// For flags

CVE-2017-7756

Mozilla: Use-after-free and use-after-scope logging XHR header errors (MFSA 2017-16)

Severity Score

9.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR). This could result in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Vulnerabilidad de uso de memoria previamente liberada y "use-after-scope" al registrar errores de las cabeceras XHR (XML HTTP Request). Esto podrĂ­a resultar en un cierre inesperado potencialmente explotable. La vulnerabilidad afecta a Firefox en versiones anteriores a la 54, Firefox ESR en versiones anteriores a la 52.2 y Thunderbird en versiones anteriores a la 52.2.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-04-12 CVE Reserved
  • 2017-06-14 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-09-14 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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< 54.0
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-
Affected
Mozilla
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Firefox Esr
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< 52.2.0
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-
Affected
Mozilla
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Thunderbird
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< 52.2.0
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-
Affected
Debian
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Debian Linux
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8.0
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-
Affected
Debian
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Debian Linux
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9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected