Reliance on Untrusted Inputs in a Security Decision Affecting dotnet-hostfxr-3.1 package, versions <0:3.1.8-2.el8_2


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.14% (50th percentile)

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  • Snyk IDSNYK-RHEL8-DOTNETHOSTFXR31-3815963
  • published26 Jul 2021
  • disclosed1 Jul 2020

Introduced: 1 Jul 2020

CVE-2020-1045  (opens in a new tab)
CWE-807  (opens in a new tab)

How to fix?

Upgrade RHEL:8 dotnet-hostfxr-3.1 to version 0:3.1.8-2.el8_2 or higher.
This issue was patched in RHSA-2020:3699.

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.

<p>A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.</p> <p>The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded.</p> <p>The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.</p>

CVSS Scores

version 3.1