Use After Free Affecting torvalds/linux package, versions [,5.7)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (19th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3005997
  • published26 Jan 2022
  • disclosed7 Apr 2021
  • creditUnknown

Introduced: 7 Apr 2021

CVE-2020-36313  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.7 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free. An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, include/linux/kvm_host.h, and virt/kvm/kvm_main.c.

References

CVSS Base Scores

version 3.1