medium
5.5
CWE
200 665
Advisory Published
CVE Published
Updated

CVE-2016-4569: Infoleak

First published: Sun May 08 2016(Updated: )

A vulnerability was found in Linux kernel. There is an information leak in file "sound/core/timer.c" of the latest mainline Linux kernel, the stack object “tread” has a total size of 32 bytes. It contains a 8-bytes padding, which is not initialized but sent to user via copy_to_user(), resulting a kernel leak.

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-514.rt56.420.el7
0:3.10.0-514.rt56.420.el7
redhat/kernel<0:3.10.0-514.el7
0:3.10.0-514.el7
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<=4.6
Ubuntu=12.04
Ubuntu=14.04
Ubuntu=15.10
Ubuntu=16.04
SUSE Linux Enterprise Software Development Kit=11.0-sp4
SUSE Linux Enterprise Software Development Kit=12.0
SUSE Linux Enterprise Software Development Kit=12.0-sp1
SUSE Linux Enterprise Debuginfo=11.0-sp4
SUSE Linux Enterprise Desktop=12.0
SUSE Linux Enterprise Desktop=12.0-sp1
SUSE Linux Enterprise Live Patching=12.0
SUSE Linux Enterprise Module for Public Cloud=12.0
SUSE Linux Enterprise Real Time Extension=12.0-sp1
SUSE Linux Enterprise Server=11.0-extra
SUSE Linux Enterprise Server=11.0-sp4
SUSE Linux Enterprise Server=12.0
SUSE Linux Enterprise Server=12.0-sp1
SUSE Linux Enterprise Workstation Extension=12.0
SUSE Linux Enterprise Workstation Extension=12.0-sp1

Remedy

https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Remedy

https://git.kernel.org/linus/cec8f96e49d9be372fdb0c3836dcf31ec71e457e

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2016-4569?

    CVE-2016-4569 is classified with a medium severity level due to an information leak in the Linux kernel.

  • How do I fix CVE-2016-4569?

    To fix CVE-2016-4569, update the Linux kernel to version 0:3.10.0-514.rt56.420.el7 or 0:3.10.0-514.el7 or later.

  • Which versions of Linux are affected by CVE-2016-4569?

    CVE-2016-4569 affects various versions of the Linux kernel up to 4.6 and specific Ubuntu and SUSE distributions.

  • What causes the information leak in CVE-2016-4569?

    The information leak in CVE-2016-4569 is caused by uninitialized padding bytes in the stack object 'tread' being sent to user space.

  • Is CVE-2016-4569 exploitable?

    Yes, CVE-2016-4569 can be exploited for exposing sensitive information due to the uninitialized data being leaked.

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