// For flags

CVE-2024-3302

Mozilla: Denial of Service using HTTP/2 CONTINUATION frames

Severity Score

3.7
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

There was no limit to the number of HTTP/2 CONTINUATION frames that would be processed. A server could abuse this to create an Out of Memory condition in the browser. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.

No había límite para la cantidad de frames de CONTINUATION HTTP/2 que se procesarían. Un servidor podría abusar de esto para crear una condición de falta de memoria en el navegador. Esta vulnerabilidad afecta a Firefox &lt; 125 y Firefox ESR &lt; 115.10.

The Mozilla Foundation Security Advisory describes this flaw as: There was no limit to the number of HTTP/2 CONTINUATION frames that would be processed. A server could abuse this to create an Out of Memory condition in the browser.

USN-6747-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update fixes the problem. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. Bartek Nowotarski discovered that Firefox did not properly limit HTTP/2 CONTINUATION frames. An attacker could potentially exploit this issue to cause a denial of service. Gary Kwong discovered that Firefox did not properly manage memory when running garbage collection during realm initialization. An attacker could potentially exploit this issue to cause a denial of service, or execute arbitrary code. Lukas Bernhard discovered that Firefox did not properly manage memory during JIT optimizations, leading to an out-of-bounds read vulnerability. An attacker could possibly use this issue to cause a denial of service or expose sensitive information. Nan Wang discovered that Firefox did not properly manage memory during WASM garbage collection. An attacker could potentially exploit this issue to cause a denial of service, or execute arbitrary code. Various other issues were also addressed.

*Credits: Bartek Nowotarski via CERT
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
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
High
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-04-04 CVE Reserved
  • 2024-04-16 CVE Published
  • 2025-03-28 CVE Updated
  • 2025-04-02 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-770: Allocation of Resources Without Limits or Throttling
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
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Centos
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Centos
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Affected
Mozilla
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Firefox
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Affected
Mozilla
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Firefox Esr
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Affected
Mozilla
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Thunderbird
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Affected
Oracle
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Linux
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Affected
Redhat
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Enterprise Linux
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Affected
Redhat
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Rhel Aus
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Affected
Redhat
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Rhel E4s
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Affected
Redhat
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Rhel Eus
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Redhat
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Rhel Tus
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Amazon
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Linux
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Canonical
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Ubuntu Linux
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Centos
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Centos
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Debian
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Debian Linux
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Fedoraproject
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Fedora
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Opensuse
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Leap
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Oracle
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Linux
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Redhat
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Enterprise Linux
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Redhat
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Rhel Aus
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Redhat
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Rhel E4s
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Redhat
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Rhel Eus
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Redhat
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Rhel Tus
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Rocky
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Linux
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Slackware
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Slackware Linux
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Suse
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Packagehub
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Affected
Suse
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Sle-module-desktop-applications
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Suse
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Sle-sdk
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Suse
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Sle-we
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Suse
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Sle Hpc-espos
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Suse
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Sle Hpc-ltss
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Suse
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Sle Hpc
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Suse
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Sled
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Suse
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Sles-ltss
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Suse
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Sles
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Suse
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Sles Sap
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Affected