CVE-2021-21842 — Integer Overflow to Buffer Overflow in Gpac

CWE-680 — Integer Overflow to Buffer OverflowCWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-190 — Integer Overflow or Wraparound4 documents4 sources
Severity
8.8HIGHNVD
EPSS
0.4%
top 38.09%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
GpacDebian GpacDebian Linux
Timeline
PublishedAug 25
Latest updateMay 24

Description

An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input can cause an integer overflow when processing an atom using the 'ssix' FOURCC code, 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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages3 packages

▶debiandebian/gpac< gpac 1.0.1+dfsg1-4+deb11u1 (bullseye)
▶Debiangpac/gpac< 1.0.1+dfsg1-4+deb11u1
▶NVDgpac/gpac1.0.1

Also affects: Debian Linux 10.0, 11.0

🔴Vulnerability Details

2
GHSA
GHSA-w47j-5q3w-vfp6: An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1↗2022-05-24
▶
OSV
CVE-2021-21842: An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1↗2021-08-25
▶

📋Vendor Advisories

1
Debian
CVE-2021-21842: gpac - An exploitable integer overflow vulnerability exists within the MPEG-4 decoding ...↗2021
▶
CVE-2021-21842 — Integer Overflow to Buffer Overflow | cvebase