#VU81132 Out-of-bounds write in Mozilla Firefox and Firefox for Android - CVE-2023-5173
Published: September 26, 2023
Vulnerability identifier: #VU81132
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-5173
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Firefox for Android
Mozilla Firefox
Firefox for Android
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker can trick the victim to open a specially crafted HTML file to trigger an out-of-bounds write and execute arbitrary code on the target system.
The vulnerability affects Firefox if a non-standard preference allowing non-HTTPS Alternate Services (network.http.altsvc.oe) is enabled.
Remediation
Install updates from vendor's website.