CVE-2020-10757

HIGHCVSS 7.8/10EPSS 0.99%

Last modified

CVE-2020-10757 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.99% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.99%

58.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 4.5, < 4.9.227
LinuxLinux Kernel>= 4.10, < 4.14.184
LinuxLinux Kernel>= 4.15, < 4.19.127
LinuxLinux Kernel>= 4.20, < 5.4.45
LinuxLinux Kernel>= 5.5, < 5.6.17
LinuxLinux Kernel>= 5.7, < 5.7.1
OpensuseLeap15.1
RedhatEnterprise Linux7.0
RedhatEnterprise Linux8.0
RedhatEnterprise Mrg2.0
FedoraprojectFedora31
DebianDebian Linux8.0
CanonicalUbuntu Linux16.04
CanonicalUbuntu Linux18.04
CanonicalUbuntu Linux20.04
NetappActive Iq Unified ManagerAll versions
NetappCloud BackupAll versions
NetappSteelstore Cloud Integrated StorageAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-10757?
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.
How severe is CVE-2020-10757?
CVE-2020-10757 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.99% probability of exploitation in the next 30 days.
How do I fix CVE-2020-10757?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-10757?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST