CVE-2011-5321
A NULL pointer dereference flaw was found in the way the Linux kernel's virtual console implementation handled reference counting when accessing pseudo-terminal device files (/dev/pts/*). A local, unprivileged attacker could use this flaw to crash the system.
Find out more about CVE-2011-5321 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
This issue does not affect the versions of the kernel package as shipped with
Red Hat Enterprise Linux 5, 7 and Red Hat Enterprise MRG 2.
This issue affects the version of Linux kernel as shipped with Red Hat
Enterprise Linux 6. Future kernel updates for Red Hat Enterprise Linux 6
may address this issue.
CVSS v2 metrics
| Base Score | 4.7 |
|---|---|
| Base Metrics | AV:L/AC:M/Au:N/C:N/I:N/A:C |
| Access Vector | Local |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| 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-2015:1221 | 2015-07-14 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected |
| Red Hat Enterprise Linux 7 | kernel | Not affected |
| Red Hat Enterprise Linux 5 | kernel | Not affected |