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CVE Database

CVE-2011-1478

Impact: Moderate
Public: 2011-02-02
Bugzilla: 691270: CVE-2011-1478 kernel: gro: reset dev and skb_iff on skb reuse
IAVA: 2011-A-0147

Details

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 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
MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2011:1253 September 12, 2011
RHEV Hypervisor for RHEL-5 (rhev-hypervisor) RHSA-2011:0439 April 13, 2011
Red Hat Enterprise Linux version 5 (kernel) RHSA-2011:0429 April 12, 2011
Red Hat Enterprise Linux version 6 (kernel) RHSA-2011:0421 April 08, 2011

External References

Acknowledgements

Red Hat would like to thank Ryan Sweat for reporting this issue.

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.