Home/CVE/An exploitable integer truncation vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on A
CVE

CVE-2021-21859

An exploitable integer truncation vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on A

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.

HIGH · CVSS 8.8 EPSS 0.00609
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  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
CWE-680Integer Overflow to Buffer Overflow
▤

Affected Products & Versions

2
gpacall versions
debian linuxall versions
⚠

Public Exploits & PoCs

1
poctalosintelligence.com · TALOS-2021-1298talosintelligence.com
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · talos-cna@cisco.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Aug 2021 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.debian.org/security/2021/dsa-4966Third Party Advisory
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