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Out-of-Bounds Affecting firefox package, versions <75.0-1

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High

    Threat Intelligence

    EPSS 0.21% (59th percentile)
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NVD
7.5 high
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SUSE
5.9 medium
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Red Hat
7.5 high

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-564636
  • published 7 Apr 2020
  • disclosed 24 Apr 2020
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Introduced: 7 Apr 2020

CVE-2020-6821 Open this link in a new tab
CWE-119 Open this link in a new tab

How to fix?

Upgrade Debian:unstable firefox to version 75.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.