CVE-2013-0157: Infoleak
First published: Sun Jan 06 2013(Updated: )
(a) mount and (b) umount in util-linux 2.14.1, 2.17.2, and probably other versions allow local users to determine the existence of restricted directories by (1) using the --guess-fstype command-line option or (2) attempting to mount a non-existent device, which generates different error messages depending on whether the directory exists.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| util-linux mount | =2.14.1 | |
| util-linux mount | =2.17.2 |
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Reference Links
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=697464
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=892391
- http://git.kernel.org/?p=utils/util-linux/util-linux.git;a=commit;h=33c5fd0c5a774458470c86f9d318d8c48a9c9ccb
- http://git.kernel.org/?p=utils/util-linux/util-linux.git;a=commit;h=5ebbc3865d1e53ef42e5f121c41faab23dd59075
- http://git.kernel.org/?p=utils/util-linux/util-linux.git;a=commit;h=cc8cc8f32c863f3ae6a8a88e97b47bcd6a21825f
- http://git.kernel.org/?p=utils/util-linux/util-linux.git;a=commit;h=0377ef91270d06592a0d4dd009c29e7b1ff9c9b8
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=892456
- https://rhn.redhat.com/errata/RHSA-2013-0517.html
- https://access.redhat.com/support/policy/updates/errata/
- https://bugzilla.redhat.com/show_bug.cgi?id=892330
- http://bugs.debian.org/697464
- http://marc.info/?l=oss-security&m=135749410312247&w=2
- http://osvdb.org/88953
- http://rhn.redhat.com/errata/RHSA-2013-0517.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:154
Frequently Asked Questions
What is the severity of CVE-2013-0157?
CVE-2013-0157 has a low severity rating as it allows local users to enumerate restricted directories but does not lead to direct code execution.
How do I fix CVE-2013-0157?
To fix CVE-2013-0157, ensure that you update util-linux to a version that addresses this vulnerability.
Which versions of util-linux are affected by CVE-2013-0157?
CVE-2013-0157 affects util-linux versions 2.14.1 and 2.17.2 specifically, among possibly other versions.
What methods do local users use to exploit CVE-2013-0157?
Local users can exploit CVE-2013-0157 by using the --guess-fstype option or by attempting to mount a non-existent device.
Does CVE-2013-0157 require remote access to exploit?
No, CVE-2013-0157 does not require remote access as it can be exploited locally.
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- version/util-linux mount/2.14.1
- version/util-linux mount/2.17.2