It was found that a mock CMC authentication plugin with a hardcoded secret was accidentally enabled by default in the pki-core package before 10.6.4. An attacker could potentially use this flaw to bypass the regular authentication process and trick the CA server into issuing certificates.
{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "dogtag-pki",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "dogtag-pki-console-theme",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "dogtag-pki-server-theme",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsymkey-java",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsymkey-jni",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pki-base",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pki-ca",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pki-console",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pki-javadoc",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pki-kra",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pki-ocsp",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pki-server",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pki-tks",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pki-tools",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pki-tps",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pki-tps-client",
            "binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
        }
    ]
}