CVE-2023-5173 Information

Description

In a non-standard configuration of Firefox an integer overflow could have occurred based on network traffic (possibly under influence of a local unprivileged webpage) leading to an out-of-bounds write to privileged process memory. This bug only affects Firefox if a non-standard preference allowing non-HTTPS Alternate Services (network.http.altsvc.oe) is enabled. This vulnerability affects Firefox < 118.

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/mfsa2023-41/ https://bugzilla.mozilla.org/show_bug.cgi?id=1823172

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