Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2008.0733 -- [UNIX/Linux][RedHat]
Moderate: vsftpd security update
25 July 2008
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: vsftpd
Publisher: Red Hat
Operating System: Red Hat Linux 4
Red Hat Linux 3
UNIX variants (UNIX, Linux, OSX)
Impact: Denial of Service
Access: Remote/Unauthenticated
CVE Names: CVE-2008-2375
Original Bulletin: https://rhn.redhat.com/errata/RHSA-2008-0579.html
Comment: Note that this bulletin contains two (2) Red Hat advisories.
This advisory references vulnerabilities in products which run
on platforms other than Red Hat. It is recommended that
administrators running vsftpd check for an updated version of the
software for their operating system.
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Moderate: vsftpd security and bug fix update
Advisory ID: RHSA-2008:0680-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0680.html
Issue date: 2008-07-24
CVE Names: CVE-2008-2375
=====================================================================
1. Summary:
An updated vsftpd package that fixes a security issue and various bugs is
now available.
This update has been rated as having moderate security impact by the Red
Hat Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
3. Description:
vsftpd (Very Secure File Transfer Protocol (FTP) daemon) is a secure FTP
server for Linux and Unix-like systems.
The version of vsftpd as shipped in Red Hat Enterprise Linux 4 when used in
combination with Pluggable Authentication Modules (PAM) had a memory leak
on an invalid authentication attempt. Since vsftpd prior to version 2.0.5
allows any number of invalid attempts on the same connection this memory
leak could lead to an eventual DoS. (CVE-2008-2375)
This update mitigates this security issue by including a backported patch
which terminates a session after a given number of failed log in attempts.
The default number of attempts is 3 and this can be configured using the
"max_login_fails" directive.
This package also addresses the following bugs:
* when uploading unique files, a bug in vsftpd caused the file to be saved
with a suffix '.1' even when no previous file with that name existed. This
issues is resolved in this package.
* when vsftpd was run through the init script, it was possible for the init
script to print an 'OK' message, even though the vsftpd may not have
started. The init script no longer produces a false verification with this
update.
* vsftpd only supported usernames with a maximum length of 32 characters.
The updated package now supports usernames up to 128 characters long.
* a system flaw meant vsftpd output could become dependent on the timing or
sequence of other events, even when the "lock_upload_files" option was set.
If a file, filename.ext, was being uploaded and a second transfer of the
file, filename.ext, was started before the first transfer was finished, the
resultant uploaded file was a corrupt concatenation of the latter upload
and the tail of the earlier upload. With this updated package, vsftpd
allows the earlier upload to complete before overwriting with the latter
upload, fixing the issue.
* the 'lock_upload_files' option was not documented in the manual page. A
new manual page describing this option is included in this package.
* vsftpd did not support usernames that started with an underscore or a
period character. These special characters are now allowed at the beginning
of a username.
* when storing a unique file, vsftpd could cause an error for some clients.
This is rectified in this package.
* vsftpd init script was found to not be Linux Standards Base compliant.
This update corrects their exit codes to conform to the standard.
All vsftpd users are advised to upgrade to this updated package, which
resolves these issues.
4. Solution:
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188
5. Bugs fixed (http://bugzilla.redhat.com/):
197141 - vsftpd 2.0.1 memory leak
206843 - vsftpd is checked wrongly in init script
236326 - maximum username length too short
240550 - vsftpd has a create/lock race condition which corrupts uploads
250727 - Uploaded file corrupted when two connections from same client uploading same file simultaneously
316381 - lock_upload_files not documented in vsftpd.conf man page
408431 - Memory leak in pattern matching function
431450 - Wrong init script
453376 - CVE-2008-2375 older vsftpd authentication memory leak
6. Package List:
Red Hat Enterprise Linux AS version 4:
Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/vsftpd-2.0.1-6.el4.src.rpm
i386:
vsftpd-2.0.1-6.el4.i386.rpm
vsftpd-debuginfo-2.0.1-6.el4.i386.rpm
ia64:
vsftpd-2.0.1-6.el4.ia64.rpm
vsftpd-debuginfo-2.0.1-6.el4.ia64.rpm
ppc:
vsftpd-2.0.1-6.el4.ppc.rpm
vsftpd-debuginfo-2.0.1-6.el4.ppc.rpm
s390:
vsftpd-2.0.1-6.el4.s390.rpm
vsftpd-debuginfo-2.0.1-6.el4.s390.rpm
s390x:
vsftpd-2.0.1-6.el4.s390x.rpm
vsftpd-debuginfo-2.0.1-6.el4.s390x.rpm
x86_64:
vsftpd-2.0.1-6.el4.x86_64.rpm
vsftpd-debuginfo-2.0.1-6.el4.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/vsftpd-2.0.1-6.el4.src.rpm
i386:
vsftpd-2.0.1-6.el4.i386.rpm
vsftpd-debuginfo-2.0.1-6.el4.i386.rpm
ia64:
vsftpd-2.0.1-6.el4.ia64.rpm
vsftpd-debuginfo-2.0.1-6.el4.ia64.rpm
x86_64:
vsftpd-2.0.1-6.el4.x86_64.rpm
vsftpd-debuginfo-2.0.1-6.el4.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2375
http://www.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2008 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (GNU/Linux)
iD8DBQFIiLxjXlSAg2UNWIIRAtYVAJ4tHv04keg0koYFqpZdmTk3EQjwPwCgreNP
tHUJ4dM2RbOceKZaZ+Tz0Gg=
=wnyk
- -----END PGP SIGNATURE-----
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Moderate: vsftpd security update
Advisory ID: RHSA-2008:0579-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0579.html
Issue date: 2008-07-24
CVE Names: CVE-2008-2375
=====================================================================
1. Summary:
An updated vsftpd package that fixes a security issue is now available.
