Eduard Bloch discovered a bug in apt-cacher, a caching system for
Debian package and source files, that could allow remote attackers to
execute arbitrary commands on the caching host as user www-data.
The old stable distribution (woody) does not contain this package.
For the stable distribution (sarge) this problem has been fixed in
version 0.9.4sarge1.
For the unstable distribution (sid) this problem has been fixed in
version 0.9.10.
We recommend that you upgrade your apt-cacher package.
Upgrade Instructions
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
If you are using the apt-get package manager, use the line for
sources.list as given below:
apt-get update
will update the internal database
apt-get upgrade
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
Product : Fedora Core 3
Name : ethereal
Version : 0.10.12
Release : 1.FC3.2
Summary : Network traffic analyzer.
Description :
Ethereal is a network traffic analyzer for Unix-ish operating systems.
This package lays base for libpcap, a packet capture and filtering
library, contains command-line utilities, and contains plugins and
documentation for ethereal. A graphical user interface is packaged
separately to GTK+ package.
Update Information:
To reduce the risk of future vulnerabilities in Ethereal,
the ethereal and tethereal programs in this update have been
compiled as Position Independant Executables (PIE).
Wed Aug 3 2005 Jindrich Novy <jnovy@redhat.com> 0.10.12-1.FC3.2
compile ethereal and ethereal-gnome as PIE (#160780)
Product : Fedora Core 4
Name : ethereal
Version : 0.10.12
Release : 1.FC4.2
Summary : Network traffic analyzer.
Description :
Ethereal is a network traffic analyzer for Unix-ish operating systems.
This package lays base for libpcap, a packet capture and filtering
library, contains command-line utilities, and contains plugins and
documentation for ethereal. A graphical user interface is packaged
separately to GTK+ package.
Update Information:
To reduce the risk of future vulnerabilities in Ethereal, the
ethereal and tethereal programs in this update have been
compiled as Position Independant Executables (PIE).
Wed Aug 3 2005 Jindrich Novy <jnovy@redhat.com> 0.10.12-1.FC4.2
compile ethereal and ethereal-gnome with PIE (#160780)
This update can also be installed with the Update Agent; you can
launch the Update Agent with the 'up2date' command.
Mandriva Linux
Mandriva Linux Security Update Advisory
Package name: mozilla
Advisory ID: MDKSA-2005:128
Date: August 2nd, 2005
Affected versions: 10.1, Corporate 3.0
Problem Description:
A number of vulnerabilities were reported and fixed in Mozilla 1.7.9.
The following vulnerabilities have been backported and patched for
this update:
In several places the browser UI did not correctly distinguish between
true user events, such as mouse clicks or keystrokes, and synthetic
events genenerated by web content. The problems ranged from minor
annoyances like switching tabs or entering full-screen mode, to a
variant on MFSA 2005-34 Synthetic events are now prevented from
reaching the browser UI entirely rather than depend on each potentially
spoofed function to protect itself from untrusted events
(MFSA 2005-45).
Scripts in XBL controls from web content continued to be run even when
Javascript was disabled. By itself this causes no harm, but it could be
combined with most script-based exploits to attack people running
vulnerable versions who thought disabling javascript would protect
them. In the Thunderbird and Mozilla Suite mail clients Javascript is
disabled by default for protection against denial-of-service attacks
and worms; this vulnerability could be used to bypass that protection
(MFSA 2005-46).
The InstallTrigger.install() method for launching an install accepts a
callback function that will be called with the final success or error
status. By forcing a page navigation immediately after calling the
install method this callback function can end up running in the context
of the new page selected by the attacker. This is true even if the user
cancels the unwanted install dialog: cancel is an error status. This
callback script can steal data from the new page such as cookies or
passwords, or perform actions on the user's behalf such as make a
purchase if the user is already logged into the target site. In
Firefox the default settings allow only http://addons.mozilla.org to
bring up this install dialog. This could only be exploited if users
have added questionable sites to the install whitelist, and if a
malicious site can convince you to install from their site that's a
much more powerful attack vector. In the Mozilla Suite the whitelist
feature is turned off by default, any site can prompt the user to
install software and exploit this vulnerability. The browser has been
fixed to clear any pending callback function when switching to a new
site (MFSA 2005-48).
When InstallVersion.compareTo() is passed an object rather than a
string it assumed the object was another InstallVersion without
verifying it. When passed a different kind of object the browser would
generally crash with an access violation. shutdown has demonstrated
that different javascript objects can be passed on some OS versions to
get control over the instruction pointer. We assume this could be
developed further to run arbitrary machine code if the attacker can get
exploit code loaded at a predictable address (MFSA 2005-50).
The original frame-injection spoofing bug was fixed in the Mozilla
Suite 1.7 and Firefox 0.9 releases. This protection was accidentally
bypassed by one of the fixes in the Firefox 1.0.3 and Mozilla Suite
1.7.7 releases (MFSA 2005-51).
A child frame can call top.focus() even if the framing page comes from
a different origin and has overridden the focus() routine. The call is
made in the context of the child frame. The attacker would look for a
target site with a framed page that makes this call but doesn't verify
that its parent comes from the same site. The attacker could steal
cookies and passwords from the framed page, or take actions on behalf
of a signed-in user. This attack would work only against sites that use
frames in this manner (MFSA 2005-52).
