CVE-2019-11764 — Out-of-bounds Write in Mozilla Firefox

CWE-787 — Out-of-bounds WriteCWE-120 — Classic Buffer OverflowCWE-416 — Use After Free14 documents8 sources
Severity
8.8HIGHNVD
OSV7.5
EPSS
1.0%
top 23.25%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Mozilla ThunderbirdMozilla FirefoxMozilla Firefox ESR+1 more
Timeline
PublishedJan 8
Latest updateMay 24

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 69 and Firefox ESR 68.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages8 packages

▶NVDmozilla/firefox< 70.0
▶CVEListV5mozilla/firefoxbefore 70
▶CVEListV5mozilla/firefox_esrbefore 68.2

Also affects: Ubuntu Linux 16.04

🔴Vulnerability Details

6
GHSA
GHSA-w7c5-4mj7-2cm2: Mozilla developers and community members reported memory safety bugs present in Firefox 69 and Firefox ESR 68↗2022-05-24
▶
OSV
thunderbird vulnerabilities↗2020-04-21
▶
CVEList
CVE-2019-11764: Mozilla developers and community members reported memory safety bugs present in Firefox 69 and Firefox ESR 68↗2020-01-08
▶
OSV
CVE-2019-11764: Mozilla developers and community members reported memory safety bugs present in Firefox 69 and Firefox ESR 68↗2020-01-08
▶
OSV
thunderbird regression↗2019-12-10
▶

📋Vendor Advisories

6
Ubuntu
Thunderbird vulnerabilities↗2020-04-21
▶
Ubuntu
Thunderbird regression↗2019-12-10
▶
Ubuntu
Thunderbird vulnerabilities↗2019-11-26
▶
Ubuntu
Firefox vulnerabilities↗2019-10-23
▶
Red Hat
Mozilla: Memory safety bugs fixed in Firefox 70 and Firefox ESR 68.2↗2019-10-22
▶

💬Community

1
Bugzilla
CVE-2019-11764 Mozilla: Memory safety bugs fixed in Firefox 70 and Firefox ESR 68.2↗2019-10-23
▶
CVE-2019-11764 — Out-of-bounds Write in Mozilla Firefox | cvebase