CVE-2024-3859

Medium

Description

On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.

SeverityMedium
CVSS5.9
Exploit probability—
ProductMozilla Firefox
PublishedApr 16, 2024
First seenApr 16, 2024

How to fix

Update
  • mozilla firefox115.10, 125.0 or later
  • mozilla thunderbird115.10 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 115.10, v < 125.0115.10, 125.0
mozilla thunderbirdv < 115.10115.10
debian debian_linux10.0—

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