TI-2016-07420 Aliases CVE-2016-9066 GHSA-m65c-6q88-9x7g

Memory corruption in Mozilla Thunderbird

MEDIUM 47CWE-119Published 2018-06-11 · Updated 2024-08-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

A buffer overflow resulting in a potentially exploitable crash due to memory allocation issues when handling large amounts of incoming data. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.

Why it matters now

EPSS 0.12024 96th percentileScored 2026-11-07

Fix Fixed Thunderbird (Mozilla): 45.5Firefox ESR (Mozilla): 45.5+1 more productRed Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Mozilla	Thunderbird	before 45.5	45.5	Patch available	CNA
Mozilla	Firefox ESR	before 45.5	45.5	Patch available	CNA
Mozilla	Firefox	before 50	50	Patch available	CNA

Thunderbird VendorMozilla Affected before 45.5 Fixed in 45.5 Patch available CNA
Firefox ESR VendorMozilla Affected before 45.5 Fixed in 45.5 Patch available CNA
Firefox VendorMozilla Affected before 50 Fixed in 50 Patch available CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:mozilla:firefox::::::::	before 45.5.0; before 50.0	Vulnerable	Mozilla
cpe:2.3:a:mozilla:thunderbird::::::::	before 45.5.0	Vulnerable	Mozilla
cpe:2.3:o:debian:debian_linux:8.0:::::::*	8.0	Vulnerable	Debian

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 45.5.0; before 50.0 Vulnerable ·Mozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 45.5.0 Vulnerable ·Mozilla
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian

Remediation

Fix · CNA Thunderbird (Mozilla) Fixed in 45.5
Fix · CNA Firefox ESR (Mozilla) Fixed in 45.5
Fix · CNA Firefox (Mozilla) Fixed in 50

Red Hat 1 advisory

RHSA-2016:2780 Released 2016-11-16 · Red Hat rating Critical
firefox security update
- Red Hat Enterprise Linux (v. 5 server) firefox-45.5.0-1.el5_11, firefox-45.5.0-1.el5_11.i386
- Red Hat Enterprise Linux Client (v. 7) firefox-45.5.0-1.el7_3
- Red Hat Enterprise Linux Client Optional (v. 7) firefox-45.5.0-1.el7_3
- Red Hat Enterprise Linux Desktop (v. 5 client) firefox-45.5.0-1.el5_11, firefox-45.5.0-1.el5_11.i386
- Red Hat Enterprise Linux Desktop (v. 6) firefox-45.5.0-1.el6_8
- Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-45.5.0-1.el6_8
- Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox-45.5.0-1.el6_8
- Red Hat Enterprise Linux Server (v. 6) firefox-45.5.0-1.el6_8
- Red Hat Enterprise Linux Server (v. 7) firefox-45.5.0-1.el7_3
- Red Hat Enterprise Linux Server Optional (v. 6) firefox-45.5.0-1.el6_8, firefox-45.5.0-1.el6_8.ppc
- Red Hat Enterprise Linux Server Optional (v. 7) firefox-45.5.0-1.el7_3, firefox-45.5.0-1.el7_3.ppc
- Red Hat Enterprise Linux Workstation (v. 6) firefox-45.5.0-1.el6_8
- Red Hat Enterprise Linux Workstation (v. 7) firefox-45.5.0-1.el7_3
- Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-45.5.0-1.el6_8
- Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-45.5.0-1.el7_3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2018-06-11
Mozilla Firefox, Firefox ESR, Thunderbird — DSA-3730
7 records Highest priority Priority CRITICAL 1 CRITICAL, 3 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2016-07433 Use after free in Mozilla FirefoxPriority CRITICAL 90
- TI-2016-04593 Integer overflow in Mozilla ThunderbirdPriority MEDIUM 48
- TI-2016-04586 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 48
Show all 7 records → Advisory →
Advisory · 2018-06-11
Mozilla Firefox, Firefox ESR, Thunderbird — RHSA-2016:2780
6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2016-04593 Integer overflow in Mozilla ThunderbirdPriority MEDIUM 48
- TI-2016-04586 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 48
- TI-2016-04592 Memory corruption in Mozilla ThunderbirdPriority LOW 39
Show all 6 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux (v. 5 server)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Client (v. 7)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Client Optional (v. 7)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Desktop (v. 5 client)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Desktop (v. 6)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Desktop Optional (v. 6)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux HPC Node Optional (v. 6)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Server (v. 6)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Server (v. 7)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Server Optional (v. 6)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Server Optional (v. 7)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Workstation (v. 6)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Workstation (v. 7)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Workstation Optional (v. 6)	Fixed	RHSA-2016:2780
Red Hat Enterprise Linux Workstation Optional (v. 7)	Fixed	RHSA-2016:2780

Not affected: 3 products

Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7

Timeline

2026-10-02 Threatist record created from CVE-2016-9066
2026-10-03 Alias added: GHSA-m65c-6q88-9x7g

References

Advisory 7

TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8

See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences