Denial of service in LIVE555 Media Server



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-6256
CWE-ID CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 LIVE555 Media Server
Universal components / Libraries / Libraries used by multiple products

Vendor Live Networks

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU17101

Risk: Low

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2019-6256

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to a call to an incorrect virtual function pointer in the readSocket function in GroupsockHelper.cpp. A remote attacker can cause an RTSPServer crash in handleHTTPCmd_TunnelingPOST, when RTSP-over-HTTP tunneling is supported, via x-sessioncookie HTTP headers in a GET request and a POST request within the same TCP session.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

LIVE555 Media Server: 0.93

CPE2.3 External links

https://github.com/rgaufman/live555/issues/19


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. However, proof of concept for this vulnerability is available.



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