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CVE-2010-3861

Impact:
Moderate
Public Date:
2010-10-08
Bugzilla:
646725: CVE-2010-3861 kernel: heap contents leak from ETHTOOL_GRXCLSRLALL

The MITRE CVE dictionary describes this issue as:

The ethtool_get_rxnfc function in net/core/ethtool.c in the Linux kernel before 2.6.36 does not initialize a certain block of heap memory, which allows local users to obtain potentially sensitive information via an ETHTOOL_GRXCLSRLALL ethtool command with a large info.rule_cnt value, a different vulnerability than CVE-2010-2478.

Find out more about CVE-2010-3861 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue did not affect the versions of Linux kernel as shipped with Red Hat
Enterprise Linux 3 and 4, as they do not include support for the Neptune
Ethernet driver. It did not affect Red Hat Enterprise Linux 5 as it did not contain the upstream commit 0853ad66 that introduced this flaw.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

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 6 (kernel) RHSA-2011:0007 2011-01-11
MRG Grid for RHEL 5 Server (kernel-rt) RHSA-2010:0958 2010-12-08

Acknowledgements

Red Hat would like to thank Kees Cook for reporting this issue.

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