Squid Proxy Server contains buffer overflow in parsing of the authentication portion of FTP URLs

2002-03-04T00:00:00
ID VU:613459
Type cert
Reporter CERT
Modified 2002-03-06T15:20:00

Description

Overview

There is a remotely exploitable buffer overflow in the Squid proxy/cache server. Exploitation of this vulnerability could lead to an intruder gaining a shell on the target Squid server.

Description

Squid versions 2.3 and 2.4 are vulnerable to a buffer overflow in the code that parses FTP requests. A crafted FTP request can cause a Squid child process to dump core, and multiple requests can cause a denial of service. It is also reported that this vulnerability may be exploitable to allow arbitrary execution of code. This is not yet confirmed, and does not seem to be a trivial task. In order to exploit this vulnerability, the attacker must be a local user, or the server must permit anonymous logins.


Impact

Exploitation of this vulnerability results in a denial of service. It could also permit an intruder to execute arbitrary code on the target Squid server with the privileges of the Squid process, usually super-user/root. Note that exploiting this vulnerability to execute arbitrary code is not yet confirmed.


Solution

Upgrade to Squid-2.4.STABLE4 or apply the patches provided by your vendor.


Configure the Squid server to drop super-user/root privilege by specifying the chroot option used in squid.conf. If this is done, the attacker will only be able to execute arbitrary code as the user specified in the configuration file.


Vendor Information

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Caldera __ Affected

Updated: March 06, 2002

Status

Affected

Vendor Statement

See, <ftp://stage.caldera.com/pub/security/openserver/CSSA-2002-SCO.7/CSSA-2002-SCO.7.txt>

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

FreeBSD __ Affected

Updated: March 04, 2002

Status

Affected

Vendor Statement

See <ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:12.squid.asc>

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Hewlett Packard __ Affected

Updated: March 06, 2002

Status

Affected

Vendor Statement

HP Support Information Digests

===============================================================================
o Security Bulletin Digest Split
------------------------------

The security bulletins digest has been split into multiple digests
based on the operating system (HP-UX, MPE/iX, and HP Secure OS
Software for Linux). You will continue to receive all security
bulletin digests unless you choose to update your subscriptions.

To update your subscriptions, use your browser to access the
IT Resource Center on the World Wide Web at:

<http://www.itresourcecenter.hp.com/>

Under the Maintenance and Support Menu, click on the "more..." link.
Then use the 'login' link at the left side of the screen to login
using your IT Resource Center User ID and Password.

Under the notifications section (near the bottom of the page), select
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===============================================================================

Digest Name: daily HP Secure OS Software for Linux security bulletins digest
Created: Sat Mar 2 3:00:07 PST 2002

Table of Contents:

Document ID Title
--------------- -----------
HPSBTL0203-028 Security vulnerability in PHP package
HPSBTL0203-027 Updated 2.4 kernel available
HPSBTL0203-026 New squid packages available

The documents are listed below.
-------------------------------------------------------------------------------

Document ID: HPSBTL0203-028
Date Loaded: 20020301
Title: Security vulnerability in PHP package

TEXT

---------------------------------------------------------------
HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #028
Originally issued: 01 March '02
---------------------------------------------------------------

The information in the following Security Bulletin should be acted
upon as soon as possible. Hewlett-Packard Company will not be
liable for any consequences to any customer resulting from the
customer's failure to fully implement instructions in this Security
Bulletin as soon as possible.

Because the vulnerability does not require a HP Secure OS
1.0 patch or re-packaging of the RPM affected by the bulletin, the
RPMs have not been produced or tested by Hewlett-Packard Company.

---------------------------------------------------------------
PROBLEM: Security vulnerability in PHP

PLATFORM: Any system running HP Secure OS software for Linux Release 1.0

DAMAGE: Remote attacker could potentially execute arbitrary code

SOLUTION: Apply the appropriate RPMs (see section B below)

MANUAL ACTIONS: None

AVAILABILITY: The RPMs are available now.
---------------------------------------------------------------
A. Background

PHP is an HTML-embeddable scripting language. A number of flaws have
been found in the way PHP handles multipart/form-data POST requests.
Each of these flaws could allow an attacker to execute arbitrary code
on the remote system. The php package is not included in the default
installation of HP Secure OS Software for Linux release 1.0.

