#VU62021 Input validation error in fribidi - CVE-2022-25310

Vulnerability identifier: #VU62021

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-25310

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
fribidi
Universal components / Libraries / Libraries used by multiple products

Vendor: GNU

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to improper handling of empty input when removing marks from unicode strings. A remote attacker can pass specially crafted input to the application and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

fribidi: 0.19.4 - 1.0.11

---

External links
https://github.com/fribidi/fribidi/commit/175850b03e1af251d705c1d04b2b9b3c1c06e48f

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.