Out-of-bounds Write Affecting firefox-esr package, versions <115.1.0esr-1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.25% (66th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOXESR-5813276
  • published2 Aug 2023
  • disclosed1 Aug 2023

Introduced: 1 Aug 2023

CVE-2023-4056  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox-esr to version 115.1.0esr-1 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:unstable relevant fixed versions and status.

Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and Thunderbird 102.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

CVSS Scores

version 3.1