B. Fixing the problem

Hewlett-Packard Company recommends that customers download the RPMs
listed in the following Red Hat Security Advisory:

2002-02-27 php-manual (RHSA-2002-035) Updated PHP packages
are available

<http://www.redhat.com/support/errata/RHSA-2002-035.html>

To install the security bulletin RPMs, use the following sequence
of commands:

1. If you use the tripwire product, we recommend that you run a
a consistency check and fix any violations before installing
the security bulletin RPM.

tripwire --check --interactive

2. Install the bulletin RPM from the root account.

rpm -F <package name>

3. Update the tripwire database

tripwire --check --interactive

NOTE:
The rpm -q command can be used to determine if the
product is installed. Hewlett-Packard Company recommends applying the
Security Bulletin fixes to installed packages only. The -F option
to the RPM installer will only apply the fix if the package is
currently installed on the system. Dependent RPMs can be found by
using the "Find Latest RPMs" search facility at
<http://www.redhat.com/apps/download>. To find the latest dependent
RPM enter the RPM's name in the "By Keyword" box.

C. To subscribe to automatically receive future HP Security
Bulletins from the HP IT Resource Center via electronic
mail, do the following:

Use your browser to access the HP IT Resource Center page
at:

<http://itrc.hp.com>

Use the 'Login' tab at the left side of the screen to login
using your ID and password. Use your existing login or the
"Register" button at the left to create a login. Remember to
save the User ID assigned to you, and your password. This
login provides access to many useful areas of the ITRC.

In the leftmost frame select "Maintenance and Support".

Under the "Notifications" section (near the bottom of
the page), select "Support Information Digests".

To -subscribe- to future HP Security Bulletins or other
Technical Digests, click the check box (in the left column)
for the appropriate digest and then click the "Update
Subscriptions" button at the bottom of the page.

or

To -review- bulletins already released, select the link
(in the middle column) for the appropriate digest.

D. To report new security vulnerabilities, send email to

security-alert@hp.com

Please encrypt any exploit information using the
security-alert PGP key, available from your local key
server. You may also get the security-alert PGP key by
sending a message with a -subject- (not body) of
'get key' (no quotes) to security-alert@hp.com.

Permission is granted for copying and circulating this bulletin to
Hewlett-Packard Company (HP) customers (or the Internet community)
for the purpose of alerting them to problems, if and only if, the
bulletin is not edited or changed in any way, is attributed to HP,
and provided such reproduction and/or distribution is performed
for non-commercial purposes.

Any other use of this information is prohibited. HP is not
liable for any misuse of this information by any third party.
---------------------------------------------------------------
-----End of Document ID: HPSBTL0203-028--------------------------------------

Document ID: HPSBTL0203-027
Date Loaded: 20020301
Title: Updated 2.4 kernel available

TEXT

---------------------------------------------------------------
HEWLETT-PACKARD COMPANY SECURITY ADVISORY: #027
Originally issued: 01 March '02
---------------------------------------------------------------

The information in the following Security Advisory should be acted
upon as soon as possible. Hewlett-Packard Company will not be
liable for any consequences to any customer resulting from the
customer's failure to fully implement instructions in this Security
Advisory as soon as possible.

Because the vulnerability does not require a Hewlett-Packard Secure OS
1.0 patch or re-packaging of the RPM affected by the advisory, the
RPMs have not been produced or tested by Hewlett-Packard.

---------------------------------------------------------------
PROBLEM: Problem with netfilter component within Linux kernel

PLATFORM: Any system running HP Secure OS software for Linux Release 1.0

DAMAGE: None

SOLUTION: Advisory only

MANUAL ACTIONS: None

AVAILABILITY: N/A
---------------------------------------------------------------
A. Background

The Linux Netfilter team has found a problem in the IRC connection
tracking component of the firewall within the linux kernel. This
component is distributed with kernels in Red Hat Linux 7.1 and 7.2.

The netfilter component is not supported on version 1.0 of HP
Secure OS Software for Linux.

B. Fixing the problem

As netfilter is not supported, no action is required. This advisory
was published in reference to the following Red Hat Security Advisory:

2002-02-27 kernel-smp (RHSA-2002-028) Updated 2.4 kernel available

<http://www.redhat.com/support/errata/RHSA-2002-028.html>

The Red Hat Advisory can safely be ignored for Secure OS Software
for Linux customers.

