CVE-2018-0733 Incorrect CRYPTO_memcmp on HP-UX PA-RISC
MediumCVSS 5.9
EPSS 8.3%
- Published
- Updated
- Exploit status
- No public exploit known
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).
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/openssl(Debian:12) | < 1.1.0h-1 | 1.1.0h-1 |
| debian/openssl(Debian:13) | < 1.1.0h-1 | 1.1.0h-1 |
| debian/openssl(Debian:14) | < 1.1.0h-1 | 1.1.0h-1 |
| OpenSSL | >= 1.1.0, <= 1.1.0g | No fix listed |
| alpine/openssl(Alpine:v3.3) | >= 1.1.0, < 1.0.2o-r0 | 1.0.2o-r0 |
| alpine/openssl(Alpine:v3.4) | >= 1.1.0, < 1.0.2o-r0 | 1.0.2o-r0 |
| alpine/openssl(Alpine:v3.5) | >= 1.1.0, < 1.0.2o-r0 | 1.0.2o-r0 |
| alpine/openssl(Alpine:v3.6) | >= 1.1.0, < 1.0.2o-r0 | 1.0.2o-r0 |
| alpine/openssl(Alpine:v3.7) | >= 1.1.0, < 1.0.2o-r0 | 1.0.2o-r0 |
| alpine/openssl(Alpine:v3.8) | >= 1.1.0, < 1.0.2o-r0 | 1.0.2o-r0 |
| OpenSSL | = Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g) | No fix listed |
References
- Debian Security Tracker CVE-2018-0733 vendor-advisory
- www.oracle.com
- www.oracle.com
- 103517 third-party-advisory vdb-entry
- 1040576 third-party-advisory vdb-entry
- git.openssl.org
- GLSA-201811-21 vendor-advisory
- security.netapp.com third-party-advisory
- www.openssl.org vendor-advisory
- www.oracle.com
- www.oracle.com
- www.oracle.com
- www.tenable.com
- www.tenable.com
- www.tenable.com
- security.alpinelinux.org vendor-advisory