CVE-2024-11704

CRITICAL

Firefox < 133 - Memory Corruption

Title source: llm

Description

A double-free issue could have occurred in `sec_pkcs7_decoder_start_decrypt()` when handling an error path. Under specific conditions, the same symmetric key could have been freed twice, potentially leading to memory corruption. This vulnerability affects Firefox < 133, Thunderbird < 133, Firefox ESR < 128.7, and Thunderbird < 128.7.

References (7)

[Mailing List] https://lists.debian.org/debian-lts-announce/2025/02/msg00005.html

[Mailing List] https://lists.debian.org/debian-lts-announce/2025/02/msg00006.html

[Issue Tracking, Permissions Required] https://bugzilla.mozilla.org/show_bug.cgi?id=1899402

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2024-63/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2024-67/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2025-09/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2025-10/

Scores

CVSS v3 9.8

EPSS 0.0020

EPSS Percentile 41.9%

Attack Vector NETWORK

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

Classification

CWE

CWE-415

Status published

Affected Products (3)

mozilla/firefox < 128.7.0

mozilla/firefox < 133.0

mozilla/thunderbird < 128.7.0

Timeline

Published Nov 26, 2024

Tracked Since Feb 18, 2026