Heap-based buffer overflow in vlc (Alpine package)

1) Heap-based buffer overflow

EUVDB-ID: #VU29119

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-2020-13428

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 the hxxx_AnnexB_to_xVC() function in modules/packetizer/hxxx_nal.c in VideoLAN VLC media player when processing H.264 Annex-B video files. A remote attacker can create a specially crafted .avi file, trick the victim into opening it, trigger 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 - 3.0.10-r4

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=3b2303e96e8e746fbce238f58cb8267fd29d2e82
https://git.alpinelinux.org/aports/commit/?id=e186c138b6fda5ee16e09008c8479d44426f84e4

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.