#VU33170 Use-after-free in VLC Media Player - CVE-2019-14778

Vulnerability identifier: #VU33170

Vulnerability risk: Low

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:Clear]

CVE-ID: CVE-2019-14778

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

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

Vendor: VideoLAN

Description

The vulnerability allows a local non-authenticated attacker to execute arbitrary code.

The mkv::virtual_segment_c::seek method of demux/mkv/virtual_segment.cpp in VideoLAN VLC media player 3.0.7.1 has a use-after-free.

Mitigation
Install update from vendor's website.

Vulnerable software versions

VLC Media Player: 3.0.7.1

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External links
https://git.videolan.org/?p=vlc.git&a=search&h=refs/heads/master&st=commit&s=cve-2019
https://lists.opensuse.org/opensuse-security-announce/2020-04/msg00036.html
https://lists.opensuse.org/opensuse-security-announce/2020-04/msg00046.html
https://seclists.org/bugtraq/2019/Aug/36
https://security.gentoo.org/glsa/201909-02
https://usn.ubuntu.com/4131-1/
https://www.debian.org/security/2019/dsa-4504
https://www.videolan.org/security/sb-vlc308.html

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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.