CVE-2011-1082
The MITRE CVE dictionary describes this issue as:
fs/eventpoll.c in the Linux kernel before 2.6.38 places epoll file descriptors within other epoll data structures without properly checking for (1) closed loops or (2) deep chains, which allows local users to cause a denial of service (deadlock or stack memory consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.
Find out more about CVE-2011-1082 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
This issue does not affect the Linux kernel as shipped with Red Hat Enterprise Linux 4 and 5. This was addressed in Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0542.html and https://rhn.redhat.com/errata/RHSA-2011-0500.html.
CVSS v2 metrics
| Base Score | 4.9 |
|---|---|
| Base Metrics | AV:L/AC:L/Au:N/C:N/I:N/A:C |
| Access Vector | Local |
| Access Complexity | Low |
| 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 Server EUS (v. 6.0) (kernel) | RHSA-2011:0883 | 2011-06-21 |
| MRG Grid for RHEL 5 Server (kernel-rt) | RHSA-2011:0500 | 2011-05-10 |
| Red Hat Enterprise Linux 6 (kernel) | RHSA-2011:0542 | 2011-05-19 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise MRG 1 | realtime-kernel | Will not fix |
| Red Hat Enterprise Linux 5 | kernel | Will not fix |
| Red Hat Enterprise Linux 4 | kernel | Will not fix |
Acknowledgements
Red Hat would like to thank Nelson Elhage for reporting this issue.CVE description copyright © 2017, The MITRE Corporation