CVE-2012-2133
The MITRE CVE dictionary describes this issue as:
Use-after-free vulnerability in the Linux kernel before 3.3.6, when huge pages are enabled, allows local users to cause a denial of service (system crash) or possibly gain privileges by interacting with a hugetlbfs filesystem, as demonstrated by a umount operation that triggers improper handling of quota data.
Find out more about CVE-2012-2133 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5. Future kernel updates for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux MRG 2 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-2012:1426 | 2012-11-06 |
| Red Hat Enterprise Linux Extended Update Support 6.2 (kernel) | RHSA-2013:0741 | 2013-04-16 |
| Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) | RHSA-2012:1491 | 2012-12-04 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise MRG 2 | realtime-kernel | Will not fix |
| Red Hat Enterprise MRG 1 | kernel | Not affected |
| Red Hat Enterprise Linux 5 | kernel | Not affected |
| Red Hat Enterprise Linux 4 | kernel | Not affected |
Acknowledgements
Red Hat would like to thank Shachar Raindel for reporting this issue.CVE description copyright © 2017, The MITRE Corporation