Race Condition Affecting perf-debuginfo package, versions <0:4.14.101-75.76.amzn1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
3.06% (92nd percentile)

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  • Snyk IDSNYK-AMZN201803-PERFDEBUGINFO-1717848
  • published27 Sept 2021
  • disclosed15 Feb 2019

Introduced: 15 Feb 2019

CVE-2019-6974  (opens in a new tab)
CWE-362  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 perf-debuginfo to version 0:4.14.101-75.76.amzn1 or higher.
This issue was patched in ALAS-2019-1165.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf-debuginfo package and not the perf-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

In the Linux kernel before 4.20.8, kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandles reference counting because of a race condition, leading to a use-after-free.

References

CVSS Scores

version 3.1