CVE-2019-11758

Mozilla: Potentially exploitable crash due to 360 Total Security

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Mozilla community member Philipp reported a memory safety bug present in Firefox 68 when 360 Total Security was installed. This bug showed evidence of memory corruption in the accessibility engine and we presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Firefox < 69, Thunderbird < 68.2, and Firefox ESR < 68.2.

Philipp, miembro de la comunidad de Mozilla, reportó un bug de seguridad de la memoria presente en Firefox versión 68 cuando 360 Total Security fue instalado. Este bug mostró evidencia de corrupción de memoria en el motor de accesibilidad y suponemos que con un esfuerzo suficiente podría ser explotado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox versiones anteriores a la versión 69, Thunderbird versiones anteriores a la versión 68.2 y Firefox ESR versiones anteriores a la versión 68.2.

A flaw was found in the 360 Total Security code in Firefox and Thunderbird. Memory corruption is possible in the accessibility engine that could lead to an exploit to run arbitrary code. This vulnerability could be exploited over a network connection and would affect confidentiality and integrity of information as well as availability of the system.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-05-03 CVE Reserved
2019-10-23 CVE Published
2023-05-13 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-122: Heap-based Buffer Overflow
CWE-787: Out-of-bounds Write

CAPEC

References (7)

URL	Tag	Source

URL	Date	SRC
https://bugzilla.mozilla.org/show_bug.cgi?id=1536227	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://usn.ubuntu.com/4335-1	2022-04-22
https://www.mozilla.org/security/advisories/mfsa2019-25	2022-04-22
https://www.mozilla.org/security/advisories/mfsa2019-33	2022-04-22
https://www.mozilla.org/security/advisories/mfsa2019-35	2022-04-22
https://access.redhat.com/security/cve/CVE-2019-11758	2019-11-06
https://bugzilla.redhat.com/show_bug.cgi?id=1764439	2019-11-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				< 69.0 Search vendor "Mozilla" for product "Firefox" and version " < 69.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 68.2 Search vendor "Mozilla" for product "Firefox Esr" and version " < 68.2"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 68.2 Search vendor "Mozilla" for product "Thunderbird" and version " < 68.2"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		esm		Affected