CVE-2016-3120
A NULL pointer dereference flaw was found in MIT Kerberos krb5kdc service. An authenticated attacker could use this flaw to cause krb5kdc to dereference a null pointer and crash by making an S4U2Self request, if the restrict_anonymous_to_tgt option was set to true.
Find out more about CVE-2016-3120 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS v2 metrics
| Base Score | 3.5 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:S/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | Single |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
CVSS v3 metrics
| CVSS3 Base Score | 5.3 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | High |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Red Hat Security Errata
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 7 (krb5) | RHSA-2016:2591 | 2016-11-03 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat JBoss Web Server 3.0 | krb5 | Not affected |
| Red Hat JBoss EWS 2 | krb5 | Not affected |
| Red Hat JBoss EAP 7 | krb5 | Not affected |
| Red Hat JBoss EAP 6 | krb5 | Not affected |
| Red Hat Enterprise Linux 6 | krb5 | Will not fix |
| Red Hat Enterprise Linux 5 | krb5 | Not affected |