high
7.7
CWE
20
Advisory Published
CVE Published
Updated

CVE-2018-1000026: Input Validation

First published: Mon Feb 05 2018(Updated: )

Improper validation in the bnx2x network card driver of the Linux kernel version 4.15 can allow for denial of service (DoS) attacks via a packet with a gso_size larger than ~9700 bytes. Untrusted guest VMs can exploit this vulnerability in the host machine, causing a crash in the network card. References: <a href="https://patchwork.ozlabs.org/patch/859410/">https://patchwork.ozlabs.org/patch/859410/</a> <a href="https://marc.info/?t=151606867000005&amp;r=1&amp;w=2">https://marc.info/?t=151606867000005&amp;r=1&amp;w=2</a> <a href="http://lists.openwall.net/netdev/2018/01/16/40">http://lists.openwall.net/netdev/2018/01/16/40</a> <a href="http://lists.openwall.net/netdev/2018/01/18/96">http://lists.openwall.net/netdev/2018/01/18/96</a> Upstream commits: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8914a595110a6eca69a5e275b323f5d09e18f4f9">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8914a595110a6eca69a5e275b323f5d09e18f4f9</a> <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2b16f048729bf35e6c28a40cbfad07239f9dcd90">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2b16f048729bf35e6c28a40cbfad07239f9dcd90</a>

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

Affected SoftwareAffected VersionHow to fix
Linux Kernel>=2.6.12<4.4.181
Linux Kernel>=4.5.0<4.9.159
Linux Kernel>=4.10<4.14.102
Linux Kernel>=4.15<4.16
Ubuntu=12.04
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=17.10
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Workstation=7.0
Debian Linux=8.0
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.133-1
6.12.22-1

Remedy

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

Remedy

https://git.kernel.org/linus/8914a595110a6eca69a5e275b323f5d09e18f4f9

Remedy

https://git.kernel.org/linus/2b16f048729bf35e6c28a40cbfad07239f9dcd90

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-1000026?

    CVE-2018-1000026 has a severity rating that indicates it can lead to denial of service (DoS) attacks.

  • How do I fix CVE-2018-1000026?

    To fix CVE-2018-1000026, you should upgrade the Linux kernel to version 5.10.223-1 or later.

  • Which Linux distributions are affected by CVE-2018-1000026?

    CVE-2018-1000026 affects certain versions of Red Hat Enterprise Linux, Ubuntu Linux, and Debian Linux.

  • Can CVE-2018-1000026 be exploited by untrusted guest VMs?

    Yes, CVE-2018-1000026 can be exploited by untrusted guest VMs to crash the network card on the host machine.

  • What specific kernel version ranges are impacted by CVE-2018-1000026?

    CVE-2018-1000026 impacts Linux kernel versions between 4.4.181 and 4.16, as well as several specific Ubuntu and Red Hat versions.

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