C. To subscribe to automatically receive future HP Security
Bulletins from the HP IT Resource Center via electronic
mail, do the following:

Use your browser to access the HP IT Resource Center page
at:

<http://itrc.hp.com>

Use the 'Login' tab at the left side of the screen to login
using your ID and password. Use your existing login or the
"Register" button at the left to create a login. Remember to
save the User ID assigned to you, and your password. This
login provides access to many useful areas of the ITRC.

In the left most frame select "Maintenance and Support".

Under the "Notifications" section (near the bottom of
the page), select "Support Information Digests".

To -subscribe- to future HP Security Bulletins or other
Technical Digests, click the check box (in the left column)
for the appropriate digest and then click the "Update
Subscriptions" button at the bottom of the page.

or

To -review- bulletins already released, select the link
(in the middle column) for the appropriate digest.

D. To report new security vulnerabilities, send email to

security-alert@hp.com

Please encrypt any exploit information using the
security-alert PGP key, available from your local key
server. You may also get the security-alert PGP key by
sending a message with a -subject- (not body) of
'get key' (no quotes) to security-alert@hp.com.

Permission is granted for copying and circulating this
advisory to Hewlett-Packard (HP)customers (or the Internet
community) for the purpose of alerting them to problems,
if and only if, the advisory is not edited or changed in
any way, is attributed to HP, and provided such reproduction
and/or distribution is performed for non-commercial purposes.

Any other use of this information is prohibited. HP is not
liable for any misuse of this information by any third party.
---------------------------------------------------------------
-----End of Document ID: HPSBTL0203-027--------------------------------------

Document ID: HPSBTL0203-026
Date Loaded: 20020228
Title: New squid packages available

TEXT

---------------------------------------------------------------
HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #026
Originally issued: 28 February '02
---------------------------------------------------------------

The information in the following Security Bulletin should be acted
upon as soon as possible. Hewlett-Packard Company will not be liable
for any consequences to any customer resulting from the customer's
failure to fully implement instructions in this Security Bulletin
as soon as possible.

Because the vulnerability does not require a Hewlett-Packard
Secure OS 1.0 patch or re-packaging of the RPM affected by the
bulletin, the RPMs have not been produced or tested by Hewlett-Packard.

---------------------------------------------------------------
PROBLEM: Memory leak, URL parsing crash, and activation errors in
Squid package

PLATFORM: Any system running HP Secure OS software for Linux Release 1.0

DAMAGE: Resource issue due to memory leak. Possible denial of service
due to FTP URL parsing code. HTCP service is active even if
disabled in configuration file.

SOLUTION: Apply the appropriate RPMs (see section B below)

MANUAL ACTIONS: None

AVAILABILITY: The RPMs are available now.
---------------------------------------------------------------
A. Background

Squid is a high-performance proxy caching server. Various issues
have been found in Squid up to and including version 2.4.STABLE2.
The issues include:
- a memory leak in the SNMP code
- a crash on specially-formatted data in FTP URL parsing
- HTCP would still be active, even if it was disabled in the config
file

The updated pacakge contains Squid version 2.4.STABLE3. Squid
is not included in the default installation of HP Secure OS
Software for Linux Release 1.0.

B. Fixing the problem

Hewlett-Packard Company recommends that customers who have installed
Squid download the RPMs listed in the following Red Hat
Security Advisory:

2002-02-26 squid (RHSA-2002-029) New squid packages available

<http://www.redhat.com/support/errata/RHSA-2002-018.html>

To install the security bulletin RPMs, use the following sequence
of commands:

1. If you use the tripwire product, we recommend that you run a
a consistency check and fix any violations before installing
the security bulletin RPM.

tripwire --check --interactive

2. Install the bulletin RPM from the root account.

rpm -F <bulletin RPM name>

3. Update the tripwire database

tripwire --check --interactive

NOTE:
The rpm -q <package name> command can be used to determine if the
package is installed. Hewlett-Packard recommends applying the
security bulletin fixes to installed packages only. The -F option
to the RPM installer will only apply the fix if the package is
currently installed on the system. Dependent RPMs can be found by
using the "Find Latest RPMs" search facility at
<http://www.redhat.com/apps/download>. To find the latest dependent
RPM enter the RPM's name in the "By Keyword" box.

