JavaScript Sandbox Vulnerability in Firefox and Focus by Mozilla
CVE-2023-29549

6.5MEDIUM

Key Information:

Vendor

Mozilla
Status
Firefox for Android
Firefox
Focus for Android
Vendor
CVE Published:
2 June 2023

What is CVE-2023-29549?

A vulnerability has been identified where an incorrect call to the 'bind' function could lead to an improper realm assignment. This flaw may compromise the integrity of JavaScript-implemented sandboxes, such as those using Secure ECMAScript (SES). Affected are multiple versions of Firefox on Android and desktop, as well as the Focus browser for Android, prior to version 112. Users of these products are advised to apply the latest security updates to mitigate potential risks.

Affected Version(s)

Firefox < 112

Firefox for Android < 112

Focus for Android < 112

References

https://www.mozilla.org/security/advisories/mfsa2023-13/
https://bugzilla.mozilla.org/show_bug.cgi?id=1823042

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2023-29549 : JavaScript Sandbox Vulnerability in Firefox and Focus by Mozilla