CVE-2024-4770

Published: May 14, 2024Modified: Apr 1, 2025

8.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 2.8 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

When saving a page to PDF, certain font styles could have led to a potential use-after-free crash. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.

Affected (3)

Products: Mozilla: Firefox, Thunderbird

Mozilla

2 products

Firefox

Thunderbird

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Mozilla Firefox	Before 126.0
Mozilla Firefox	Before 115.11.0
Mozilla Thunderbird	Before 115.11.0

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (12)

https://bugzilla.mozilla.org/show_bug.cgi?id=1893270

Source: security@mozilla.org

ExploitIssue TrackingVendor Advisory

https://lists.debian.org/debian-lts-announce/2024/05/msg00010.html

Source: security@mozilla.org

Mailing List

https://lists.debian.org/debian-lts-announce/2024/05/msg00012.html

Source: security@mozilla.org

Mailing List

https://www.mozilla.org/security/advisories/mfsa2024-21/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2024-22/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2024-23/

Source: security@mozilla.org

Vendor Advisory

https://bugzilla.mozilla.org/show_bug.cgi?id=1893270