This update has been rated as having moderate security impact by the Red
Hat Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
3. Description:
vsftpd (Very Secure File Transfer Protocol (FTP) daemon) is a secure FTP
server for Linux and Unix-like systems.
The version of vsftpd as shipped in Red Hat Enterprise Linux 3 when used in
combination with Pluggable Authentication Modules (PAM) had a memory leak
on an invalid authentication attempt. Since vsftpd prior to version 2.0.5
allows any number of invalid attempts on the same connection this memory
leak could lead to an eventual DoS. (CVE-2008-2375)
This update mitigates this security issue by including a backported patch
which terminates a session after a given number of failed log in attempts.
The default number of attempts is 3 and this can be configured using the
"max_login_fails" directive.
All vsftpd users should upgrade to this updated package, which addresses
this vulnerability.
4. Solution:
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188
5. Bugs fixed (http://bugzilla.redhat.com/):
453376 - CVE-2008-2375 older vsftpd authentication memory leak
6. Package List:
Red Hat Enterprise Linux AS version 3:
Source:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/vsftpd-1.2.1-3E.16.src.rpm
i386:
vsftpd-1.2.1-3E.16.i386.rpm
vsftpd-debuginfo-1.2.1-3E.16.i386.rpm
ia64:
vsftpd-1.2.1-3E.16.ia64.rpm
vsftpd-debuginfo-1.2.1-3E.16.ia64.rpm
ppc:
vsftpd-1.2.1-3E.16.ppc.rpm
vsftpd-debuginfo-1.2.1-3E.16.ppc.rpm
s390:
vsftpd-1.2.1-3E.16.s390.rpm
vsftpd-debuginfo-1.2.1-3E.16.s390.rpm
s390x:
vsftpd-1.2.1-3E.16.s390x.rpm
vsftpd-debuginfo-1.2.1-3E.16.s390x.rpm
x86_64:
vsftpd-1.2.1-3E.16.x86_64.rpm
vsftpd-debuginfo-1.2.1-3E.16.x86_64.rpm
Red Hat Enterprise Linux ES version 3:
Source:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/vsftpd-1.2.1-3E.16.src.rpm
i386:
vsftpd-1.2.1-3E.16.i386.rpm
vsftpd-debuginfo-1.2.1-3E.16.i386.rpm
ia64:
vsftpd-1.2.1-3E.16.ia64.rpm
vsftpd-debuginfo-1.2.1-3E.16.ia64.rpm
x86_64:
vsftpd-1.2.1-3E.16.x86_64.rpm
vsftpd-debuginfo-1.2.1-3E.16.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2375
http://www.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2008 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (GNU/Linux)
iD8DBQFIiLwkXlSAg2UNWIIRAr3TAJ4kxkzI7NNKqvt9xb2F8abuHApjFwCgoNRa
5I+/SXj/isJ10sHdOS8kl2M=
=fnwt
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
If you believe that your computer system has been compromised or attacked in
any way, we encourage you to let us know by completing the secure National IT
Incident Reporting Form at:
http://www.auscert.org.au/render.html?it=3192
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
iQCVAwUBSIkxtih9+71yA2DNAQJlKgP/TXUqG0Cg9tKExjUjyy/HxOEXrt/eLBGK
Tc/+IMypHBnqZGP/iDkp9jIAZzF+FKOtAymp9xJBRYsd5zFPSLBDbCC8lzOZcopZ
X6/hudvZNgK2+C1GtsW51aqpudNFewhlrSEHNr4VPCLdfVIyzCXWcrYmH1y7H4yu
uulR2G/Fp2w=
=ox5f
-----END PGP SIGNATURE-----