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CVE-2021-21847

Published: 18 August 2021

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.

Priority

Medium

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package Release Status
gpac
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

hirsute Ignored
(end of life)
impish Ignored
(end of life)
trusty Needs triage

upstream Needs triage

xenial Needs triage

kinetic Ignored
(end of life, was needs-triage)
jammy Needs triage

mantic Does not exist

lunar Ignored
(end of life, was needs-triage)
Patches:
upstream: https://github.com/gpac/gpac/commit/b515fd04f5f00f4a99df741042f1efb31ad56351

Severity score breakdown

Parameter Value
Base score 8.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H