CVE-2011-1478
The MITRE CVE dictionary describes this issue as:
The napi_reuse_skb function in net/core/dev.c in the Generic Receive Offload (GRO) implementation in the Linux kernel before 2.6.38 does not reset the values of certain structure members, which might allow remote attackers to cause a denial of service (NULL pointer dereference) via a malformed VLAN frame.
Find out more about CVE-2011-1478 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 4 as it did not support Generic Receive Offload (GRO). It has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0429.html, https://rhn.redhat.com/errata/RHSA-2011-0421.html and https://rhn.redhat.com/errata/RHSA-2011-1253.html.
CVSS v2 metrics
| Base Score | 5.7 |
|---|---|
| Base Metrics | AV:A/AC:M/Au:N/C:N/I:N/A:C |
| Access Vector | Adjacent Network |
| 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 5 (kernel) | RHSA-2011:0429 | 2011-04-12 |
| Red Hat Enterprise Linux 6 (kernel) | RHSA-2011:0421 | 2011-04-08 |
| RHEV Agents (VDSM) | RHSA-2011:0439 | 2011-04-13 |
| Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) | RHSA-2011:1253 | 2011-09-12 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise MRG 1.3 | realtime-kernel | Will not fix |
Acknowledgements
Red Hat would like to thank Ryan Sweat for reporting this issue.CVE description copyright © 2017, The MITRE Corporation