CVE-2023-4057

Mozilla: Memory safety bugs fixed in Firefox ESR 115.1, and Thunderbird 115.1

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.

Fallos de seguridad de memoria presentes en Firefox 115, Firefox ESR 115.0 y Thunderbird 115.0. Algunos de estos fallos mostraban evidencias de corrupción de memoria y suponemos que con el suficiente esfuerzo algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. Esta vulnerabilidad afecta a las versiones anteriores de Firefox 116, Firefox ESR 115.1, y Thunderbird 115.1.

The Mozilla Foundation Security Advisory describes this flaw as:

Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.

*Credits: The Mozilla Fuzzing Team

CVSS Scores

NISTv3.1 9.8

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2023-08-01 CVE Reserved
2023-08-01 CVE Published
2024-09-02 EPSS Updated
2024-10-22 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787: Out-of-bounds Write

CAPEC

References (5)

URL	Tag	Source
https://www.mozilla.org/security/advisories/mfsa2023-33

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.mozilla.org/security/advisories/mfsa2023-29	2023-08-07
https://www.mozilla.org/security/advisories/mfsa2023-31	2023-08-07
https://access.redhat.com/security/cve/CVE-2023-4057	2023-08-07
https://bugzilla.redhat.com/show_bug.cgi?id=2228371	2023-08-07

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"				< 116.0 Search vendor "Mozilla" for product "Firefox" and version " < 116.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 115.1 Search vendor "Mozilla" for product "Firefox Esr" and version " < 115.1"		-		Affected