// For flags

CVE-2018-18498

Mozilla: Integer overflow when calculating buffer sizes for images

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 potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a raw value is used instead of the checked value. This leads to a possible out-of-bounds write. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

Puede ocurrir una vulnerabilidad potencial que conduce a un desbordamiento de enteros durante los cálculos de tamaño de búfer cuando se emplea un valor bruto en vez del valor comprobado. Esto conduce a una escritura fuera de límites. Esta vulnerabilidad afecta a las versiones anteriores a la 60.4 de Thunderbird, las versiones anteriores a la 60.4 de Firefox ESR y las versiones anteriores a la 64 de Firefox.

*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
  • 2018-10-19 CVE Reserved
  • 2018-12-12 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-09-23 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-190: Integer Overflow or Wraparound
  • CWE-787: Out-of-bounds Write
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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< 64.0
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-
Affected
Mozilla
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Firefox Esr
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< 60.4
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-
Affected
Mozilla
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Thunderbird
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< 60.4
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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
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-
Affected
Canonical
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Ubuntu Linux
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14.04
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lts
Affected
Canonical
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Ubuntu Linux
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16.04
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lts
Affected
Canonical
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Ubuntu Linux
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18.04
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lts
Affected
Canonical
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Ubuntu Linux
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18.10
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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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7.6
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Affected
Redhat
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Enterprise Linux Server Eus
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7.6
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Affected
Redhat
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Enterprise Linux Server Tus
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7.6
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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