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Date: Tue, 18 Mar 2014 10:08:49 -0400 (EDT)
From: cve-assign@...re.org
To: mmcallis@...hat.com
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com,
741659@...s.debian.org
Subject: Re: CVE request: kdirstat, insufficient quote escaping leading to arbitrary command execution
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> The Debian report is about single quotes. On Fedora
> (https://bugzilla.redhat.com/show_bug.cgi?id=1077059) double quotes were
> needed.
The recent upstream patch:
https://bitbucket.org/jeromerobert/k4dirstat/commits/1ad2e96d73fa06cd9be0f3749b337c03575016aa#chg-src/kcleanup.cpp
addressed the ' issue using the '\\'' approach.
http://dl.fedoraproject.org/pub/fedora/linux/releases/19/Everything/source/SRPMS/k/k4dirstat-2.7.0-0.9.20101010git6c0a9e6.fc19.src.rpm
has:
expanded.replace( QRegExp( "%p" ),
"\"" + QString::fromLocal8Bit( item->url() ) + "\"" );
expanded.replace( QRegExp( "%n" ),
"\"" + QString::fromLocal8Bit( item->name() ) + "\"" );
As mentioned in the
http://openwall.com/lists/oss-security/2014/02/09/1 post, attempted
use of " for this type of quoting is a conceptually different problem
than attempted use of ' for this type of quoting, even if both
attempts are ultimately incorrect.
(We did not try to check whether the upstream version made a change
from incorrect use of " to incorrect use of ' at some point. This
could be considered an incomplete fix.)
Use CVE-2014-2527 for the vulnerability involving use of " (as shown
in the above calls to expanded.replace). This CVE assignment applies
to any upstream code or any Fedora-specific code that has this
specific issue.
Use CVE-2014-2528 for the vulnerability involving use of ' (as shown
in the above https://bitbucket.org commit).
If anyone happens to identify a version of the code that does not
attempt any type of quoting, a third CVE assignment may be possible.
> (And maybe it should be escaping ';' too if not already?)
This would typically not be addressed as a separate fix.
- --
CVE assignment team, MITRE CVE Numbering Authority
M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through http://cve.mitre.org/cve/request_id.html ]
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