CVE-2021-21852: Buffer Overflow
First published: Wed 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 at “stss” 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.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/ccextractor | <=0.87+ds1-1<=0.88+ds1-1 | 0.94+ds1-2 |
| debian/gpac | 0.5.2-426-gc5ad4e4+dfsg5-5 1.0.1+dfsg1-4+deb11u3 2.2.1+dfsg1-3 | |
| GPAC MP4Box | =1.0.1 |
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Reference Links
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1297
- https://github.com/gpac/gpac/commit/b515fd04f5f00f4a99df741042f1efb31ad56351
- https://github.com/gpac/gpac/commit/592ba2689a3f2fc787371eda490fde4f84e60315
- https://github.com/gpac/gpac/issues/1814
- https://security-tracker.debian.org/tracker/CVE-2021-21852
- https://www.debian.org/security/2023/dsa-5411
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1297
Frequently Asked Questions
What is the severity of CVE-2021-21852?
CVE-2021-21852 has been classified as a high severity vulnerability due to its potential for exploitation through crafted MPEG-4 files.
How do I fix CVE-2021-21852?
To remediate CVE-2021-21852, users should upgrade the GPAC Project on Advanced Content library to versions 0.94+ds1-2 or higher.
What types of vulnerabilities are present in CVE-2021-21852?
CVE-2021-21852 includes multiple exploitable integer overflow vulnerabilities within the MPEG-4 decoding functionality.
Which software is affected by CVE-2021-21852?
CVE-2021-21852 affects versions of the GPAC library and certain packages like ccextractor up to version 0.88+ds1-1.
Can CVE-2021-21852 be exploited remotely?
Yes, CVE-2021-21852 can potentially be exploited remotely if a user processes a specially crafted MPEG-4 file.
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- canonical/gpac mp4box
- version/gpac mp4box/1.0.1