[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-Id: <20150519193654.29FC1B2E0CC@smtpvbsrv1.mitre.org>
Date: Tue, 19 May 2015 15:36:54 -0400 (EDT)
From: cve-assign@...re.org
To: P@...igBrady.com
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: coreutils sort heap overflow
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
> a heap overflow can be triggered in sort(1) as per:
> https://bugzilla.suse.com/show_bug.cgi?id=928749
> https://github.com/pixelb/coreutils/commit/bea5e36cc876ed627bb5e0eca36fdfaa6465e940
> src/sort.c (keycompare_mb) ... The current implementation is character
> based, so we allocate the worst case size for the conversion buffer,
> which is MB_CUR_MAX for each input byte.
This appears to be caused by performing a size calculation without
properly considering the number of bytes occupied by multibyte
characters. Use CVE-2015-4041.
> https://github.com/pixelb/coreutils/commit/bea5e36cc876ed627bb5e0eca36fdfaa6465e940
> There is also a theoretical buffer overflow with data around
> SIZE_MAX/2.
This appears to be related to the new "SIZE_MAX - lenb - 2 < lena"
test, which is not specifically associated with use of multibyte
characters. Use CVE-2015-4042.
- --
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 ]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (SunOS)
iQEcBAEBAgAGBQJVW5B2AAoJEKllVAevmvmsTCYIALr2h2N45b4ENpHrfUechDFZ
q2cJqpoDUJ3B4PSendkoh9BeH7fwwVVgSwXJpVtU0vaJOh0SXsioNahkuCpp0eA1
1v39Lki0eW5/ZDxDzqDcv7m9oLGmI4LjrShqUG11UJhsNQ+6lEJAtz7+VJllW/V4
NV1ixrRW/pCOpwX1Lp57KO1VSihbb+Iol+gWSTAFaJjn8DqrWrbWBVkVVk1rv3dW
skkco5SKFUWJBdzPb/PkmEQ71kxXrlsEKBG5wrHHOKjIdQEj9fjnJ/HXo7AoEg1+
SLq0CV2nVZltIQXvPvxIBvO8a1tM9g+bLoDuCDhyfYG+rCDMkOEBN4nvXyc1+Mw=
=BJHX
-----END PGP SIGNATURE-----
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
