Out-of-Bounds Affecting firefox-esr package, versions <68.7.0esr-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.21% (60th percentile)

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  • Snyk IDSNYK-DEBIAN11-FIREFOXESR-564618
  • published7 Apr 2020
  • disclosed24 Apr 2020

Introduced: 7 Apr 2020

CVE-2020-6821  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Debian:11 firefox-esr to version 68.7.0esr-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:11 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.

CVSS Scores

version 3.1