7.8
CWE
119 843
Advisory Published
CVE Published
Updated

CVE-2020-10757: Buffer Overflow

First published: Mon Jun 01 2020(Updated: )

A flaw was found in the Linux Kernel in versions after 4.5-rc1 in the way mremap handled DAX Huge Pages. This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the system.

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

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-1127.18.2.rt56.1116.el7
0:3.10.0-1127.18.2.rt56.1116.el7
redhat/kernel<0:3.10.0-1127.18.2.el7
0:3.10.0-1127.18.2.el7
redhat/kernel<0:3.10.0-957.58.2.el7
0:3.10.0-957.58.2.el7
redhat/kernel<0:3.10.0-1062.33.1.el7
0:3.10.0-1062.33.1.el7
redhat/kernel-rt<0:4.18.0-193.13.2.rt13.65.el8_2
0:4.18.0-193.13.2.rt13.65.el8_2
redhat/kernel<0:4.18.0-193.13.2.el8_2
0:4.18.0-193.13.2.el8_2
redhat/kernel<0:4.18.0-80.27.1.el8_0
0:4.18.0-80.27.1.el8_0
redhat/kernel<0:4.18.0-147.24.2.el8_1
0:4.18.0-147.24.2.el8_1
Linux Kernel>=4.5<4.9.227
Linux Kernel>=4.10<4.14.184
Linux Kernel>=4.15<4.19.127
Linux Kernel>=4.20<5.4.45
Linux Kernel>=5.5<5.6.17
Linux Kernel>=5.7<5.7.1
openSUSE=15.1
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux=8.0
Red Hat Enterprise MRG=2.0
Fedoraproject Fedora=31
Debian GNU/Linux=8.0
Ubuntu Linux=16.04
Ubuntu Linux=18.04
Ubuntu Linux=20.04
NetApp Active IQ Unified Manager for VMware vSphere
netapp cloud backup
NetApp SteelStore
Linux Kernel>=4.5.1<=5.6.16
Linux Kernel=4.5-rc2
Linux Kernel=4.5-rc3
Linux Kernel=4.5-rc4
Linux Kernel=4.5-rc5
Linux Kernel=4.5-rc6
Linux Kernel=4.5-rc7
debian/linux
5.10.223-1
5.10.226-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.13-1

Remedy

Do not use DAX enabled storage.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2020-10757?

    CVE-2020-10757 has been classified with a medium severity level due to its potential for privilege escalation.

  • How do I fix CVE-2020-10757?

    To fix CVE-2020-10757, update your Linux Kernel to versions 3.10.0-1127.18.2.el7 or later, or follow your distribution's recommendations for patches.

  • Who is affected by CVE-2020-10757?

    CVE-2020-10757 affects versions of the Linux Kernel after 4.5-rc1, particularly systems using DAX enabled storage.

  • What type of vulnerability is CVE-2020-10757?

    CVE-2020-10757 is a privilege escalation vulnerability related to how the Linux Kernel handles DAX Huge Pages.

  • What is the impact of CVE-2020-10757?

    The impact of CVE-2020-10757 allows a local attacker to escalate their privileges on the system if they have access to vulnerable DAX enabled storage.

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