CVE-2011-3191

Impact:
Important
Public Date:
2011-08-23
IAVA:
2012-A-0056, 2012-A-0073
Bugzilla:
732869: CVE-2011-3191 kernel: cifs: signedness issue in CIFSFindNext()

The MITRE CVE dictionary describes this issue as:

Integer signedness error in the CIFSFindNext function in fs/cifs/cifssmb.c in the Linux kernel before 3.1 allows remote CIFS servers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a large length value in a response to a read request for a directory.

Find out more about CVE-2011-3191 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue affects the Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, 6, and Red Hat Enterprise MRG. It has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1386.html, https://rhn.redhat.com/errata/RHSA-2011-1465.html, and https://rhn.redhat.com/errata/RHSA-2012-0010.html. 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.

CVSS v2 metrics

Base Score 6.8
Base Metrics AV:A/AC:H/Au:N/C:C/I:C/A:C
Access Vector Adjacent Network
Access Complexity High
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
Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2012:0010 2012-01-10
Red Hat Enterprise Linux 6 (kernel) RHSA-2011:1465 2011-11-22
Red Hat Enterprise Linux 5 (kernel) RHSA-2011:1386 2011-10-20

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 4 kernel Will not fix

Acknowledgements

Red Hat would like to thank Darren Lavender for reporting this issue.

Last Modified

CVE description copyright © 2017, The MITRE Corporation