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Out-of-bounds Write Affecting firefox package, versions <78.0-1

0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.26% (66th percentile)
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NVD
8.8 high
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Red Hat
8.8 high
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SUSE
8.8 high

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-574965
  • published 1 Jul 2020
  • disclosed 9 Jul 2020
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Introduced: 1 Jul 2020

CVE-2020-12422 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade Debian:unstable firefox to version 78.0-1 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.

In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable to overflow, resulting in an out of bounds write, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 78.