// For flags

CVE-2017-7749

Mozilla: Use-after-free during docshell reloading (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 vulnerability when using an incorrect URL during the reloading of a docshell. This results 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 al emplear una URL incorrecta durante la recarga de un docshell. Esto resulta 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
Attack Vector
Network
Attack Complexity
High
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
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
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-
Affected
Redhat
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Enterprise Linux
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6.0
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-
Affected
Redhat
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Enterprise Linux
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7.0
Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"
-
Affected
Redhat
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Enterprise Linux Desktop
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6.0
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-
Affected
Redhat
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Enterprise Linux Desktop
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7.0
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-
Affected
Redhat
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Enterprise Linux Server
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6.0
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-
Affected
Redhat
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Enterprise Linux Server
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7.0
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-
Affected
Redhat
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Enterprise Linux Server Aus
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7.3
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-
Affected
Redhat
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Enterprise Linux Server Aus
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7.4
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-
Affected
Redhat
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Enterprise Linux Server Eus
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7.3
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Affected
Redhat
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Enterprise Linux Server Eus
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7.4
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Affected
Redhat
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Enterprise Linux Server Eus
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7.5
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Affected
Redhat
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Enterprise Linux Workstation
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6.0
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Affected
Redhat
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Enterprise Linux Workstation
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7.0
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-
Affected
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