CVE-2019-17021

MEDIUM

Firefox < 72.0 and Firefox ESR < 68.4 - Heap Address Disclosure via Content Process Initialization Race Condition

Title source: llm
STIX 2.1

Description

During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

References (7)

Core 7
Core References
Exploit, Issue Tracking, Permissions Required x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1599008
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2020-01/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2020-02/
Mailing List, Third Party Advisory mailing-list x_refsource_bugtraq
https://seclists.org/bugtraq/2020/Jan/18
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.html

Scores

CVSS v3 5.3
EPSS 0.0047
EPSS Percentile 64.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Details

CWE
CWE-362
Status published
Products (3)
mozilla/firefox < 72.0
mozilla/firefox_esr < 68.4
opensuse/leap 15.1
Published Jan 08, 2020
Tracked Since Feb 18, 2026