PT-2023-4748 · Mozilla+10 · Firefox Esr+12
Thejaka Maldeniya
·
Published
2023-08-29
·
Updated
2025-03-14
·
CVE-2023-4583
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 117
Firefox ESR versions prior to 115.2
Thunderbird versions prior to 115.2
Description
The issue is related to the handling of private browsing sessions in Mozilla Firefox, Firefox ESR, and Thunderbird. When checking if the Browsing Context had been discarded in
HttpBaseChannel, if the load group was not available, it was assumed to have already been discarded, which was not always the case for private channels after the private session had ended. This could allow a remote attacker to access confidential information.Recommendations
For Firefox versions prior to 117, update to version 117 or later.
For Firefox ESR versions prior to 115.2, update to version 115.2 or later.
For Thunderbird versions prior to 115.2, update to version 115.2 or later.
Exploit
Fix
Improper Check for Exceptional Conditions
Information Disclosure
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Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Firefox
Firefox Esr
Linuxmint
Red Hat
Red Os
Rocky Linux
Suse
Thunderbird
Ubuntu