Race Condition Affecting kernel-bootwrapper package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELBOOTWRAPPER-2020944
  • published26 Jul 2021
  • disclosed16 Mar 2021

Introduced: 16 Mar 2021

CVE-2021-28964  (opens in a new tab)
CWE-362  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 kernel-bootwrapper.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc.

CVSS Scores

version 3.1