ZNC before 1.7.1-rc1 does not properly validate untrusted lines coming from the network, allowing a non-admin user to escalate his privilege and inject rogue values into znc.conf.
{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "znc",
            "binary_version": "1.2-3ubuntu0.1"
        },
        {
            "binary_name": "znc-dev",
            "binary_version": "1.2-3ubuntu0.1"
        },
        {
            "binary_name": "znc-perl",
            "binary_version": "1.2-3ubuntu0.1"
        },
        {
            "binary_name": "znc-python",
            "binary_version": "1.2-3ubuntu0.1"
        },
        {
            "binary_name": "znc-tcl",
            "binary_version": "1.2-3ubuntu0.1"
        }
    ]
}
          {
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "znc",
            "binary_version": "1.6.3-1ubuntu0.1"
        },
        {
            "binary_name": "znc-dev",
            "binary_version": "1.6.3-1ubuntu0.1"
        },
        {
            "binary_name": "znc-perl",
            "binary_version": "1.6.3-1ubuntu0.1"
        },
        {
            "binary_name": "znc-python",
            "binary_version": "1.6.3-1ubuntu0.1"
        },
        {
            "binary_name": "znc-tcl",
            "binary_version": "1.6.3-1ubuntu0.1"
        }
    ]
}
          {
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "znc",
            "binary_version": "1.6.6-1ubuntu0.1"
        },
        {
            "binary_name": "znc-dev",
            "binary_version": "1.6.6-1ubuntu0.1"
        },
        {
            "binary_name": "znc-perl",
            "binary_version": "1.6.6-1ubuntu0.1"
        },
        {
            "binary_name": "znc-python",
            "binary_version": "1.6.6-1ubuntu0.1"
        },
        {
            "binary_name": "znc-tcl",
            "binary_version": "1.6.6-1ubuntu0.1"
        }
    ]
}