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Out-of-Bounds Affecting firefox-esr package, versions <60.6.0esr-1~deb8u1

Severity

 Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.6% (80th percentile)

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  • Snyk IDSNYK-DEBIAN8-FIREFOXESR-340892
  • published20 Mar 2019
  • disclosed26 Apr 2019
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Introduced: 20 Mar 2019

CVE-2019-9793  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Debian:8 firefox-esr to version 60.6.0esr-1~deb8u1 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:8 relevant fixed versions and status.

A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if Spectre mitigations have been disabled. This vulnerability could allow an attacker to create an arbitrary value in compiled JavaScript, for which the range analysis will infer a fully controlled, incorrect range in circumstances where users have explicitly disabled Spectre mitigations. Note: Spectre mitigations are currently enabled for all users by default settings.. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.