CVE-2018-0733

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).

Risk Information

Base Score

5.9

MODERATE

Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Score

Exploitation Probability

1.955

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2018-0739,CVE-2018-0733,CVE-2017-3738 are fixed in OpenSSL (x64) 1.1.0h	Windows
Vulnerabilities CVE-2017-3738,CVE-2018-0733,CVE-2018-0739 are fixed in Nessus 5.5.0	Windows
Vulnerabilities CVE-2017-3738,CVE-2018-0733,CVE-2018-0739 are fixed in Tenable Nessus 5.5.0	Windows

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234