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Vulnerability Details : CVE-2018-0733

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).
Publish Date : 2018-03-27 Last Update Date : 2019-04-23
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)

- Products Affected By CVE-2018-0733

# Product Type Vendor Product Version Update Edition Language
1 Application Openssl Openssl 1.1.0 Pre2 Version Details Vulnerabilities
2 Application Openssl Openssl 1.1.0g Version Details Vulnerabilities
3 Application Openssl Openssl 1.1.0b Version Details Vulnerabilities
4 Application Openssl Openssl 1.1.0 Pre3 Version Details Vulnerabilities
5 Application Openssl Openssl 1.1.0c Version Details Vulnerabilities
6 Application Openssl Openssl 1.1.0 Pre4 Version Details Vulnerabilities
7 Application Openssl Openssl 1.1.0 Version Details Vulnerabilities
8 Application Openssl Openssl 1.1.0d Version Details Vulnerabilities
9 Application Openssl Openssl 1.1.0 Pre5 Version Details Vulnerabilities
10 Application Openssl Openssl 1.1.0 - Version Details Vulnerabilities
11 Application Openssl Openssl 1.1.0e Version Details Vulnerabilities
12 Application Openssl Openssl 1.1.0 Pre6 Version Details Vulnerabilities
13 Application Openssl Openssl 1.1.0 Pre1 Version Details Vulnerabilities
14 Application Openssl Openssl 1.1.0f Version Details Vulnerabilities
15 Application Openssl Openssl 1.1.0a Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Openssl Openssl 15

- References For CVE-2018-0733 CONFIRM;a=commitdiff;h=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f CONFIRM CONFIRM CONFIRM CONFIRM CONFIRM
BID 103517 OpenSSL CVE-2018-0733 Security Bypass Vulnerability Release Date:2018-03-27 CONFIRM

- Metasploit Modules Related To CVE-2018-0733

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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