#VU35652 Division by zero in Libav - CVE-2019-14443

Vulnerability identifier: #VU35652

Vulnerability risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-14443

CWE-ID: CWE-369

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Libav
Client/Desktop applications / Multimedia software

Vendor: Libav

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a division by zero error within . A remote attacker can pass specially crafted data to the application and crash it.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Libav: 12.3

---

External links
https://bugzilla.libav.org/show_bug.cgi?id=1161#c1
https://lists.debian.org/debian-lts-announce/2019/12/msg00003.html

---

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.