-bluetooth/20190110062833.GA15047@kroah.com/

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2019-3459?

    CVE-2019-3459 has been rated as a moderate severity vulnerability.

  • How do I fix CVE-2019-3459?

    To fix CVE-2019-3459, ensure your system is updated to a version of the Linux kernel that is not affected, such as those specified in the advisory.

  • What systems are affected by CVE-2019-3459?

    CVE-2019-3459 impacts several versions of the Linux kernel on various systems including Red Hat, Ubuntu, and Debian.

  • Can CVE-2019-3459 be exploited remotely?

    CVE-2019-3459 can be exploited by attackers within range of standard Bluetooth transmissions.

  • Is there a patch available for CVE-2019-3459?

    Yes, patches for CVE-2019-3459 are available in the updated kernel releases from the affected distributions.

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