Out-of-bounds Write Affecting perf package, versions <0:4.14.225-121.357.amzn1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.09% (41st percentile)

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  • Snyk IDSNYK-AMZN201803-PERF-1725580
  • published27 Sept 2021
  • disclosed7 Mar 2021

Introduced: 7 Mar 2021

CVE-2021-27365  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 perf to version 0:4.14.225-121.357.amzn1 or higher.
This issue was patched in ALAS-2021-1487.

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.

An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.

CVSS Scores

version 3.1