CVE-2018-5156: Input Validation

Published Jun 26, 2018
·
Updated

A vulnerability can occur when capturing a media stream when the media source type is changed as the capture is occuring. This can result in stream data being cast to the wrong type causing a potentially exploitable crash.

Other sources

A vulnerability can occur when capturing a media stream when the media source type is changed as the capture is occurring. This can result in stream data being cast to the wrong type causing a potentially exploitable crash.

— Mozilla

An vulnerability can occur when capturing a media stream when the media source type is changed as the capture is occuring. This can result in stream data being cast to the wrong type causing a potentially exploitable crash.

External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-16/#CVE-2018-5156

— Red Hat

Affected Software

29 affected componentsFixes available
Mozilla Thunderbird<60
60
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=7.6
redhat Enterprise Linux Server Eus=7.5
redhat Enterprise Linux Server Eus=7.6
redhat Enterprise Linux Server Tus=7.6
redhat Enterprise Linux Workstation=6.0
redhat Enterprise Linux Workstation=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
Canonical Ubuntu Linux=18.04
Mozilla Firefox<61.0
Mozilla Firefox ESR<52.9.0
Mozilla Firefox ESR>=52.9.1<60.1.0
Mozilla Thunderbird<60.0
Mozilla Firefox<52.9.0
Mozilla Firefox>=52.9.1<60.1.0
Mozilla Firefox<61
61
Mozilla Firefox ESR<52.9
52.9
Mozilla Firefox ESR<60.1
60.1
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

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 debian/firefox to a version that resolves this vulnerability.

    Fixed in 147.0.4-1
  3. Upgrade

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

    Fixed in 115.14.0esr-1~deb11u1Fixed in 140.7.0esr-1~deb11u1Fixed in 128.14.0esr-1~deb12u1Fixed in 140.7.0esr-1~deb12u1Fixed in 140.4.0esr-1~deb13u1Fixed in 140.7.0esr-1~deb13u1Fixed in 140.7.0esr-1
  4. 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
  5. Upgrade

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

    Fixed in 61
  6. Upgrade

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

    Fixed in 52.9
  7. Upgrade

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

    Fixed in 60.1
  8. 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
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Updated
via Mozilla·12:00 AM
Affected Software
Data Sourced
via Red Hat·01:53 AM
DescriptionSeverityAffected Software
Aug 23, 2018
Updated
via Mozilla·12:00 AM
Affected Software
Oct 18, 2018
CVE Published
via MITRE·01:00 PM
Data Sourced
via MITRE·01:00 PM
DescriptionWeakness
Data Sourced
via NVD·01:29 PM
DescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·11:06 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-2018-5156?

CVE-2018-5156 has been classified as a high severity vulnerability as it can lead to potentially exploitable crashes.

2

How do I fix CVE-2018-5156?

To fix CVE-2018-5156, update affected software to the latest versions as recommended by Mozilla.

3

Which software is affected by CVE-2018-5156?

CVE-2018-5156 affects specific versions of Mozilla Firefox, Firefox ESR, and Thunderbird.

4

What type of vulnerability is CVE-2018-5156?

CVE-2018-5156 is a type of vulnerability that occurs during the media stream capturing process.

5

Can CVE-2018-5156 be exploited remotely?

While CVE-2018-5156 can lead to crashes, it is not explicitly defined as a vulnerability that allows for remote code execution.

Company

Resources

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