CVEvulnerability

CVE-2020-15667

8.8 HIGH Published 2020-10-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-10-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-787

Description

When processing a MAR update file, after the signature has been validated, an invalid name length could result in a heap overflow, leading to memory corruption and potentially arbitrary code execution. Within Firefox as released by Mozilla, this issue is only exploitable with the Mozilla-controlled signing key. This vulnerability affects Firefox < 80.

Affected configurations

• mozilla firefox (< 80.0)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References