// For flags

CVE-2017-5447

Mozilla Firefox < 53 - 'gfxTextRun' Out-of-Bounds Read

Severity Score

9.1
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An out-of-bounds read during the processing of glyph widths during text layout. This results in a potentially exploitable crash and could allow an attacker to read otherwise inaccessible memory. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

Lectura fuera de límites durante el procesamiento de anchos de glifo durante el diseño de texto. Esto resulta en un cierre inesperado potencialmente explotable y podría permitir que un atacante lea datos de la memoria que, de otra forma, serían inaccesibles. La vulnerabilidad afecta a Thunderbird en versiones anteriores a la 52.1, Firefox ESR en versiones anteriores a la 45.9, Firefox en versiones anteriores a la 52.1 y Firefox en versiones anteriores a la 53.

gfxTextRun in Mozilla Firefox suffers from a heap overflow vulnerability.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-01-13 CVE Reserved
  • 2017-04-20 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • 2024-09-14 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
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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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
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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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< 53.0
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Affected
Mozilla
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Firefox Esr
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< 45.9.0
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Affected
Mozilla
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Firefox Esr
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52.0
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Affected
Mozilla
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Thunderbird
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< 52.1.0
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Affected