Bug 884685 (CVE-2012-5630) - CVE-2012-5630 libuser: TOCTOU race conditions by copying and removing directory trees
Summary: CVE-2012-5630 libuser: TOCTOU race conditions by copying and removing directo...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2012-5630
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: 908852 928846
Blocks: 884691
TreeView+ depends on / blocked
 
Reported: 2012-12-06 14:52 UTC by Jan Lieskovsky
Modified: 2019-09-29 12:58 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-08-22 15:10:41 UTC


Attachments (Terms of Use)

Description Jan Lieskovsky 2012-12-06 14:52:36 UTC
A TOCTOU (time-of-check time-of-use) race condition was found in the way libuser, a user and group account administration library, performed copying and removal of (user) directory trees. A local attacker, with permissions to write into particular directory, could use this flaw to conduct symbolic link attacks, leading to their ability to alter / remove directories outside of this directory (tree), if this directory was simultaneously modified (copied or removed) via libuser functionality.

This issue was found by Florian Weimer of Red Hat Product Security Team.

Comment 1 Jan Lieskovsky 2012-12-06 14:56:34 UTC
This issue affects the versions of the libuser package, as shipped with Red Hat Enterprise Linux 5 and 6.

--

This issue affects the versions of the libuser package, as shipped with Fedora release of 16 and 17.

Comment 8 Huzaifa S. Sidhpurwala 2012-12-10 06:01:26 UTC
This issue has been assigned CVE-2012-5630

Comment 30 Huzaifa S. Sidhpurwala 2013-03-28 15:03:07 UTC
Created libuser tracking bugs for this issue

Affects: fedora-all [bug 928846]

Comment 33 Fedora Update System 2013-04-18 02:46:42 UTC
libuser-0.58-3.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 34 Vincent Danen 2015-08-22 15:10:31 UTC
Statement:

Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.


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