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Advisories, February 21, 2005

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February 22, 2005

Debian GNU/Linux

Debian Security Advisory DSA 674-3 security@debian.org
http://www.debian.org/security/
Martin Schulze
February 21st, 2005 http://www.debian.org/security/faq

Package : mailman
Vulnerability : cross-site scripting, directory traversal
Problem-Type : remote
Debian-specific: no
CVE ID : CAN-2004-1177 CAN-2005-0202

Due to an incompatibility between Python 1.5 and 2.1 the last
mailman update did not run with Python 1.5 anymore. This problem is
corrected with this update. This advisory only updates the packages
updated with DSA 674-2. The version in unstable is not affected
since it is not supposed to work with Python 1.5 anymore. For
completeness below is the original advisory text:

Two security related problems have been discovered in mailman,
web-based GNU mailing list manager. The Common Vulnerabilities and
Exposures project identifies the following problems:

CAN-2004-1177

Florian Weimer discovered a cross-site scripting vulnerability
in mailman’s automatically generated error messages. An attacker
could craft an URL containing JavaScript (or other content embedded
into HTML) which triggered a mailman error page that would include
the malicious code verbatim.

CAN-2005-0202

Several listmasters have noticed unauthorised access to archives
of private lists and the list configuration itself, including the
users passwords. Administrators are advised to check the webserver
logfiles for requests that contain “/…../” and the path to the
archives or cofiguration. This does only seem to affect
installations running on web servers that do not strip slashes,
such as Apache 1.3.

For the stable distribution (woody) these problems have been
fixed in version 2.0.11-1woody11.

We recommend that you upgrade your mailman 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.

Debian GNU/Linux 3.0 alias woody

Source archives:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11.dsc

Size/MD5 checksum: 597 2bd1ff64a1bdaa6655656c5ec2b10db8

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11.diff.gz

Size/MD5 checksum: 33161 6b4be5023a62ba488398a174bd9139fe

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11.orig.tar.gz

Size/MD5 checksum: 415129 915264cb1ac8d7b78ea9eff3ba38ee04

Alpha architecture:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11_alpha.deb

Size/MD5 checksum: 461712 8ccd3f0c5cf0791f885f5e0850e2d37c

ARM architecture:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11_arm.deb

Size/MD5 checksum: 459286 72cef07f59aa7cd0f0a77c26a3b7dc77

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11_i386.deb

Size/MD5 checksum: 452438 3b7179c3d729f392d129d185cd3641db

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11_ia64.deb

Size/MD5 checksum: 462256 34338a3fab74b3af221e89cffb0d7eb9

HP Precision architecture:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11_hppa.deb

Size/MD5 checksum: 459964 c772ec5f0b1274f7460d4336f7ec7dee

Motorola 680×0 architecture:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11_m68k.deb

Size/MD5 checksum: 459408 a6413a53de20e77e50b8403b18dadfa8

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11_mips.deb

Size/MD5 checksum: 459984 ca6ac0ebd589bb1cf3b716ab3f6df8d2

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11_mipsel.deb

Size/MD5 checksum: 460088 b3b5426e9a88dd7ab43cf3160ef1a3e9

PowerPC architecture:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11_powerpc.deb

Size/MD5 checksum: 460248 db24ceb03ca9f678d1ec89eacc74694a

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11_s390.deb

Size/MD5 checksum: 460300 f51f741f3e1dfe80981e59e4fdc9b238

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/m/mailman/mailman_2.0.11-1woody11_sparc.deb

Size/MD5 checksum: 465056 e140e8b13fbf54ecb25d9f4d50d9da44

These files will probably be moved into the stable distribution
on its next update.

For apt-get: deb http://security.debian.org/
stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security
dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org

Package info: `apt-cache show <pkg>’ and http://packages.debian.org/<pkg>

Gentoo Linux

Gentoo Linux Security Advisory GLSA 200502-28

http://security.gentoo.org/

Severity: Normal
Title: PuTTY: Remote code execution
Date: February 21, 2005
Bugs: #82753
ID: 200502-28

Synopsis

PuTTY was found to contain vulnerabilities that can allow a
malicious SFTP server to execute arbitrary code on unsuspecting
PSCP and PSFTP clients.

