high
7.2
CWE
787 119
Advisory Published
CVE Published
Updated

CVE-2018-1068: Buffer Overflow

First published: Mon Mar 05 2018(Updated: )

A flaw was found in the latest Linux kernel. A out-of-bounds write of kernel address space may be triggered via uncontrolled userland provided offset in ebt_entry struct in netfilter/ebtables.c. References: <a href="https://marc.info/?l=linux-netdev&amp;m=152023808817590&amp;w=2">https://marc.info/?l=linux-netdev&amp;m=152023808817590&amp;w=2</a> <a href="https://marc.info/?l=linux-netdev&amp;m=152025888924151&amp;w=2">https://marc.info/?l=linux-netdev&amp;m=152025888924151&amp;w=2</a> An upsteam patch: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b71812168571fa55e44cdd0254471331b9c4c4c6">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b71812168571fa55e44cdd0254471331b9c4c4c6</a> <a href="https://github.com/torvalds/linux/commit/b71812168571fa55e44cdd0254471331b9c4c4c6">https://github.com/torvalds/linux/commit/b71812168571fa55e44cdd0254471331b9c4c4c6</a>

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

Affected SoftwareAffected VersionHow to fix
Linux Linux kernel<3.2.102
Linux Linux kernel>=3.3<3.16.57
Linux Linux kernel>=3.17<3.18.100
Linux Linux kernel>=3.19<4.1.51
Linux Linux kernel>=4.2<4.4.122
Linux Linux kernel>=4.5<4.9.88
Linux Linux kernel>=4.10<4.14.27
Linux Linux kernel>=4.15<4.15.10
Canonical Ubuntu Linux=12.04
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=17.10
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Redhat Virtualization Host=4.0
Redhat Enterprise Linux Desktop=7.0
Redhat Enterprise Linux Server=7.0
Redhat Enterprise Linux Server Aus=7.6
Redhat Enterprise Linux Server Eus=7.5
Redhat Enterprise Linux Server Eus=7.6
Redhat Enterprise Linux Server Tus=7.6
Redhat Enterprise Linux Workstation=7.0
redhat/kernel<3.10.0-862.1.1.el7
3.10.0-862.1.1.el7
debian/linux
5.10.223-1
5.10.226-1
6.1.115-1
6.1.112-1
6.11.5-1
6.11.7-1

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b71812168571fa55e44cdd0254471331b9c4c4c6

Remedy

https://github.com/torvalds/linux/commit/b71812168571fa55e44cdd0254471331b9c4c4c6

Remedy

https://marc.info/?l=linux-netdev&m=152025888924151&w=2

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID?

    CVE-2018-1068

  • What is the severity of CVE-2018-1068?

    The severity of CVE-2018-1068 is high with a severity value of 7.

  • What is the affected software for CVE-2018-1068?

    The affected software for CVE-2018-1068 includes Linux kernel versions 4.16~ and 3.13.0-151.201.

  • How does CVE-2018-1068 impact the system?

    CVE-2018-1068 allows a privileged user to arbitrarily write to a limited range of kernel memory in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging.

  • Is there a remedy available for CVE-2018-1068?

    Yes, there are remedies available for CVE-2018-1068 depending on the specific version and source of the Linux kernel.

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