#VU12403 Improper input validation in libmad - CVE-2017-8372

Vulnerability identifier: #VU12403

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-8372

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

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

Vendor: Underbit Technologies

Description
The vulnerability allows a remote attackert o casue DoS condition on the target system.

The weakness exists in the mad_layer_III function in layer3.c due to assertion failure if NDEBUG is omitted. A remote attacker can submit a specially crafted audio file, trick the victim into opening it and cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libmad: 0.15.1b

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External links
https://blogs.gentoo.org/ago/2017/04/30/libmad-assertion-failure-in-layer3-c/

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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.