Background

PuTTY is a popular SSH client, PSCP is a secure copy
implementation, and PSFTP is a SSH File Transfer Protocol
client.

Affected packages

     Package         /  Vulnerable  /                       Unaffected

  1  net-misc/putty       < 0.57                               >= 0.57

Description

Two vulnerabilities have been discovered in the PSCP and PSFTP
clients, which can be triggered by the SFTP server itself. These
issues are caused by the improper handling of the FXP_READDIR
response, along with other string fields.

Impact

An attacker can setup a malicious SFTP server that would send
these malformed responses to a client, potentially allowing the
execution of arbitrary code on their system.

Workaround

There is no known workaround at this time.

Resolution

All PuTTY users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-misc/putty-0.57"

References

[ 1 ] PuTTY vulnerability vuln-sftp-readdir

http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-sftp-readdir.html

[ 2 ] PuTTY vulnerability vuln-sftp-string

http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-sftp-string.html

[ 3 ] CAN-2005-0467

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0467

[ 4 ] iDEFENSE Advisory

http://www.idefense.com/application/poi/display?id=201&type=vulnerabilities

Availability

This GLSA and any updates to it are available for viewing at the
Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200502-28.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or
alternatively, you may file a bug at http://bugs.gentoo.org.

License

The contents of this document are licensed under the Creative
Commons – Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.0

Ubuntu Linux

Ubuntu Security Notice USN-84-1 February 21, 2005
squid vulnerabilities
CAN-2005-0194, CAN-2005-0446

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)

The following packages are affected:

squid

The problem can be corrected by upgrading the affected package
to version 2.5.5-6ubuntu0.5. In general, a standard system upgrade
is sufficient to effect the necessary changes.

Details follow:

When parsing the configuration file, squid interpreted empty
Access Control Lists (ACLs) without defined authentication schemes
in a non-obvious way. This could allow remote attackers to bypass
intended ACLs. (CAN-2005-0194)

A remote Denial of Service vulnerability was discovered in the
domain name resolution code. A faulty or malicious DNS server could
stop the Squid server immediately by sending a malformed IP
address. (CAN-2005-0446)

Source archives:

http://security.ubuntu.com/ubuntu/pool/main/s/squid/squid_2.5.5-6ubuntu0.5.diff.gz

Size/MD5: 273103 b227505fff84a15f636d1a40ef894a59

http://security.ubuntu.com/ubuntu/pool/main/s/squid/squid_2.5.5-6ubuntu0.5.dsc

Size/MD5: 652 03dda2b1794bee143c7bb2c907177dec

http://security.ubuntu.com/ubuntu/pool/main/s/squid/squid_2.5.5.orig.tar.gz

Size/MD5: 1363967 6c7f3175b5fa04ab5ee68ce752e7b500

Architecture independent packages:

http://security.ubuntu.com/ubuntu/pool/main/s/squid/squid-common_2.5.5-6ubuntu0.5_all.deb

Size/MD5: 190542 18ac376117476528d04ecf34c39605c5

amd64 architecture (Athlon64, Opteron, EM64T Xeon)

http://security.ubuntu.com/ubuntu/pool/universe/s/squid/squid-cgi_2.5.5-6ubuntu0.5_amd64.deb

Size/MD5: 89972 6c0d1ca2955e65c617a0ffb9835fb7d0

http://security.ubuntu.com/ubuntu/pool/main/s/squid/squid_2.5.5-6ubuntu0.5_amd64.deb

Size/MD5: 812832 c4ae1fa8c10241c975be5a5ae713d259

http://security.ubuntu.com/ubuntu/pool/universe/s/squid/squidclient_2.5.5-6ubuntu0.5_amd64.deb