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Bug 916115 - (CVE-2013-1773) CVE-2013-1773 kernel: VFAT slab-based buffer overflow
CVE-2013-1773 kernel: VFAT slab-based buffer overflow
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
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Assigned To: Red Hat Product Security
impact=important,public=20121209,repo...
: Security
Depends On: 916118 916119 916120 916121 965719 965720
Blocks: 916136
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Reported: 2013-02-27 05:45 EST by Prasad J Pandit
Modified: 2015-07-31 02:58 EDT (History)
29 users (show)

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Doc Type: Bug Fix
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Last Closed: 2013-04-23 16:53:31 EDT
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RHEL 7.3 requirements from Atomic Host:


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Description Prasad J Pandit 2013-02-27 05:45:33 EST
Linux kernel built with support to VFAT file system is vulnerable to a buffer
overflow flaw which happens when converting UTF8 character string to UTF16
via function: utf8s_to_utf16s.

A local user able to mount, or with access to, a FAT file system with the "utf8=1" option could use this flaw to crash the system or, potentially, to escalate their privileges.

Upstream fix:
 -> https://git.kernel.org/linus/0720a06a7518c9d0c0125bd5d1f3b6264c55c3dd

Reference:
 -> http://www.openwall.com/lists/oss-security/2013/02/26/5
 -> http://www.exploit-db.com/exploits/23248/
Comment 2 Prasad J Pandit 2013-02-27 06:04:48 EST
Statement:

This issue does not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 5.

This issue did affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2.
Comment 4 errata-xmlrpc 2013-03-06 14:26:16 EST
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2013:0566 https://rhn.redhat.com/errata/RHSA-2013-0566.html
Comment 5 errata-xmlrpc 2013-04-23 14:27:17 EDT
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
Comment 7 errata-xmlrpc 2013-06-11 13:40:05 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6.3 EUS - Server Only

Via RHSA-2013:0928 https://rhn.redhat.com/errata/RHSA-2013-0928.html
Comment 8 errata-xmlrpc 2013-07-09 11:05:42 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6.2 EUS - Server Only

Via RHSA-2013:1026 https://rhn.redhat.com/errata/RHSA-2013-1026.html

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