C. To subscribe to automatically receive future HP Security
Bulletins from the HP IT Resource Center via electronic
mail, do the following:

Use your browser to access the HP IT Resource Center page
at:

<http://itrc.hp.com>

Use the 'Login' tab at the left side of the screen to login
using your ID and password. Use your existing login or the
"Register" button at the left to create a login. Remember to
save the User ID assigned to you, and your password. This
login provides access to many useful areas of the ITRC.

In the left most frame select "Maintenance and Support".

Under the "Notifications" section (near the bottom of
the page), select "Support Information Digests".

To -subscribe- to future HP Security Bulletins or other
Technical Digests, click the check box (in the left column)
for the appropriate digest and then click the "Update
Subscriptions" button at the bottom of the page.

or

To -review- bulletins already released, select the link
(in the middle column) for the appropriate digest.

D. To report new security vulnerabilities, send email to

security-alert@hp.com

Please encrypt any exploit information using the
security-alert PGP key, available from your local key
server. You may also get the security-alert PGP key by
sending a message with a -subject- (not body) of
'get key' (no quotes) to security-alert@hp.com.

Permission is granted for copying and circulating this
bulletin to Hewlett-Packard (HP)customers (or the Internet
community) for the purpose of alerting them to problems,
if and only if, the bulletin is not edited or changed in
any way, is attributed to HP, and provided such reproduction
and/or distribution is performed for non-commercial purposes.

Any other use of this information is prohibited. HP is not
liable for any misuse of this information by any third party.
---------------------------------------------------------------
-----End of Document ID: HPSBTL0203-026--------------------------------------

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

MandrakeSoft __ Affected

Updated: March 04, 2002

Status

Affected

Vendor Statement

See, <http://www.mandrakesecure.net/en/advisories/2002/MDKSA-2002-016.php?dis=8.1>

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Squid __ Affected

Updated: March 04, 2002

Status

Affected

Vendor Statement

See <http://www.squid-cache.org/Advisories/SQUID-2002_1.txt>

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

SuSE __ Affected

Updated: March 06, 2002

Status

Affected

Vendor Statement

-----BEGIN PGP SIGNED MESSAGE-----


SuSE Security Announcement

Package: squid
Announcement-ID: SuSE-SA:2002:008
Date: Mon Mar 5 13:00:00 CET 2002
Affected SuSE products: 6.4, 7.0, 7.1, 7.2, 7.3,
Enterprise Server 7
Vulnerability Type: remote command execution
Severity (1-10): 6
SuSE default package: no
Other affected systems: all systems running vulnerable squid

Content of this advisory:
1) security vulnerability resolved: Heap overflow in squid.
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds
3) standard appendix (further information)


1) problem description, brief discussion, solution, upgrade information

The widely used proxy-server squid contains a heap overflow in one of its
URL constructing functions. Incorrect length-calculations for the user and
passwd fields in ftp-URLs turned out to be the origin of the problem. Only
users from hosts listed in squids ACL-files could trigger the overflow.
The ftp-URL problem is not present in the 6.4, 7.0 and 7.1 distributions,
but other security releated bugs have been fixed there.
A complete history can be found at

<http://www.squid-cache.org/Versions/v2/2.4/bugs/>

Please download the update package for your distribution and verify its
integrity by the methods listed in section 3) of this announcement.
Then, install the package using the command "rpm -Fhv file.rpm" to apply
the update. For users of our SLES-based products, please use the yast
online update.

For the updates to take effect, invoke the following command as root:

/etc/rc.d/squid restart

If you added the htcp_port directive to your squid configuration file
you might now see a warning in the logs about that directive being
unrecognized. While this does not prevent squid from starting, you can
safely remove the directive from squid.conf since HTCP support is
disabled now.

