#VU49913 Heap-based buffer overflow in VLC Media Player - CVE-2020-26664

Vulnerability identifier: #VU49913

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-26664

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
VLC Media Player
Client/Desktop applications / Multimedia software

Vendor: VideoLAN

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in EbmlTypeDispatcher::send() function in VideoLAN VLC media player. A remote attacker can create a specially crafted .mkv file, truck the victim to open it, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

VLC Media Player: 3.0.0 - 3.0.11.1

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External links
https://gist.githubusercontent.com/henices/db11664dd45b9f322f8514d182aef5ea/raw/d56940c8bf211992bf4f3309a85bb2b69383e511/CVE-2020-26664.txt

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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.