The iakerb_gss_export_sec_context function in lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) 1.14 pre-release 2015-09-14 improperly accesses a certain pointer, which allows remote authenticated users to cause a denial of service (memory corruption) or possibly have unspecified other impact by interacting with an application that calls the gss_export_sec_context function. NOTE: this vulnerability exists because of an incorrect fix for CVE-2015-2696.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-2698 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue did not affect the versions of krb5 as shipped with Red Hat Enterprise Linux 4, 5, 6, and 7.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 4 |
|---|---|
| Base Metrics | AV:N/AC:L/Au:S/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | Single |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | krb5 | Not affected |
| Red Hat Enterprise Linux 6 | krb5 | Not affected |
| Red Hat Enterprise Linux 5 | krb5 | Not affected |
| Red Hat Enterprise Linux 4 | krb5 | Not affected |
Vulmon