Please note that there are two binary and two source packages for almost
every distribution available.

i386 Intel Platform:

SuSE-7.3
<ftp://ftp.suse.com/pub/suse/i386/update/7.3/n2/squid-2.3.STABLE4-155.i386.rpm>
4b1cff53fddcaf8930ec6738c6763a94
<ftp://ftp.suse.com/pub/suse/i386/update/7.3/n2/squid-beta-2.4.STABLE2-94.i386.rpm>
4ca7f3594ec82b703c6c36c08fb46ecb
source rpm:
<ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/squid-2.3.STABLE4-155.src.rpm>
3751569a6c0ea21057d37cb7d3ca9076
<ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/squid-beta-2.4.STABLE2-94.src.rpm>
99f33e8d1e5b8a3e8d7f6501d26c6e67

SuSE-7.2
<ftp://ftp.suse.com/pub/suse/i386/update/7.2/n2/squid-2.3.STABLE4-155.i386.rpm>
1f098dcb1020df788cc912d88f14bb96
<ftp://ftp.suse.com/pub/suse/i386/update/7.2/n2/squid-beta-2.4.STABLE1-100.i386.rpm>
cc136eeaf6ed4ac305e93d306e6f7461
source rpm:
<ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/squid-2.3.STABLE4-155.src.rpm>
d3fae41b9128f73a0e457376bfb7a5c1
<ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/squid-beta-2.4.STABLE1-100.src.rpm>
c24bf7c45b227b06ae1013dd6fcb9d92

SuSE-7.1
<ftp://ftp.suse.com/pub/suse/i386/update/7.1/n2/squid2-2.2.STABLE5-218.i386.rpm>
5a7b26c99855837331e2d375901a5fce
<ftp://ftp.suse.com/pub/suse/i386/update/7.1/n2/squid23-2.3.STABLE4-75.i386.rpm>
f3a4a2e8d9fa4b56948e8a8d2bc6e2a0
source rpm:
<ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/squid2-2.2.STABLE5-218.src.rpm>
6c208e3f13da8d93fecfdca62c98f46f
<ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/squid23-2.3.STABLE4-75.src.rpm>
ad588c92719bffbc02e72fddf6195dd2

SuSE-7.0
<ftp://ftp.suse.com/pub/suse/i386/update/7.0/n1/squid2-2.2.STABLE5-218.i386.rpm>
f12ae33fd707f4ea86a48a77f48fafc8
<ftp://ftp.suse.com/pub/suse/i386/update/7.0/n1/squid23-2.3.STABLE4-75.i386.rpm>
069c07843355ee473b8b4e10b6726455
source rpm:
<ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/squid2-2.2.STABLE5-218.src.rpm>
5a2a5f0511cfd75f736ef485bcf6e5a1
<ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/squid23-2.3.STABLE4-75.src.rpm>
d4bc56dc9240f5ab9582b746c5c18803

SuSE-6.4
<ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/squid2-2.2.STABLE5-219.i386.rpm>
13a3e9a366d3e09ee6dcc91148c86be7
<ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/squid23-2.3.STABLE4-76.i386.rpm>
53b7ab8cfad2f14b211e1d505d721558
source rpm:
<ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/squid2-2.2.STABLE5-219.src.rpm>
a9b0af504703aa7deeb2e0f6b7b0f512
<ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/squid23-2.3.STABLE4-76.src.rpm>
fbe64c6fbe15e4a9d06847089bb65d13

Sparc Platform:

SuSE-7.3
<ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n2/squid-2.3.STABLE4-53.sparc.rpm>
99bf4711c8e781622fd3aba55f21ae5a
source rpm:
<ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/squid-2.3.STABLE4-53.src.rpm>
d56d66c2fd92efa157b98efb1bf6a0c6

SuSE-7.1
<ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n2/squid2-2.2.STABLE5-208.sparc.rpm>
f6948f9862addc8d6805311b5760c95a
<ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n2/squid23-2.3.STABLE4-60.sparc.rpm>
e6e9bf05539791905710ffb23fbd4801
source rpm:
<ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/squid2-2.2.STABLE5-208.src.rpm>
1ad2798d085326317590e0fb42346fa9
<ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/squid23-2.3.STABLE4-60.src.rpm>
1332572acea60f0c6ca1593fcd245771

SuSE-7.0
<ftp://ftp.suse.com/pub/suse/sparc/update/7.0/n1/squid2-2.2.STABLE5-207.sparc.rpm>
1958de7d7f90d27c87e1dc1b21879736
<ftp://ftp.suse.com/pub/suse/sparc/update/7.0/n1/squid23-2.3.STABLE4-60.sparc.rpm>
a54038090e73a78a6f3cc77e1162e4a2
source rpm:
<ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/squid2-2.2.STABLE5-207.src.rpm>
3a398a096c2657059a093dcf58222e35
<ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/squid23-2.3.STABLE4-60.src.rpm>
7e1483d0b41f48ef3aa00e058b0e761f

