Out-of-bounds read in vlc (Alpine package)

1) Out-of-bounds read

EUVDB-ID: #VU33168

Risk: Medium

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:Green]

CVE-ID: CVE-2019-14776

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in DemuxInit() in demux/asf/asf.c in VideoLAN VLC media player 3.0.7.1 via a crafted .mkv file. A remote attacker can pass specially crafted data to the application, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

vlc (Alpine package): 3.0.7.1-r0 - 3.0.7.1-r2

CPE2.3

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

External links

https://git.alpinelinux.org/aports/commit/?id=312cad7bde45dd571a1b025941f2ad2f117bb22c

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.