CVE-2011-1171

Impact:
Low
Public Date:
2011-03-10
IAVA:
2012-A-0020
Bugzilla:
689327: CVE-2011-1171 kernel: ipv4: netfilter: ip_tables: fix infoleak to userspace

The MITRE CVE dictionary describes this issue as:

net/ipv4/netfilter/ip_tables.c in the IPv4 implementation in the Linux kernel before 2.6.39 does not place the expected '\0' character at the end of string data in the values of certain structure members, which allows local users to obtain potentially sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability to issue a crafted request, and then reading the argument to the resulting modprobe process.

Find out more about CVE-2011-1171 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance
life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates. Future kernel updates in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG may address this flaw.

CVSS v2 metrics

Base Score 2.1
Base Metrics AV:L/AC:L/Au:N/C:P/I:N/A:N
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None

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
Red Hat Enterprise Linux 5 (kernel) RHSA-2011:0833 2011-05-31
Red Hat Enterprise Linux 6 (kernel) RHSA-2011:0542 2011-05-19
MRG Grid for RHEL 5 Server (kernel-rt) RHSA-2011:0500 2011-05-10

Acknowledgements

Red Hat would like to thank Vasiliy Kulikov of Openwall for reporting this issue.
Last Modified

CVE description copyright © 2017, The MITRE Corporation