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CVE-2010-2943

Impact:
Moderate
Public Date:
2010-06-20
IAVA:
2011-A-0147
Bugzilla:
624923: CVE-2010-2943 kernel: xfs: validate inode numbers in file handles correctly

The MITRE CVE dictionary describes this issue as:

The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows remote authenticated users to read unlinked files, or read or overwrite disk blocks that are currently assigned to an active file but were previously assigned to an unlinked file, by accessing a stale NFS filehandle.

Find out more about CVE-2010-2943 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 3, 4, and Red Hat Enterprise MRG as they did not include support for the XFS file system. A future kernel update in Red Hat Enterprise
Linux 5 will address this issue.

CVSS v2 metrics

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

Base Score 3.6
Base Metrics AV:L/AC:L/Au:N/C:P/I:P/A:N
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
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 5 (kernel) RHSA-2010:0723 2010-09-29

Last Modified