Bug 1007733 (CVE-2013-4343) - CVE-2013-4343 Kernel: net: use-after-free TUNSETIFF
Summary: CVE-2013-4343 Kernel: net: use-after-free TUNSETIFF
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2013-4343
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1007739 1007741 1007951 1007952
Blocks: 1007721
TreeView+ depends on / blocked
 
Reported: 2013-09-13 08:53 UTC by Prasad Pandit
Modified: 2021-02-17 07:21 UTC (History)
35 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2016-01-27 12:57:03 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:1490 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2013-10-31 20:23:39 UTC

Description Prasad Pandit 2013-09-13 08:53:05 UTC 
Linux kernel built with the Universal TUN/TAP device driver(CONFIG_TUN) support
is vulnerable to a potential privilege escalation via an use-after-free flaw.
It could occur while doing an ioctl(TUNSETIFF) call.

A privileged(CAP_NET_ADMIN) user/program could use this flaw to crash the
kernel resulting DoS or potentially escalate privileges to gain root access
to a system.

Upstream fix:
-------------
 -> https://lkml.org/lkml/2013/9/11/335

Reference:
----------
 -> http://www.openwall.com/lists/oss-security/2013/09/12/3
Comment 1 Prasad Pandit 2013-09-13 08:55:31 UTC 
Statement:

This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.
Comment 3 Prasad Pandit 2013-09-13 08:58:34 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1007741]
Comment 7 Fedora Update System 2013-09-19 02:04:45 UTC 
kernel-3.11.1-200.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 8 Fedora Update System 2013-09-23 00:00:30 UTC 
kernel-3.10.12-100.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 9 Fedora Update System 2013-09-23 00:36:26 UTC 
kernel-3.11.1-300.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 12 errata-xmlrpc 2013-10-31 16:29:40 UTC 
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2013:1490 https://rhn.redhat.com/errata/RHSA-2013-1490.html
Comment 13 John Kacur 2014-02-06 17:17:29 UTC 
Upstream commit 662ca437e714caaab855b12415d6ffd815985bc0
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