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Information Exposure Affecting perf-debuginfo package, versions <0:4.14.88-88.73.amzn2

Severity

 Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-AMZN2-PERFDEBUGINFO-1667597
  • published27 Sept 2021
  • disclosed26 Nov 2018
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Introduced: 26 Nov 2018

CVE-2018-16862  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 perf-debuginfo to version 0:4.14.88-88.73.amzn2 or higher.
This issue was patched in ALAS2-2018-1133.

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:2 relevant fixed versions and status.

A security flaw was found in the Linux kernel in a way that the cleancache subsystem clears an inode after the final file truncation (removal). The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one.