CVE-2023-5731: Critical severity Mozilla Firefox vulnerability

Published Oct 24, 2023
·
Updated

Last updated 24 July 2024

Other sources

Memory safety bugs present in Firefox 118. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.

— Mozilla

Affected Software

12 affected componentsFixes available
debian/firefox
130.0-2
Mozilla Firefox<119
119
Mozilla Firefox<119.0
alpine/firefox<119.0-r0
119.0-r0
alpine/firefox<119.0-r0
119.0-r0
alpine/firefox<119.0-r0
119.0-r0
alpine/firefox<119.0-r0
119.0-r0
alpine/firefox<119.0-r0
119.0-r0
alpine/firefox<119.0-r0
119.0-r0
alpine/librewolf<119.0-r0
119.0-r0
alpine/librewolf<119.0-r0
119.0-r0
alpine/librewolf<119.0-r0
119.0-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 130.0-2
  2. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 119

Event History

Oct 24, 2023
CVE Published
via Mozilla·12:00 AM
CVE Published
via MITRE·12:47 PM
Data Sourced
via MITRE·12:47 PM
DescriptionWeakness
Oct 25, 2023
Data Sourced
via NVD·06:17 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·06:17 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the vulnerability ID for this Firefox vulnerability?

The vulnerability ID for this Firefox vulnerability is CVE-2023-5731.

2

What is the severity level of CVE-2023-5731?

The severity of CVE-2023-5731 is high (7 out of 10).

3

What software is affected by CVE-2023-5731?

The Firefox version 118 is affected by CVE-2023-5731.

4

Is there a fix available for CVE-2023-5731?

Yes, the fix is available in Firefox version 119.

5

Where can I find more information about CVE-2023-5731?

You can find more information about CVE-2023-5731 in the Mozilla Security Advisory (MFSA2023-45) and Bugzilla.

Contact

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