6771711 2001-07-19 16:40 -0400 /115 rader/ <bugzilla@redhat.com>
Sänt av: joel@lysator.liu.se
Importerad: 2001-07-20 01:50 av Brevbäraren
Extern mottagare: redhat-watch-list@redhat.com
Extern kopiemottagare: bugtraq@securityfocus.com
Extern kopiemottagare: linux-security@redhat.com
Mottagare: Bugtraq (import) <18152>
Mottagare: Red Hat Announce (import) <1912>
Sänt: 2001-07-25 18:20
Ärende: [RHSA-2001:097-04] New squid packages for Red Hat Linux 7.0
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From: bugzilla@redhat.com
To: redhat-watch-list@redhat.com
Cc: bugtraq@securityfocus.com, linux-security@redhat.com
Message-ID: <200107192040.f6JKek628164@porkchop.redhat.com>
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Red Hat, Inc. Red Hat Security Advisory
Synopsis: New squid packages for Red Hat Linux 7.0
Advisory ID: RHSA-2001:097-04
Issue date: 2001-07-12
Updated on: 2001-07-19
Product: Red Hat Linux
Keywords: squid http_accel_host http_accel_with_proxy
Cross references:
Obsoletes:
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1. Topic:
New squid packages are available for Red Hat Linux 7.0 that fix a
possible security problem with Squid's HTTP accelerator feature. If
Squid was configured in accelerator-only mode, it was possible for
remote users to portscan machines through the Squid proxy,
potentially allowing for access to machines not otherwise available.
It is recommended that users who use Squid in accelerator-only mode
update to the fixed packages. Note that Red Hat Linux 7.1 is not
affected by this vulnerability, nor are releases prior to Red Hat
Linux 7.0.
2. Relevant releases/architectures:
Red Hat Linux 7.0 - alpha, i386
3. Problem description:
If Squid is configured with 'httpd_accel_host <some hostname>' and
'httpd_accel_with_proxy off', access control lists will not be
enabled. This could allow any remote user to use the squid server to
access other sites, potentially ones that they could not reach
otherwise.
Thanks go to Paul Nasrat <pnasrat@uk.now.com> for notifying us of this
vulnerability and to the Squid team for providing the patch.
4. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade. Only
those RPMs which are currently installed will be updated. Those RPMs
which are not installed but included in the list will not be updated.
Note that you can also use wildcards (*.rpm) if your current
directory *only* contains the desired RPMs.
Please note that this update is also available via Red Hat Network.
Many people find this an easier way to apply updates. To use Red Hat
Network, launch the Red Hat Update Agent with the following command:
up2date
This will start an interactive process that will result in the
appropriate RPMs being upgraded on your system.
5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):
48026 - Squid passes acl's in httpd_accel mode in squid-2.3.STABLE4
6. RPMs required:
Red Hat Linux 7.0:
SRPMS:
ftp://updates.redhat.com/7.0/en/os/SRPMS/squid-2.3.STABLE4-9.7.src.rpm
alpha:
ftp://updates.redhat.com/7.0/en/os/alpha/squid-2.3.STABLE4-9.7.alpha.rpm
i386:
ftp://updates.redhat.com/7.0/en/os/i386/squid-2.3.STABLE4-9.7.i386.rpm
7. Verification:
MD5 sum Package Name
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a72ff722df226623a845d667959b552b 7.0/en/os/SRPMS/squid-2.3.STABLE4-9.7.src.rpm
433b3aba62f07f7d151b95f75339ade7 7.0/en/os/alpha/squid-2.3.STABLE4-9.7.alpha.rpm
adad3217cd16346eb5dcfa13a46d6289 7.0/en/os/i386/squid-2.3.STABLE4-9.7.i386.rpm
These packages are GPG signed by Red Hat, Inc. for security. Our key
is available at:
http://www.redhat.com/corp/contact.html
You can verify each package with the following command:
rpm --checksig <filename>
If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
rpm --checksig --nogpg <filename>
8. References:
Copyright(c) 2000, 2001 Red Hat, Inc.
(6771711) / <bugzilla@redhat.com>/--------(Ombruten)