CVE-2023-4583 Information

Description

When checking if the Browsing Context had been discarded in HttpBaseChannel if the load group was not available then it was assumed to have already been discarded which was not always the case for private channels after the private session had ended. This vulnerability affects Firefox < 117 Firefox ESR < 115.2 and Thunderbird < 115.2.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://www.mozilla.org/security/advisories/mfsa2023-34/ https://www.mozilla.org/security/advisories/mfsa2023-36/ https://bugzilla.mozilla.org/show_bug.cgi?id=1842030 https://www.mozilla.org/security/advisories/mfsa2023-38/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5