// For flags

CVE-2023-4573

Mozilla: Memory corruption in IPC CanvasTranslator

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.

Al recibir datos de representación a través de IPC, `mStream` podría haberse destruido al inicializarse, lo que podría haber dado lugar a un uso después de la liberación que provocaría un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox &lt; 117, Firefox ESR &lt; 102.15, Firefox ESR &lt; 115.2 y Thunderbird &lt; 115.2.

The Mozilla Foundation Security Advisory describes this flaw as: When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash.

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass security restrictions, cross-site tracing, or execute arbitrary code. It was discovered that Thunderbird did not properly manage memory when handling WebP images. If a user were tricked into opening a malicious WebP image file, an attacker could potentially exploit these to cause a denial of service or execute arbitrary code.

*Credits: sonakkbi
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-08-29 CVE Reserved
  • 2023-08-30 CVE Published
  • 2024-09-26 CVE Updated
  • 2025-04-15 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
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Firefox
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< 117.0
Search vendor "Mozilla" for product "Firefox" and version " < 117.0"
-
Affected
Mozilla
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Firefox Esr
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< 102.15
Search vendor "Mozilla" for product "Firefox Esr" and version " < 102.15"
-
Affected
Mozilla
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Firefox Esr
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>= 115.0 < 115.2
Search vendor "Mozilla" for product "Firefox Esr" and version " >= 115.0 < 115.2"
-
Affected
Mozilla
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Thunderbird
Search vendor "Mozilla" for product "Thunderbird"
< 115.2
Search vendor "Mozilla" for product "Thunderbird" and version " < 115.2"
-
Affected