Vulnerability identifier: #VU15676

Vulnerability risk: Low

CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:U/RC:C]

CVE-ID: CVE-2018-18827

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Libav
Client/Desktop applications / Multimedia software

Vendor: Libav

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to heap-based buffer overflow in the ff_vc1_pred_dc function in vc1_block.c. A remote attacker can trick the victim into opening a specially crafted aac file, trigger memory corruption and cause the service to crash.

Mitigation
Cybersecurity Help is currently unaware of any solutions addressing the vulnerability.

Vulnerable software versions

Libav: 12.3

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External links
http://bugzilla.libav.org/show_bug.cgi?id=1135

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