Arbitrary Code Injection Affecting firefox package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.24% (65th percentile)

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  • Snyk IDSNYK-UBUNTU1604-FIREFOX-1314556
  • published25 Jun 2021
  • disclosed24 Jun 2021

Introduced: 24 Jun 2021

CVE-2021-29955  (opens in a new tab)
CWE-74  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:16.04 firefox.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A transient execution vulnerability, named Floating Point Value Injection (FPVI) allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. (A related vulnerability, Speculative Code Store Bypass (SCSB), did not affect Firefox.). This vulnerability affects Firefox ESR < 78.9 and Firefox < 87.

CVSS Scores

version 3.1