Because of an implementation bug the PA-RISC CRYPTO_memcmp function is effectively reduced to only comparing the least significant bit of each byte. This allows an attacker to forge messages that would be considered as authenticated in an amount of tries lower than that guaranteed by the security claims of the scheme. The module can only be compiled by the HP-UX assembler, so that only HP-UX PA-RISC targets are affected. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g).
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: openssl
Published: 2018-03-27T21:00:00Z
Updated: 2024-09-16T20:46:46.842Z
Reserved: 2017-11-30T00:00:00
Link: CVE-2018-0733
Vulnrichment
No data.
NVD
Status : Modified
Published: 2018-03-27T21:29:00.610
Modified: 2024-11-21T03:38:49.937
Link: CVE-2018-0733
Redhat