What is CVE-2021-21859?

CVE-2021-21859 is a high-severity vulnerability in Gpac, classified under Integer Overflow to Buffer Overflow. CVSS score: 8.8/10. Published 2021-08-16.

How severe is CVE-2021-21859?

High severity. CVSS v3 base score is 8.8 out of 10.

Integer overflow in Gpac

CVE-2021-21859

An exploitable integer truncation vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. The stri_box_read function is used when processing atoms using the 'stri' FOURCC code. An attacker can convince a user to open a video to trigger this vulnerability.

EPSS: 0.016 (73.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Gpac — versions 1.0.1
Debian Debian_linux — versions 11.0
N/a Gpac Project — versions GPAC Project Advanced Content commit a8a8d412dabcb129e695c3e7d861fcc81f608304, GPAC Project Advanced Content v1.0.1

Weakness classification (CWE)

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)
talos-cna@cisco.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)

Frequently asked questions

What is CVE-2021-21859?: CVE-2021-21859 is a high-severity vulnerability in Gpac, classified under Integer Overflow to Buffer Overflow. CVSS score: 8.8/10. Published 2021-08-16.
How severe is CVE-2021-21859?: High severity. CVSS v3 base score is 8.8 out of 10.