CVE-2020-12422

HIGH

Firefox < 78.0 - Out-of-bounds Write via JPEG Image Processing

Title source: llm
STIX 2.1

Description

In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable to overflow, resulting in an out of bounds write, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 78.

References (5)

Core 5
Core References
Issue Tracking, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1450353
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202007-10

Scores

CVSS v3 8.8
EPSS 0.0062
EPSS Percentile 70.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (3)
mozilla/firefox < 78.0
opensuse/leap 15.1
opensuse/leap 15.2
Published Jul 09, 2020
Tracked Since Feb 18, 2026