#VU17702 Out-of-bounds write in GPAC - CVE-2018-20763
Published: February 14, 2019
Vulnerability identifier: #VU17702
Vulnerability risk: High
CVSSv4.0: 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:P/U:Amber
CVE-ID: CVE-2018-20763
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
GPAC
GPAC
Software vendor:
GPAC
GPAC
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to due to improper bounds checks on the szLineConv parameter in the gf_text_get_utf8_lin function. A remote attacker can trick the victim into executing the MP4Box command that submits malicious input, trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install updates from vendor's website.