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CVE ID: CVE-2021-3321

Last updated: Oct. 18, 2021, 5:52 p.m.

Severity: MEDIUM

Description

Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal. Zephyr versions >= >=2.4.0 contain Integer Overflow to Buffer Overflow (CWE-680). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99

Severity score: 6.4 Base score: 5.8 Exploitability score: 6.5 Confidentiality impact: PARTIAL Integrity impact: PARTIAL User interaction required: False Published: Oct. 12, 2021, 10:15 p.m. Data type: CVE Data format: MITRE Assigner: vulnerabilities@zephyrproject.org Problem type: CWE-191 Reference url: http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99 Reference name: http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99 Reference source: MISC CVE version: 2.0 Vector string: AV:A/AC:L/Au:N/C:P/I:P/A:P Access vector: ADJACENT_NETWORK Access complexity: LOW Authentication: NONE Base severity: AcInsf info: False Obtain all priviledges: False User privilege: False Other privilege: False

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