// For flags

CVE-2017-7753

Mozilla: Out-of-bounds read with cached style data and pseudo-elements (MFSA 2017-19)

Severity Score

9.1
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An out-of-bounds read occurs when applying style rules to pseudo-elements, such as ::first-line, using cached style data. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

Ocurre una lectura fuera de límites al aplicar reglas de estilo a pseudo-elementos, como ::first-line, mediante el uso de datos de estilo en caché. La vulnerabilidad afecta a Thunderbird en versiones anteriores a la 52.3, Firefox ESR en versiones anteriores a la 52.3 y Firefox en versiones anteriores a la 55.

*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
  • 2017-04-12 CVE Reserved
  • 2017-08-10 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-125: Out-of-bounds Read
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
Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"
-
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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< 55.0
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-
Affected
Mozilla
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Firefox Esr
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< 52.3.0
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-
Affected
Mozilla
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Thunderbird
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< 52.3.0
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-
Affected