AXP Alpha Platform:

SuSE-7.1
<ftp://ftp.suse.com/pub/suse/axp/update/7.1/n2/squid2-2.2.STABLE5-225.alpha.rpm>
7f39d3a0ff45f231713c6ba5afbdcc15
<ftp://ftp.suse.com/pub/suse/axp/update/7.1/n2/squid23-2.3.STABLE4-74.alpha.rpm>
5fe79d7f9c2da83222978f75e3387e49
source rpm:
<ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/squid2-2.2.STABLE5-225.src.rpm>
705a5b370267d8d873f1e3504bcc55ed
<ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/squid23-2.3.STABLE4-74.src.rpm>
e42367f3ad73250ec9feda4687b406d2

SuSE-7.0
<ftp://ftp.suse.com/pub/suse/axp/update/7.0/n1/squid2-2.2.STABLE5-226.alpha.rpm>
b0977f9c5ed0750b12308d072da1b285
<ftp://ftp.suse.com/pub/suse/axp/update/7.0/n1/squid23-2.3.STABLE4-74.alpha.rpm>
3906c0d918c745582a25fb1c480d3aef
source rpm:
<ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/squid2-2.2.STABLE5-226.src.rpm>
2afd7d60f6da4feb346ddfefc8bec34a
<ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/squid23-2.3.STABLE4-74.src.rpm>
cab334bf697df713d847ae8c569b7b30

SuSE-6.4
<ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/squid2-2.2.STABLE5-227.alpha.rpm>
1bc4ac5b27e3cfd62766d0258f91090a
<ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/squid23-2.3.STABLE4-75.alpha.rpm>
b809b2523881fbea1f77f3f5b96879c5
source rpm:
<ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/squid2-2.2.STABLE5-227.src.rpm>
7d6d942bc8b4208fe610f714868009d8
<ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/squid23-2.3.STABLE4-75.src.rpm>
515cb7434886540fae57c5ac56acbb42

PPC Power PC Platform:

SuSE-7.3
<ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n2/squid-2.3.STABLE4-71.ppc.rpm>
2a14453696ced035fb21d272f7619a5c
<ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n2/squid-beta-2.4.STABLE2-59.ppc.rpm>
ceda7a8a291d8b3d01127b4e0fb1ccb2
source rpm:
<ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/squid-2.3.STABLE4-71.src.rpm>
5427dd36485bdfb0d67060c9bad62127
<ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/squid-beta-2.4.STABLE2-59.src.rpm>
a572e3f76e68a3577e6a4efe0ec016ae

SuSE-7.1
<ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n2/squid2-2.2.STABLE5-200.ppc.rpm>
a8e274378dc15aab4ca01760c112b770
<ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n2/squid23-2.3.STABLE4-68.ppc.rpm>
133528338cb5253a12132e3e9ec2ee2e
source rpm:
<ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/squid2-2.2.STABLE5-200.src.rpm>
515cb7e5f04cd5980463a8b3f248e08e
<ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/squid23-2.3.STABLE4-68.src.rpm>
b923a7141e0fb4b1f3b6e6d0185cb4aa

SuSE-7.0
<ftp://ftp.suse.com/pub/suse/ppc/update/7.0/n1/squid2-2.2.STABLE5-200.ppc.rpm>
2b301c87d0d2e1546cb6a63427dc9cea
<ftp://ftp.suse.com/pub/suse/ppc/update/7.0/n1/squid23-2.3.STABLE4-68.ppc.rpm>
20eef813e618d3ac3e8e24abcaca894c
source rpm:
<ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/squid2-2.2.STABLE5-200.src.rpm>
7d41eaa9985c49cec7afb76dd29355e7
<ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/squid23-2.3.STABLE4-68.src.rpm>
11bb4cb51a8abf8ebe994dc08f8a7c24

SuSE-6.4
<ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/squid2-2.2.STABLE5-200.ppc.rpm>
e8020a0a7153208e58f202b0655f1ce5
<ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/squid23-2.3.STABLE4-68.ppc.rpm>
efd648b5575b6fce60cd7403fbb15d5a
source rpm:
<ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/squid2-2.2.STABLE5-200.src.rpm>
521d058bc1513947642f74a121e4e98b
<ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/squid23-2.3.STABLE4-68.src.rpm>
8c9bf3882aa81c7de4b2b920f31e4f69


2) Pending vulnerabilities in SuSE Distributions and Workarounds:

- ucd-snmpd
The UCD snmpd contains various security releated bugs.
We are currently reviewing the code and available fixes to ensure
they all get fixed. Patches will be available as soon as possible.
It is strongly recommended to filter SNMP (TCP and UDP packets
with destination of port 161) traffic.

