CVE Database

CVE-2010-4160

Impact: Important
Public: 2010-11-01
Bugzilla: 651892: CVE-2010-4160 kernel: L2TP send buffer allocation size overflows

Details

The MITRE CVE dictionary describes this issue as:

Multiple integer overflows in the (1) pppol2tp_sendmsg function in net/l2tp/l2tp_ppp.c, and the (2) l2tp_ip_sendmsg function in net/l2tp/l2tp_ip.c, in the PPPoL2TP and IPoL2TP implementations in the Linux kernel before 2.6.36.2 allow local users to cause a denial of service (heap memory corruption and panic) or possibly gain privileges via a crafted sendto call.

Find out more about CVE-2010-4160 from the MITRE CVE dictionary and NIST NVD.

Statement

The Linux kernel as shipped with Red Hat Enterprise Linux 3, 4 and 5 did not
include L2TP functionality, and therefore are not affected by this
issue. This has been addressed in Red Hat Enterprise Linux 6 and Red Hat
Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0007.html and https://rhn.redhat.com/errata/RHSA-2011-0330.html.

CVSS v2 metrics

Base Score: 6.9
Base Metrics: AV:L/AC:M/Au:N/C:C/I:C/A:C
Access Vector: Local
Access Complexity: Medium
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
MRG Grid for RHEL 5 Server (kernel-rt) RHSA-2011:0330 March 10, 2011
Red Hat Enterprise Linux version 6 (kernel) RHSA-2011:0007 January 11, 2011

External References

Acknowledgements

Red Hat would like to thank Dan Rosenberg for reporting this issue.

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