Race Condition Affecting perf package, versions <0:4.9.43-17.38.amzn1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.05% (22nd percentile)

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  • Snyk IDSNYK-AMZN201803-PERF-1707587
  • published27 Sept 2021
  • disclosed5 Aug 2017

Introduced: 5 Aug 2017

CVE-2017-7533  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 perf to version 0:4.9.43-17.38.amzn1 or higher.
This issue was patched in ALAS-2017-870.

NVD Description

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

Race condition in the fsnotify implementation in the Linux kernel through 4.12.4 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted application that leverages simultaneous execution of the inotify_handle_event and vfs_rename functions.

CVSS Scores

version 3.1