#VU72050 Input validation error in HarfBuzz - CVE-2023-25193
Published: February 8, 2023 / Updated: February 12, 2023
Vulnerability identifier: #VU72050
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-25193
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
HarfBuzz
HarfBuzz
Software vendor:
Freedesktop.org
Freedesktop.org
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in hb-ot-layout-gsubgpos.hh. A remote attacker can use consecutive marks during the process of looking back for base glyphs when attaching marks and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.