vulnerability
OpenSSL OpenSSL: CVE-2018-0733: Vulnerability in OpenSSL OpenSSL
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Mar 27, 2018 | Mar 28, 2018 | Apr 22, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Mar 27, 2018
Added
Mar 28, 2018
Modified
Apr 22, 2026
Description
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).
Solution
openssl-upgrade-latest
References
Rapid7 Labs
2026 Global Threat Landscape Report
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