Alerts and prompts created by scripts in web pages are presented with
the generic title [JavaScript Application] which sometimes makes it
difficult to know which site created them. A malicious page could
attempt to cause a prompt to appear in front of a trusted site in an
attempt to extract information such as passwords from the user. In the
fixed version these prompts will contain the hostname from the page
which created it (MFSA 2005-54).
Parts of the browser UI relied too much on DOM node names without
taking different namespaces into account and verifying that nodes
really were of the expected type. An XHTML document could be used to
create fake <IMG> elements, for example, with content-defined
properties that the browser would access as if they were the trusted
built-in properties of the expected HTML elements. The severity of the
vulnerability would depend on what the attacker could convince the
victim to do, but could result in executing user-supplied script with
elevated "chrome" privileges. This could be used to install malicious
software on the victim's machine (MFSA 2005-55).
Improper cloning of base objects allowed web content scripts to walk up
the prototype chain to get to a privileged object. This could be used
to execute code with enhanced privileges (MFSA 2005-56).
The updated packages have been patched to address these issue. This
update also brings the mozilla shipped in Mandriva Linux 10.1 to
version 1.7.8 to ease maintenance. As a result, new galeon and
epiphany packages are also available for 10.1, and community contribs
packages that are built against mozilla have been rebuilt and are
also available via contribs.
Marc Stern reported an off-by-one overflow in the mod_ssl CRL
verification callback which can only be exploited if the Apache server
is configured to use a malicious certificate revocation list
(CAN-2005-1268).
Watchfire reported a flaw that occured when using the Apache server as
a HTTP proxy. A remote attacker could send an HTTP request with both a
"Transfer-Encoding: chunked" header and a "Content-Length" header which
would cause Apache to incorrectly handle and forward the body of the
request in a way that the receiving server processed it as a separate
HTTP request. This could be used to allow the bypass of web application
firewall protection or lead to cross-site scripting (XSS) attacks
(CAN-2005-2088).
The updated packages have been patched to prevent these issues.
If you want to report vulnerabilities, please contact
security_(at)_mandriva.com
Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
Mandriva Linux Security Update Advisory
Package name: apache
Advisory ID: MDKSA-2005:130
Date: August 3rd, 2005
Affected versions: 10.0, 10.1, 10.2, Corporate 3.0,
Corporate Server 2.1
Problem Description:
Watchfire reported a flaw that occured when using the Apache server as
a HTTP proxy. A remote attacker could send an HTTP request with both a
"Transfer-Encoding: chunked" header and a "Content-Length" header which
would cause Apache to incorrectly handle and forward the body of the
request in a way that the receiving server processed it as a separate
HTTP request. This could be used to allow the bypass of web application
firewall protection or lead to cross-site scripting (XSS) attacks
(CAN-2005-2088).
The updated packages have been patched to prevent these issues.
If you want to report vulnerabilities, please contact
security_(at)_mandriva.com
Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
Red Hat Linux
Red Hat Security Advisory
Synopsis: Low: dump security update
Advisory ID: RHSA-2005:583-01
Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-583.html
Issue date: 2005-08-03
Updated on: 2005-08-03
Product: Red Hat Enterprise Linux
CVE Names: CAN-2002-1914
1. Summary:
Updated dump packages that address two security issues are now available
for Red Hat Enterprise Linux 2.1.
This update has been rated as having low security impact by the Red Hat
Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386
3. Problem description:
Dump examines files in a file system, determines which ones need to be
backed up, and copies those files to a specified disk, tape, or other
storage medium.
A flaw was found with dump file locking. A malicious local user could
manipulate the file lock in such a way as to prevent dump from running.
The Common Vulnerabilities and Exposures project (cve.mitre.org/) assigned
the name CAN-2002-1914 to this issue.
Users of dump should upgrade to these erratum packages, which contain a
patch to resolve this issue.
4. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
This update is available via Red Hat Network. 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.
Synopsis: Moderate: SquirrelMail security update
Advisory ID: RHSA-2005:595-01
Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-595.html
Issue date: 2005-08-03
Updated on: 2005-08-03
Product: Red Hat Enterprise Linux
CVE Names: CAN-2005-2095 CAN-2005-1769
1. Summary:
An updated squirrelmail package that fixes two security issues 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 - noarch
Red Hat Desktop version 3 - noarch
Red Hat Enterprise Linux ES version 3 - noarch
Red Hat Enterprise Linux WS version 3 - noarch
Red Hat Enterprise Linux AS version 4 - noarch
Red Hat Enterprise Linux Desktop version 4 - noarch
Red Hat Enterprise Linux ES version 4 - noarch
Red Hat Enterprise Linux WS version 4 - noarch
3. Problem description:
SquirrelMail is a standards-based webmail package written in PHP4.
A bug was found in the way SquirrelMail handled the $_POST variable. A
user's SquirrelMail preferences could be read or modified if the user is
tricked into visiting a malicious URL. The Common Vulnerabilities and
Exposures project assigned the name CAN-2005-2095 to this issue.
Several cross-site scripting bugs were discovered in SquirrelMail. An
attacker could inject arbitrary Javascript or HTML content into
SquirrelMail pages by tricking a user into visiting a carefully crafted
URL, or by sending them a carefully constructed HTML email message.
(CAN-2005-1769)
All users of SquirrelMail should upgrade to this updated package, which
contains backported patches that resolve these issues.
4. Solution:
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:
up2date
For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:
