Critical severity9.8NVD Advisory· Published Oct 22, 2021· Updated Jun 17, 2026
CVE-2021-36357
CVE-2021-36357
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.
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Affected products
2- OpenPOWER/OpenPOWER firmwaredescription
Patches
Vulnerability mechanics
References
1- github.com/open-power/skiboot/commit/5be38b672c1410e2f10acd3ad2eecfdc81d5daf7nvdPatchThird Party Advisory
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