CVE-2023-5722: Medium severity Mozilla Firefox vulnerability

Published Oct 24, 2023
·
Updated

Last updated 24 July 2024

Other sources

Using iterative requests an attacker was able to learn the size of an opaque response, as well as the contents of a server-supplied Vary header.

— 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 issue?

The vulnerability ID for this issue is CVE-2023-5722.

2

What is the severity of CVE-2023-5722?

The severity of CVE-2023-5722 is medium.

3

Which software is affected by CVE-2023-5722?

Mozilla Firefox versions up to exclusive 119 are affected by CVE-2023-5722.

4

How can an attacker exploit CVE-2023-5722?

An attacker can exploit CVE-2023-5722 by using iterative requests to learn the size of an opaque response and the contents of a server-supplied Vary header.

5

Is there any official reference for CVE-2023-5722?

Yes, you can find more information about CVE-2023-5722 in the following references: 1. [Mozilla Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1738426) 2. [Mozilla Security Advisories](https://www.mozilla.org/en-US/security/advisories/mfsa2023-45/)

Contact

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