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Improper Restriction of Rendered UI Layers or Frames Affecting chromium-browser package, versions <89.0.4389.82-0ubuntu0.18.04.1

Severity

 Recommended
0.0
medium
0
10

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.27% (69th percentile)

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  • Snyk ID SNYK-UBUNTU1804-CHROMIUMBROWSER-1063399
  • published 21 Jan 2021
  • disclosed 9 Feb 2021
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Introduced: 21 Jan 2021

CVE-2021-21139 Open this link in a new tab
CWE-1021 Open this link in a new tab

How to fix?

Upgrade Ubuntu:18.04 chromium-browser to version 89.0.4389.82-0ubuntu0.18.04.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream chromium-browser package and not the chromium-browser package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

Inappropriate implementation in iframe sandbox in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page.

CVSS Scores

version 3.1
Expand this section

NVD

6.5 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    High
  • Availability (A)
    None