Ubuntu: (Multiple Advisories) (CVE-2023-23603): Firefox vulnerabilities

Ubuntu: (Multiple Advisories) (CVE-2023-23603): Firefox vulnerabilities

Severity

7

CVSS

(AV:N/AC:M/Au:N/C:C/I:N/A:N)

Published

01/20/2023

Created

01/25/2023

Added

01/23/2023

Modified

01/30/2025

Description

Regular expressions used to filter out forbidden properties and values from style directives in calls to <code>console.log</code> weren't accounting for external URLs. Data could then be potentially exfiltrated from the browser. This vulnerability affects Firefox < 109, Thunderbird < 102.7, and Firefox ESR < 102.7.

Solution(s)

• ubuntu-upgrade-firefox
• ubuntu-upgrade-thunderbird

References

• https://attackerkb.com/topics/cve-2023-23603
• CVE - 2023-23603
• CVE-2023-23603
• USN-5816-1
• USN-5816-2
• USN-5824-1