Denial of service in GStreamer gst-rtsp-server

Published: 2020-03-24 | Updated: 2020-06-19

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2020-6095
CWE-ID	CWE-476
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	gst-rtsp-server Server applications / Other server solutions
Vendor	GStreamer

Security Bulletin

This security bulletin contains information about 1 vulnerabilities.

Updated: 19.06.2020

Updated vulnerability description and list of affected software, changed bulletin status to patched.

1) NULL pointer dereference

EUVDB-ID: #VU26335

Risk: Medium

CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-6095

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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 the GstRTSPAuth functionality in gst/rtsp-server/rtsp-auth.c. A remote attacker can send a specially crafted RTSP setup request and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

gst-rtsp-server: 1.14.2 - 1.16.2

CPE2.3

External links

http://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1018
http://github.com/GStreamer/gst-rtsp-server/blob/master/ChangeLog

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.