Improper Handling of Length Parameter Inconsistency Affecting dotnet-hostfxr-3.1 package, versions <0:3.1.23-1.el8_5


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.39% (87th percentile)

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  • Snyk IDSNYK-RHEL8-DOTNETHOSTFXR31-4197905
  • published26 Jul 2021
  • disclosed27 Aug 2020

Introduced: 27 Aug 2020

CVE-2020-8927  (opens in a new tab)
CWE-130  (opens in a new tab)

How to fix?

Upgrade RHEL:8 dotnet-hostfxr-3.1 to version 0:3.1.23-1.el8_5 or higher.
This issue was patched in RHSA-2022:0827.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dotnet-hostfxr-3.1 package and not the dotnet-hostfxr-3.1 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

References

CVSS Scores

version 3.1