CVE-2014-5045
A flaw was found in the way the Linux kernel's VFS subsystem handled reference counting when performing unmount operations on symbolic links. A local, unprivileged user could use this flaw to exhaust all available memory on the system or, potentially, trigger a use-after-free error, resulting in a system crash or privilege escalation.
Find out more about CVE-2014-5045 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
This issue does not affect Linux kernel packages as shipped with Red Hat
Enterprise Linux 5 and Red Hat Enterprise MRG 2.
Future Linux kernel updates for Red Hat Enterprise Linux 6 and 7 may address
this issue.
CVSS v2 metrics
| Base Score | 6.2 |
|---|---|
| Base Metrics | AV:L/AC:H/Au:N/C:C/I:C/A:C |
| Access Vector | Local |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | Complete |
| Integrity Impact | Complete |
| Availability Impact | Complete |
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 6 (kernel) | RHSA-2014:1392 | 2014-10-13 |
| Red Hat Enterprise Linux Extended Update Support 6.5 (kernel) | RHSA-2015:0062 | 2015-01-20 |
| Red Hat Enterprise Linux 7 (kernel) | RHSA-2014:1971 | 2014-12-09 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected |
| Red Hat Enterprise Linux 5 | kernel | Not affected |