high
7.2
CWE
787
Advisory Published
CVE Published
Updated

CVE-2020-12659

First published: Tue May 05 2020(Updated: )

An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.

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

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:4.18.0-240.rt7.54.el8
0:4.18.0-240.rt7.54.el8
redhat/kernel<0:4.18.0-240.el8
0:4.18.0-240.el8
redhat/kernel<5.6.7
5.6.7
Linux Kernel<5.6.7
Linux Kernel>=4.18<4.19.118
Linux Kernel>=4.20<5.4.35
Linux Kernel>=5.5<5.6.7
NetApp Active IQ Unified Manager for VMware vSphere
NetApp Cloud Backup
NetApp HCI Baseboard Management Controller=h300s
NetApp HCI Baseboard Management Controller=h410c
NetApp HCI Baseboard Management Controller=h410s
NetApp HCI Baseboard Management Controller=h500s
NetApp HCI Baseboard Management Controller=h610c
NetApp HCI Baseboard Management Controller=h610s
NetApp HCI Baseboard Management Controller=h615c
NetApp HCI Baseboard Management Controller=h700s
NetApp SolidFire & HCI Management Node
NetApp SteelStore Cloud Integrated Storage
NetApp FAS/AFF Baseboard Management Controller=a700s
NetApp SolidFire
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.133-1
6.12.22-1

Remedy

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Remedy

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99e3a236dd43d06c65af0a2ef9cb44306aef6e02

Remedy

https://github.com/torvalds/linux/commit/99e3a236dd43d06c65af0a2ef9cb44306aef6e02

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2020-12659?

    CVE-2020-12659 is classified as a high severity vulnerability due to the potential for unauthorized out-of-bounds writes.

  • How do I fix CVE-2020-12659?

    To resolve CVE-2020-12659, upgrade to at least kernel version 5.6.7 or the relevant patched versions provided by your distribution.

  • Which Linux kernel versions are affected by CVE-2020-12659?

    CVE-2020-12659 affects Linux kernel versions prior to 5.6.7, including versions 4.18.x and 4.19.x.

  • What components are impacted by CVE-2020-12659?

    CVE-2020-12659 specifically affects the Network XDP subsystem within the Linux kernel.

  • Is user privilege required to exploit CVE-2020-12659?

    Yes, exploitation of CVE-2020-12659 requires CAP_NET_ADMIN capabilities.

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