CVE-2018-12371: Integer Overflow

Published Jun 26, 2018
·
Updated

An integer overflow vulnerability in the Skia library when allocating memory for edge builders on some systems with at least 16 GB of RAM. This results in the use of uninitialized memory, resulting in a potentially exploitable crash.

Affected Software

9 affected componentsFixes available
Mozilla Thunderbird<60
60
Mozilla Firefox<61.0
Mozilla Firefox ESR<60.1.0
Mozilla Thunderbird<60.0
Mozilla Firefox<61
61
Mozilla Firefox ESR<60.1
60.1
Mozilla Firefox<60.1.0
debian/firefox
147.0.4-1
debian/thunderbird
1:115.12.0-1~deb11u11:140.7.1esr-1~deb11u11:140.6.0esr-1~deb12u11:140.7.1esr-1~deb12u11:140.6.0esr-1~deb13u11:140.7.1esr-1~deb13u11:140.7.1esr-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 60
  2. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 61
  3. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 60.1
  4. Upgrade

    Upgrade debian/firefox to a version that resolves this vulnerability.

    Fixed in 147.0.4-1
  5. Upgrade

    Upgrade debian/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:115.12.0-1~deb11u1Fixed in 1:140.7.1esr-1~deb11u1Fixed in 1:140.6.0esr-1~deb12u1Fixed in 1:140.7.1esr-1~deb12u1Fixed in 1:140.6.0esr-1~deb13u1Fixed in 1:140.7.1esr-1~deb13u1Fixed in 1:140.7.1esr-1
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 60

Event History

Jun 26, 2018
CVE Published
via Mozilla·12:00 AM
Aug 23, 2018
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Jul 9, 2020
CVE Published
via MITRE·01:54 PM
Data Sourced
via MITRE·01:54 PM
DescriptionWeakness
Data Sourced
via NVD·02:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·10:49 PM
Description
Nov 25, 2025
Data Sourced
via Ubuntu·06:14 PM
RemedyDescriptionSeverityAffected Software
Feb 20, 2026
Data Sourced
via Debian·04:28 PM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2018-12371?

CVE-2018-12371 is classified as a potentially exploitable vulnerability that could lead to crashes due to integer overflow.

2

How do I fix CVE-2018-12371?

To fix CVE-2018-12371, update affected software to the latest versions: Thunderbird above 60, Firefox ESR above 60.1, or Firefox above 61.

3

Which applications are affected by CVE-2018-12371?

Applications affected by CVE-2018-12371 include Mozilla Thunderbird versions up to 60 and Mozilla Firefox versions up to 61.

4

What causes the vulnerability CVE-2018-12371?

CVE-2018-12371 is caused by an integer overflow during memory allocation in the Skia library specific to systems with at least 16 GB of RAM.

5

What are the potential impacts of CVE-2018-12371?

The potential impacts of CVE-2018-12371 include the use of uninitialized memory leading to application crashes.

Company

Resources

Contact

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