// For flags

CVE-2023-25746

Mozilla: Memory safety bugs fixed in Firefox ESR 102.8

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

Memory safety bugs present in Firefox ESR 102.7. 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 Thunderbird < 102.8 and Firefox ESR < 102.8.

The Mozilla Foundation Security Advisory describes this flaw as: Mozilla developers Philipp and Gabriele Svelto reported memory safety bugs present in Firefox ESR 102.7. 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.

An update that fixes 14 vulnerabilities is now available. This update for MozillaFirefox fixes the following issues. Updated to version 102.8.0 ESR. Fixed content security policy leak in violation reports using iframes. Fixed screen hijack via browser fullscreen mode. Fixed Fullscreen notification not being shown in Firefox Focus. Fixed arbitrary memory write via PKCS 12 in NSS. Fixed potential use-after-free from compartment mismatch in SpiderMonkey. Fixed invalid downcast in SVGUtils::SetupStrokeGeometry. Fixed printing on Windows which could potentially crash Firefox with some device drivers. Fixed use-after-free in mozilla::dom::ScriptLoadContext::~ScriptLoadContext. Fixed extensions opening external schemes without user knowledge. Fixed out of bounds memory write from EncodeInputStream. Fixed opening local .url files that causes unexpected network loads. Fixed tab crash by Web Crypto ImportKey. Fixed Memory safety bugs. Fixed Memory safety bugs.

*Credits: N/A
CVSS Scores
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
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2023-02-13 CVE Reserved
  • 2023-02-16 CVE Published
  • 2025-01-09 CVE Updated
  • 2025-04-15 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 Esr
Search vendor "Mozilla" for product "Firefox Esr"
< 102.8
Search vendor "Mozilla" for product "Firefox Esr" and version " < 102.8"
-
Affected
Mozilla
Search vendor "Mozilla"
Thunderbird
Search vendor "Mozilla" for product "Thunderbird"
< 102.8
Search vendor "Mozilla" for product "Thunderbird" and version " < 102.8"
-
Affected