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VULNERABILITIES

CVE-2018-0733 Details

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).

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f CVE
https://security.gentoo.org/glsa/201811-21 CVE
https://security.netapp.com/advisory/ntap-20180330-0002/ CVEThird Party Advisory
https://www.openssl.org/news/secadv/20180327.txt CVEVendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html CVE

see all 28 references

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]

Affected Products

ProductVersions
openssl openssl
>= 1.1.0, <= 1.1.0g

CPE

  • cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

16 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2018-0733
NVD Published Date:
Mar 27, 2018
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]