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Improper Initialization Affecting perf package, versions <0:3.10.0-693.el7

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-RHEL7-PERF-4710740
  • published26 Jul 2021
  • disclosed12 May 2017
Report a new vulnerability Found a mistake?

Introduced: 12 May 2017

CVE-2017-7495  (opens in a new tab)
CWE-665  (opens in a new tab)

How to fix?

Upgrade RHEL:7 perf to version 0:3.10.0-693.el7 or higher.
This issue was patched in RHSA-2017:1842.

NVD Description

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

fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file.