- hanterm/wmtv
The recently reported vulnerabilities in hanterm and wmtv do not
affect SuSE installations because they are not installed setuid
or setgid.

- cipe
We are about to prepare kernel update packages that fix a DoS
problem in the kernel modules for the cipe encrypted tunneling software.


3) standard appendix: authenticity verification, additional information

- Package authenticity verification:

SuSE update packages are available on many mirror ftp servers all over
the world. While this service is being considered valuable and important
to the free and open source software community, many users wish to be
sure about the origin of the package and its content before installing
the package. There are two verification methods that can be used
independently from each other to prove the authenticity of a downloaded
file or rpm package:
1) md5sums as provided in the (cryptographically signed) announcement.
2) using the internal gpg signatures of the rpm package.

1) execute the command
md5sum <name-of-the-file.rpm>
after you downloaded the file from a SuSE ftp server or its mirrors.
Then, compare the resulting md5sum with the one that is listed in the
announcement. Since the announcement containing the checksums is
cryptographically signed (usually using the key security@suse.de),
the checksums show proof of the authenticity of the package.
We disrecommend to subscribe to security lists which cause the
email message containing the announcement to be modified so that
the signature does not match after transport through the mailing
list software.
Downsides: You must be able to verify the authenticity of the
announcement in the first place. If RPM packages are being rebuilt
and a new version of a package is published on the ftp server, all
md5 sums for the files are useless.

2) rpm package signatures provide an easy way to verify the authenticity
of an rpm package. Use the command
rpm -v --checksig <file.rpm>
to verify the signature of the package, where <file.rpm> is the
filename of the rpm package that you have downloaded. Of course,
package authenticity verification can only target an uninstalled rpm
package file.
Prerequisites:
a) gpg is installed
b) The package is signed using a certain key. The public part of this
key must be installed by the gpg program in the directory
~/.gnupg/ under the user's home directory who performs the
signature verification (usually root). You can import the key
that is used by SuSE in rpm packages for SuSE Linux by saving
this announcement to a file ("announcement.txt") and
running the command (do "su -" to be root):
gpg --batch; gpg < announcement.txt | gpg --import
SuSE Linux distributions version 7.1 and thereafter install the
key "build@suse.de" upon installation or upgrade, provided that
the package gpg is installed. The file containing the public key
is placed at the toplevel directory of the first CD (pubring.gpg)
and at <ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de> .

- SuSE runs two security mailing lists to which any interested party may
subscribe:

suse-security@suse.com
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe@suse.com>.

suse-security-announce@suse.com
- SuSE's announce-only mailing list.
Only SuSE's security annoucements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe@suse.com>.

For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info@suse.com> or
<suse-security-faq@suse.com> respectively.

=====================================================================
SuSE's security contact is <security@suse.com> or <security@suse.de>.
The <security@suse.de> public key is listed below.
=====================================================================


The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way. In particular,
it is desired that the cleartext signature shows proof of the
authenticity of the text.
SuSE GmbH makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.

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Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Trustix __ Affected

Updated: March 04, 2002

Status

Affected

Vendor Statement

See, &lt;http://www.trustix.net/errata/misc/2002/TSL-2002-0031-squid.asc.txt&gt;

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

Group | Score | Vector
---|---|---
Base | |
Temporal | |
Environmental | |

References

  • <http://www.securityfocus.com/bid/4148>
  • <http://www.squid-cache.org/>
  • <http://archives.neohapsis.com/archives/bugtraq/2002-02/0251.html>

Acknowledgements

Our thanks to Jouko Pynnönen of Online Solutions Ltd, who discovered and reported on this vulnerability.

This document was written by Jason Rafail and is based on the advisory by Jouko Pynnönen.

Other Information

CVE IDs: | CVE-2002-0068
---|---
Severity Metric: | 15.96
Date Public: | 2002-02-21
Date First Published: | 2002-03-04
Date Last Updated: | 2002-03-06 15:20 UTC
Document Revision: | 10