The MD5 Message-Digest Algorithm is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of MD5 in the signature algorithm of an X.509 certificate.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Md5 | Ietf | - (including) | - (including) |
| Firefox | Ubuntu | dapper | * |
| Nss | Ubuntu | gutsy | * |
| Nss | Ubuntu | hardy | * |
| Nss | Ubuntu | intrepid | * |
| Red Hat Certificate System 7.3 | RedHat | rhpki-ca-0:7.3.0-21.el4 | * |
| Red Hat Certificate System 7.3 | RedHat | rhpki-common-0:7.3.0-41.el4 | * |
| Red Hat Certificate System 7.3 | RedHat | rhpki-util-0:7.3.0-21.el4 | * |
| Red Hat Certificate System 8 | RedHat | pki-ca-0:8.0.7-1.el5pki | * |
| Red Hat Certificate System 8 | RedHat | pki-common-0:8.0.6-2.el5pki | * |
| Red Hat Certificate System 8 | RedHat | pki-util-0:8.0.5-1.el5pki | * |