CVE-2021-36357

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

An issue was discovered in OpenPOWER 2.6 firmware. unpack_timestamp() calls le32_to_cpu() for endian conversion of a uint16_t "year" value, resulting in a type mismatch that can truncate a higher integer value to a smaller one, and bypass a timestamp check. The fix is to use the right endian conversion function.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-681

Affected software

No affected versions have been published.

Timeline

Published: Oct 22, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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