Bug 920783 (CVE-2013-1848) - CVE-2013-1848 kernel: ext3: format string issues
Summary: CVE-2013-1848 kernel: ext3: format string issues
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2013-1848
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: 920784 920785 920786 920787 965715 965716
Blocks: 920790
TreeView+ depends on / blocked
 
Reported: 2013-03-12 17:57 UTC by Petr Matousek
Modified: 2021-02-17 07:56 UTC (History)
15 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-08-24 13:24:39 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:0829 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2013-05-20 20:47:02 UTC
Red Hat Product Errata RHSA-2013:0928 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2013-06-11 21:37:17 UTC
Red Hat Product Errata RHSA-2013:1026 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2013-07-09 19:04:31 UTC
Red Hat Product Errata RHSA-2013:1051 0 normal SHIPPED_LIVE Moderate: kernel security and bug fix update 2013-07-16 22:22:03 UTC
Red Hat Product Errata RHSA-2013:1080 0 normal SHIPPED_LIVE Moderate: kernel security and bug fix update 2013-07-16 21:21:21 UTC

Description Petr Matousek 2013-03-12 17:57:49 UTC 
ext3_msg() takes the printk prefix as the second parameter and the format string as the third parameter. Two callers of ext3_msg omit the prefix and pass the format string as the second parameter and the first parameter to the format string as the third parameter. In both cases this string comes from an arbitrary source.

An user able to mount ext3 filesystems could use this flaw to crash the system or, potentially, increase their privileges.

Upstream fix:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8d0c2d10dd72c5292eda7a06231056a4c972e4cc
Comment 1 Petr Matousek 2013-03-12 17:59:51 UTC 
Statement:

This issue did not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5 because it did not backport the commit 4cf46b67eb that introduced this issue.

This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2 may address this issue.
Comment 4 errata-xmlrpc 2013-05-20 16:52:00 UTC 
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2013:0829 https://rhn.redhat.com/errata/RHSA-2013-0829.html
Comment 6 errata-xmlrpc 2013-06-11 17:41:06 UTC 
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 7 errata-xmlrpc 2013-07-09 15:06:55 UTC 
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
Comment 8 errata-xmlrpc 2013-07-16 17:28:13 UTC 
This issue has been addressed in following products:

  OpenStack 3 for RHEL 6

Via RHSA-2013:1080 https://rhn.redhat.com/errata/RHSA-2013-1080.html
Comment 9 errata-xmlrpc 2013-07-16 18:24:41 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:1051 https://rhn.redhat.com/errata/RHSA-2013-1051.html
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