CVE Database›Document archive›CVE-2013-1417

CVE-2013-1417

krb5: KDC null deref due to referrals

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Severity

Moderate

Red Hat Product Security

3.5

CVSS 2.0

Review impact separately from score.

Published · June 21, 2013

Updated · November 21, 2025

Description

do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.11 before 1.11.4, when a single-component realm name is used, allows remote authenticated users to cause a denial of service (daemon crash) via a TGS-REQ request that triggers an attempted cross-realm referral for a host-based service principal.

Statement

Not vulnerable. This issue did not affect the versions of krb5 as shipped with Red Hat Enterprise Linux 5 and 6.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 2.0 · 3.5
AV:N/AC:M/Au:S/C:N/I:N/A:P

CWE-476 · NULL Pointer Dereference