Information Exposure Affecting firefox-esr package, versions <68.9.0esr-1~deb8u2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-DEBIAN8-FIREFOXESR-570853
  • published20 May 2020
  • disclosed9 Jul 2020

Introduced: 20 May 2020

CVE-2020-12399  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade Debian:8 firefox-esr to version 68.9.0esr-1~deb8u2 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.

NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

CVSS Scores

version 3.1