Heap-based buffer overflow in vlc (Alpine package)

1) Heap-based buffer overflow

EUVDB-ID: #VU49913

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 - Heap-based Buffer Overflow

Exploit availability: No

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 (Alpine package): 3.0.7.1-r0 - 3.0.11.1-r1

CPE2.3

• cpe:2.3:a:alpine:vlc_alpine_package:3.0.7.1-r0:*:*:*:*:alpine_linux:*:3.9
• cpe:2.3:a:alpine:vlc_alpine_package:3.0.7.1-r1:*:*:*:*:alpine_linux:*:3.9
• cpe:2.3:a:alpine:vlc_alpine_package:3.0.7.1-r2:*:*:*:*:alpine_linux:*:3.10

External links

https://git.alpinelinux.org/aports/commit/?id=2005d64b3f3d068271cf44b11afb82d6ae2aae6b
https://git.alpinelinux.org/aports/commit/?id=89584230ef0e8fcdef27e2e4148b6994fdc833d3
https://git.alpinelinux.org/aports/commit/?id=f887b39e14388177cf0e8caa2c57cbd108ecad8d

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.