Denial of service in LIVE555 Media Server

Published: 2019-02-14
Severity Medium
Patch available NO
Number of vulnerabilities 2
CVE ID CVE-2019-7732
CVE-2019-7733
CWE ID CWE-401
CWE-120
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Vulnerable software LIVE555 Media Server Subscribe
Vendor Live Networks

Security Advisory

1) Memory leak

Severity: Medium

CVSSv3: 8.1 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:P/RL:U/RC:C] [PCI]

CVE-ID: CVE-2019-7732

CWE-ID: CWE-401 - Improper Release of Memory Before Removing Last Reference ('Memory Leak')

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak when multiple instances of a single field exist within a setup packet. A remote attacker can send a malicious setup packet and perform denial of service attack.

Mitigation

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

Vulnerable software versions

LIVE555 Media Server: 0.95

CPE External links

https://github.com/rgaufman/live555/issues/20

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.

2) Buffer overflow

Severity: Medium

CVSSv3: 8.1 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:P/RL:U/RC:C] [PCI]

CVE-ID: CVE-2019-7733

CWE-ID: CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due a buffer overflow condition in the handleRequestBytes function. A remote attacker can send a malicious HTTP packet and perform denial of service attack.

Mitigation

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

Vulnerable software versions

LIVE555 Media Server: 0.95

CPE External links

https://github.com/rgaufman/live555/issues/21

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.