CVE-2018-5127: Buffer Overflow

Published Mar 13, 2018
·
Updated

A buffer overflow can occur when manipulating the SVG "animatedPathSegList" through script. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.7, Firefox ESR < 52.7, and Firefox < 59.

Other sources

A buffer overflow can occur when manipulating the SVG animatedPathSegList through script. This results in a potentially exploitable crash.

External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-07/#CVE-2018-5127

Red Hat

A buffer overflow can occur when manipulating the SVG animatedPathSegList through script. This results in a potentially exploitable crash.

Affected Software

25 affected componentsFixes available
Mozilla Thunderbird<52.7
52.7
Mozilla Firefox<59
59
Mozilla Firefox ESR<52.7
52.7
redhat Enterprise Linux Desktop=6.0
redhat Enterprise Linux Desktop=7.0
redhat Enterprise Linux Server=6.0
redhat Enterprise Linux Server=7.0
redhat Enterprise Linux Server Aus=7.4
redhat Enterprise Linux Server Eus=7.4
redhat Enterprise Linux Server Eus=7.5
redhat Enterprise Linux Workstation=6.0
redhat Enterprise Linux Workstation=7.0
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=17.10
Mozilla Firefox<59.0
Mozilla Firefox ESR<52.7.0
Mozilla Thunderbird<52.7.0
Mozilla Firefox<52.7.0
debian/firefox
147.0.4-1
debian/firefox-esr
115.14.0esr-1~deb11u1140.7.0esr-1~deb11u1128.14.0esr-1~deb12u1140.7.0esr-1~deb12u1140.4.0esr-1~deb13u1140.7.0esr-1~deb13u1140.7.0esr-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

Event History

Mar 13, 2018
CVE Published
via Mozilla·12:00 AM
Mar 14, 2018
Data Sourced
via Red Hat·02:03 AM
DescriptionSeverityAffected Software
Jun 11, 2018
CVE Published
via MITRE·09:00 PM
Data Sourced
via MITRE·09:00 PM
DescriptionWeakness
Data Sourced
via NVD·09:29 PM
DescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·11:05 PM
Description
Nov 26, 2025
Data Sourced
via Ubuntu·06:15 PM
RemedyDescriptionSeverityAffected Software
Feb 20, 2026
Data Sourced
via Debian·12:49 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is CVE-2018-5127?

CVE-2018-5127 is a vulnerability that allows a buffer overflow when manipulating the SVG animatedPathSegList through script, potentially leading to a crash that can be exploited.

2

Which software is affected by CVE-2018-5127?

CVE-2018-5127 affects Thunderbird versions earlier than 52.7, Firefox ESR versions earlier than 52.7, and Firefox versions earlier than 59.

3

What is the severity level of CVE-2018-5127?

CVE-2018-5127 has a severity level of 8.8 (High).

4

How can I fix CVE-2018-5127?

To fix CVE-2018-5127, you should update your software to Thunderbird 52.7+, Firefox ESR 52.7+, or Firefox 59+.

5

Where can I find more information about CVE-2018-5127?

You can find more information about CVE-2018-5127 at the following references: Mozilla Security Advisory, Red Hat Security Advisory.

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