// For flags

CVE-2023-4056

Mozilla: Memory safety bugs fixed in Firefox 116, Firefox ESR 115.1, Firefox ESR 102.14, Thunderbird 115.1, and Thunderbird 102.14

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and Thunderbird 102.13. 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 < 102.14, and Firefox ESR < 115.1.

Fallos de seguridad de memoria presentes en Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0 y Thunderbird 102.13. 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 versiones inferiores de Firefox 116, Firefox ESR 102.14, y Firefox ESR 115.1.

The Mozilla Foundation Security Advisory describes this flaw as:

Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and Thunderbird 102.13. 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: Dianna Smith, Ryan VanderMeulen, Timothy Nikkel, and the Mozilla Fuzzing Team
CVSS Scores
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
  • 2024-10-22 CVE Updated
  • 2024-11-05 EPSS 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
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
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 Firefox Esr
Search vendor "Mozilla" for product "Firefox Esr"
 >= 102.0 < 102.14
Search vendor "Mozilla" for product "Firefox Esr" and version " >= 102.0 < 102.14"
-
Affected
Mozilla
Search vendor "Mozilla"
 Firefox Esr
Search vendor "Mozilla" for product "Firefox Esr"
 >= 115.0 < 115.1
Search vendor "Mozilla" for product "Firefox Esr" and version " >= 115.0 < 115.1"
-
Affected
Debian
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 Debian Linux
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 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Debian
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 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 11.0
Search vendor "Debian" for product "Debian Linux" and version "11.0"
-
Affected
Debian
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 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 12.0
Search vendor "Debian" for product "Debian Linux" and version "12.0"
-
Affected