CVE-2021-21847: Buffer Overflow

Published Aug 18, 2021
·
Updated

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 “stts” 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

4 affected componentsFixes available
debian/gpac
0.5.2-426-gc5ad4e4+dfsg5-51.0.1+dfsg1-4+deb11u32.2.1+dfsg1-3
Gpac GPAC=1.0.1
Debian Debian Linux=10.0
Debian Debian Linux=11.0

Event History

Aug 18, 2021
CVE Published
via MITRE·12:25 PM
Data Sourced
via MITRE·12:25 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

What is the severity of CVE-2021-21847?

CVE-2021-21847 is considered a high severity vulnerability due to the potential for remote code execution from an integer overflow.

2

How do I fix CVE-2021-21847?

To fix CVE-2021-21847, upgrade GPAC to a version greater than 1.0.1 or apply available security patches.

3

What vulnerabilities are associated with CVE-2021-21847?

CVE-2021-21847 is associated with multiple exploitable integer overflow vulnerabilities within the MPEG-4 decoding functionality.

4

Which software is affected by CVE-2021-21847?

The software affected by CVE-2021-21847 includes GPAC versions up to 1.0.1 and Debian Linux versions 10.0 and 11.0.

5

Can CVE-2021-21847 be exploited remotely?

Yes, CVE-2021-21847 can be exploited remotely by crafting a malicious MPEG-4 input.

Contact

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