Vulnerability identifier: #VU34930

Vulnerability risk: Medium

CVSSv3.1: 5.1 [AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-20091

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Bento4
Universal components / Libraries / Libraries used by multiple products

Vendor: axiomatic-systems

Description

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

The vulnerability exists due to a NULL pointer dereference error in Bento4 1.5.1.0. There is a NULL pointer dereference in AP4_Descriptor::GetTag in mp42ts when called from AP4_DecoderConfigDescriptor::GetDecoderSpecificInfoDescriptor in Ap4DecoderConfigDescriptor.cpp. A remote attacker can perform a denial of service (DoS) attack.

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

Vulnerable software versions

Bento4: 1.5.1.0

---

External links
http://github.com/axiomatic-systems/Bento4/issues/462

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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