Integer overflow in GPAC - CVE-2021-21838
Published: August 17, 2021 / Updated: December 22, 2022
Vulnerability identifier: #VU55890
CSH Severity: High
CVSS v4: 8.4 [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]
CVE-ID: CVE-2021-21838
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in the MPEG-4 decoding functionality within the "fpar" decoder. A remote attacker can trick a victim to open a video, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
GPAC
gpac (Debian package)
gpac (Debian package)
How to mitigate CVE-2021-21838
Install updates from vendor's website.
- update to
gpac (Debian package) - update to 1.0.1+dfsg1-4+deb11u1
gpac (Debian package) - update to 1.0.1+dfsg1-4+deb11u1