Vulnerability Details CVE-2021-36357
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 42.8%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
References
Products affected by CVE-2021-36357
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cpe:2.3:o:openpowerfoundation:skiboot:2.6