CVE-2019-11740 — Out-of-bounds Write in Mozilla Firefox

CWE-787 — Out-of-bounds WriteCWE-120 — Classic Buffer OverflowCWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer14 documents8 sources
Severity
8.8HIGHNVD
OSV9.8OSV6.5
EPSS
1.5%
top 18.83%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird+2 more
Timeline
PublishedSep 27
Latest updateMay 24

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 68, Firefox ESR 68, and Firefox 60.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.

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 Packages10 packages

▶CVEListV5mozilla/firefoxunspecified — 69
▶NVDmozilla/firefox< 60.9.0+1
▶CVEListV5mozilla/firefox_esrunspecified — 60.9+1
▶NVDmozilla/firefox_esr68.0 — 68.1.0
▶Ubuntumozilla/firefox< 69.0+build2-0ubuntu0.16.04.4+3

Also affects: Ubuntu Linux 16.04, 18.04, 19.04

🔴Vulnerability Details

6
GHSA
GHSA-6wqx-grg2-grhw: Mozilla developers and community members reported memory safety bugs present in Firefox 68, Firefox ESR 68, and Firefox 60↗2022-05-24
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OSV
thunderbird vulnerabilities↗2019-10-08
▶
OSV
firefox regression↗2019-10-08
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CVEList
CVE-2019-11740: Mozilla developers and community members reported memory safety bugs present in Firefox 68, Firefox ESR 68, and Firefox 60↗2019-09-27
▶
OSV
CVE-2019-11740: Mozilla developers and community members reported memory safety bugs present in Firefox 68, Firefox ESR 68, and Firefox 60↗2019-09-27
▶

📋Vendor Advisories

5
Ubuntu
Thunderbird vulnerabilities↗2019-10-08
▶
Ubuntu
Firefox regression↗2019-10-08
▶
Ubuntu
Firefox vulnerabilities↗2019-09-04
▶
Red Hat
Mozilla: Memory safety bugs fixed in Firefox 69, Firefox ESR 68.1, Firefox ESR 60.9, Thunderbird 68.1, and Thunderbird 60.9↗2019-09-03
▶
Debian
CVE-2019-11740: firefox - Mozilla developers and community members reported memory safety bugs present in ...↗2019
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💬Community

2
Bugzilla
CVE-2019-11740 Mozilla: Memory safety bugs fixed in Firefox 69, Firefox ESR 68.1, Firefox ESR 60.9, Thunderbird 68.1, and Thunderbird 60.9↗2019-09-04
▶
Bugzilla
Firefox 69.0 is available↗2019-09-03
▶
CVE-2019-11740 — Out-of-bounds Write in Mozilla Firefox | cvebase