Bug 922344 (CVE-2012-6547) - CVE-2012-6547 Kernel: net/tun: ioctl() based information leaks
Summary: CVE-2012-6547 Kernel: net/tun: ioctl() based information leaks
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2012-6547
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: Engineering922348 Engineering922349 Engineering922350 Engineering922351
Blocks: Embargoed858947
TreeView+ depends on / blocked
 
Reported: 2013-03-16 10:56 UTC by Prasad Pandit
Modified: 2021-02-17 07:54 UTC (History)
26 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-04-23 21:20:27 UTC

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:0744 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2013-04-23 22:25:40 UTC
Red Hat Product Errata RHSA-2013:0747 0 normal SHIPPED_LIVE Moderate: kernel security and bug fix update 2013-04-16 23:03:57 UTC

Description Prasad Pandit 2013-03-16 10:56:06 UTC 
Linux kernel built with Universal TUN/TAP device driver(CONFIG_TUN) support
is vulnerable to an information leakage flaw. It occurs while doing an
ioctl on the character device.

A user/program could use this flaw to leak kernel memory bytes.

Upstream fix:
-------------
 -> https://git.kernel.org/linus/a117dacde0288f3ec60b6e5bcedae8fa37ee0dfc

Reference:
----------
 -> http://www.openwall.com/lists/oss-security/2013/03/14/21
Comment 1 Prasad Pandit 2013-03-16 11:01:09 UTC 
Statement:

This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise MRG 2.

This issue did affect the version of the Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.
Comment 3 errata-xmlrpc 2013-04-16 19:07:10 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2013:0747 https://rhn.redhat.com/errata/RHSA-2013-0747.html
Comment 4 errata-xmlrpc 2013-04-23 18:32:21 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:0744 https://rhn.redhat.com/errata/RHSA-2013-0744.html
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