Denial of service in Nextcloud Video Converter app

1) Resource management error

EUVDB-ID: #VU21945

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-2019-18214

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to incorrect implementation of concurrency when performing conversion of multiple FFmpeg streams. A remote attacker can consume all available CPU and memory resources and perform a denial of service attack.

Mitigation

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

Vulnerable software versions

NextcloudVideo_Converter: 0.0.2 - 0.1.3

CPE2.3

• cpe:2.3:a:paullereverend:nextcloudvideo_converter:0.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:paullereverend:nextcloudvideo_converter:0.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:paullereverend:nextcloudvideo_converter:0.0.4:*:*:*:*:*:*:*

External links

https://github.com/PaulLereverend/NextcloudVideo_Converter/issues/22

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.