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CVE ID: CVE-2021-21834

Last updated: Oct. 18, 2021, 12:30 p.m.

Severity: MEDIUM

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 when decoding the atom for the “co64” FOURCC 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.

Severity score: 6.4 Base score: 6.8 Exploitability score: 8.6 Confidentiality impact: PARTIAL Integrity impact: PARTIAL User interaction required: True Published: Aug. 25, 2021, 7:15 p.m. Data type: CVE Data format: MITRE Assigner: talos-cna@cisco.com Problem type: CWE-190 Reference url: https://talosintelligence.com/vulnerability_reports/TALOS-2021-1297 Reference name: https://talosintelligence.com/vulnerability_reports/TALOS-2021-1297 Reference source: MISC CVE version: 2.0 Vector string: AV:N/AC:M/Au:N/C:P/I:P/A:P Access vector: NETWORK Access complexity: MEDIUM Authentication: NONE Base severity: AcInsf info: False Obtain all priviledges: False User privilege: False Other privilege: False

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