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
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
OpenSSL OpenSSL
Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g)affected
References
- https://www.tenable.com/security/tns-2018-07 ↗
- https://www.tenable.com/security/tns-2018-04 ↗
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html ↗
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html ↗
- https://security.gentoo.org/glsa/201811-21 ↗
- http://www.securityfocus.com/bid/103517 ↗
- https://www.tenable.com/security/tns-2018-06 ↗
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html ↗
- https://security.netapp.com/advisory/ntap-20180330-0002/ ↗
- http://www.securitytracker.com/id/1040576 ↗
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f ↗
- https://www.openssl.org/news/secadv/20180327.txt ↗
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html ↗
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html ↗