Out-of-bounds Write Affecting firefox package, versions <63.0-1


0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.94% (83rd percentile)
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NVD
7.5 high
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SUSE
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-422536
  • published 28 Oct 2018
  • disclosed 28 Feb 2019

How to fix?

Upgrade Debian:unstable firefox to version 63.0-1 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.

A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. Note: 64-bit builds are not vulnerable to this issue.. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.