Out-of-bounds Read Affecting firefox package, versions <74.0-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
52.58% (98th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOX-559679
  • published10 Mar 2020
  • disclosed25 Mar 2020

Introduced: 10 Mar 2020

CVE-2020-6806  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox to version 74.0-1 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.

By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

CVSS Scores

version 3.1