CVE-2018-5709

An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->nkeydata" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.

References

Affected packages

Git / github.com/krb5/krb5

Affected ranges

Type

GIT

Repo

https://github.com/krb5/krb5

Events

Introduced

Last affected

ae432f4b3b58c29bd6799e158c83ff4ee1d3ddb0

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.16."
        }
    ]
}

Affected versions

krb5-1.*

krb5-1.16-beta1

krb5-1.16-beta2

krb5-1.16-final

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-5709.json"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5-1.16"
            }
        ]
    }
]