CVE-2021-21845: Buffer Overflow
Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input in “stsc” decoder can cause an integer overflow due to unchecked arithmetic resulting in a heap-based buffer overflow that causes memory corruption. An attacker can convince a user to open a video to trigger this vulnerability.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-21845?
CVE-2021-21845 is classified as a high severity vulnerability due to the potential for remote code execution through integer overflow.
How do I fix CVE-2021-21845?
To fix CVE-2021-21845, update GPAC to version 0.5.2-426-gc5ad4e4+dfsg5-5 or one of the other patched versions listed in the vendor advisory.
What types of systems are affected by CVE-2021-21845?
CVE-2021-21845 affects systems running GPAC v1.0.1 and its earlier versions in Debian Linux distributions.
What exploitation conditions exist for CVE-2021-21845?
Exploitation of CVE-2021-21845 requires a specially crafted MPEG-4 file processed by the GPAC library.
What are the potential impacts of CVE-2021-21845?
The potential impacts of CVE-2021-21845 include remote code execution and denial of service due to heap-based buffer overflow.