Your message dated Sun, 24 Oct 2010 19:01:48 +0300
with message-id <[email protected]>
and subject line Bug#598286 Close bts:debian
has caused the Debian Bug report #598286,
regarding cowbell: CVE-2010-3353: insecure library loading
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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598286: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=598286
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: cowbell
Version: 0.2.7.1-5
Severity: grave
Tags: security
User: [email protected]
Usertags: ldpath
Hello,
During a review of the Debian archive, I've found your package to
contain a script that can be abused by an attacker to execute arbitrary
code.
The vulnerability is introduced by an insecure change to
LD_LIBRARY_PATH, and environment variable used by ld.so(8) to look for
libraries on a directory other than the standard paths.
Vulnerable code follows:
/usr/bin/cowbell line 4:
export LD_LIBRARY_PATH=${libdir}${LD_LIBRARY_PATH+:$LD_LIBRARY_PATH}
When there's an empty item on the colon-separated list of
LD_LIBRARY_PATH, ld.so treats it as '.' (i.e. CWD/$PWD.)
If the given script is executed from a directory where a potential,
local, attacker can write files to, there's a chance to exploit this
bug.
This vulnerability has been assigned the CVE id CVE-2010-3353. Please make sure
you mention it when forwarding this report to upstream and when fixing
this bug (everywhere: upstream and here at Debian.)
[0] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3353
[1] http://security-tracker.debian.org/tracker/CVE-2010-3353
Sincerely,
Raphael Geissert
--- End Message ---
--- Begin Message ---
Reason for close:
Analysis according to http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=598286#25
is correct: there is no vulnerability.
The extra check proposed in NMU
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=598286#30 is not needed
as perl Debian release Team (Julien Cristau):
IRC #debian-qa
<jcristau> if the user set LD_LIBRARY_PATH="::" then they shot
themselves in the foot, and you're not
supposed to clean up after them.
--- End Message ---
