CVE-2023-5173

2023-09-2715:19:42

CWE-190

[email protected]

web.nvd.nist.gov

firefox

integer overflow

vulnerability

configuration

network traffic

out-of-bounds write

privileged process memory

preference

https

alternate services

cve-2023-5173

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

7.8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.3%

JSON

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.