Date: Mon, 17 Dec 2001 15:47:41 -0500 (EST)
From: EnGarde Secure Linux <[email protected]>
To: [email protected], [email protected]Subject: [ESA-20011217-01] 'glibc' globbing buffer overflow
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
+------------------------------------------------------------------------+
| EnGarde Secure Linux Security Advisory December 17, 2001 |
| http://www.engardelinux.org/ ESA-20011217-01 |
| |
| Package: glibc |
| Summary: 'glibc' globbing buffer overflow |
+------------------------------------------------------------------------+
EnGarde Secure Linux is a secure distribution of Linux that features
improved access control, host and network intrusion detection, Web
based secure remote management, complete e-commerce using AllCommerce,
and integrated open source security tools.
OVERVIEW
- --------
There is a buffer overflow in glibc's globbing functions.
DETAIL
- ------
While researching the recent globbing bugs in wu-ftpd, Flavio Veloso
<[email protected]> discovered (with the assistance of Jakub Jelinek
<[email protected]>) a buffer overflow in glibc's glob(3)
implementation. This vulnerability can only be triggered by programs
that use glibc's globbing functions.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2001-0886 to this issue.
SOLUTION
- --------
All users should upgrade to the most recent version as outlined in
this advisory.
Guardian Digital recently made available the Guardian Digital Secure
Update, a means to proactively keep systems secure and manage
system software. EnGarde users can automatically update their system
using the Guardian Digital WebTool secure interface.
If choosing to manually upgrade this package, updates can be
obtained from:
ftp://ftp.engardelinux.org/pub/engarde/stable/updates/http://ftp.engardelinux.org/pub/engarde/stable/updates/
Before upgrading the package, the machine must either:
a) be booted into a "standard" kernel; or
b) have LIDS disabled.
To disable LIDS, execute the command:
# /sbin/lidsadm -S -- -LIDS_GLOBAL
To install the updated package, execute the command:
# rpm -Uvh <filename>
You must now update the LIDS configuration by executing the command:
# /usr/sbin/config_lids.pl
To re-enable LIDS (if it was disabled), execute the command:
# /sbin/lidsadm -S -- +LIDS_GLOBAL
To verify the signatures of the updated packages, execute the command:
# rpm -Kv <filename>
UPDATED PACKAGES
- ----------------
These updated packages are for EnGarde Secure Linux 1.0.1 (Finestra).
Source Packages:
SRPMS/glibc-2.1.3-1.0.4.src.rpm
MD5 Sum: 94ad720b0450dc659e2d5ed05d2350dc
Binary Packages:
i386/glibc-2.1.3-1.0.4.i386.rpm
MD5 Sum: 6a59be712e55c3da6e027ba44599ab9e
i686/glibc-2.1.3-1.0.4.i386.rpm
MD5 Sum: 6a59be712e55c3da6e027ba44599ab9e
REFERENCES
- ----------
Guardian Digital's public key:
http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY
Credit for the discovery of this bug goes to:
Flavio Veloso <[email protected]>
glibc's Official Web Site:
http://www.gnu.org/software/glibc/
CAN-2001-0886 (Buffer overflow in glob function of glibc)
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0886
Security Contact: [email protected]
EnGarde Advisories: http://www.engardelinux.org/advisories.html
- --------------------------------------------------------------------------
$Id: ESA-20011217-glibc,v 1.3 2001/12/17 19:48:17 rwm Exp $
- --------------------------------------------------------------------------
Author: Ryan W. Maple, <[email protected]>
Copyright 2001, Guardian Digital, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org
iD8DBQE8Hln1HD5cqd57fu0RAtG1AJ9EvnH4wHtAw657xNeddtuiJOJ4bgCfcr4I
IFa7p43WPGP3HEZrfAeqgXM=
=hGmC
-----END PGP SIGNATURE-----
