CVE-2016-2120

An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.

References

Affected packages

Git / github.com/powerdns/pdns

Affected ranges

Type

GIT

Repo

https://github.com/powerdns/pdns

Events

Introduced

Last affected

225c3cfed68ac6f8bd3af413003ca0c46312ac5c

Introduced

ba64cecd417688dc39c75e92f1a23b91f7f46d64

Last affected

c3a33379007e61752ab977eae8075d8a98529011

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "3.4.10"
        },
        {
            "introduced": "4.0.0"
        },
        {
            "last_affected": "4.0.1"
        }
    ]
}

Affected versions

auth-4.*

auth-4.0.0

auth-4.0.1

rec-4.*

rec-4.0.0

rec-4.0.1

Database specific

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-2120.json"