Double Free in VLC Media Player - CVE-2019-12874
Published: August 8, 2019
Vulnerability identifier: #VU19985
CSH Severity: High
CVSS v4.0: 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-2019-12874
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: VideoLAN
Affected software:
VLC Media Player
VLC Media Player
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing MKV files in zlib_decompress_extra() function in modules/demux/mkv/util.cpp. A remote attacker can create a specially crafted MKV file, trick the victim into opening it, trigger double free error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2019-12874
Install updates from vendor's website.