Linux Advisory Watch - February 21st 2003

[InfoSec News <isn () c4i org>]

+----------------------------------------------------------------+
|  LinuxSecurity.com                        Linux Advisory Watch |
|  February 21st, 2002                       Volume 4, Number 8a |
+----------------------------------------------------------------+

  Editors:     Dave Wreski                Benjamin Thomas
               dave () linuxsecurity com     ben () linuxsecurity com

Linux Advisory Watch is a comprehensive newsletter that outlines the
security vulnerabilitiaes that have been announced throughout the week.
It includes pointers to updated packages and descriptions of each
vulnerability.

This week, advisories were released for mod_dav, w3m, cups, php, mysql,
openssl, mailman, syslinux, nethack, bitchx, util-linux, apcupdb, pam,
shadow-utils, and imp.  The distributors include Caldera, Debian, Guardian
Digital's EnGarde Secure Linux, Gentoo, Mandrake, Red Hat, and SuSE.

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Review: Mastering Network Security, Second Edition - The introduction
states that this book is aimed at systems administrators who are not
security experts, but have some responsibility for ensuring the integrity
of their systems. That would seem to cover most sysadmins.

http://www.linuxsecurity.com/feature_stories/feature_story-137.html


+---------------------------------+
|  Package:  mod_dav              | ----------------------------//
|  Date: 02-17-2003               |
+---------------------------------+

Description:
The Apache mod_dav module contains a format string vulnerability in the
"ap_log_rerror()" function.

Vendor Alerts:

 Caldera:
  mod_dav-1.0.2_1.3.6-3.i386.rpm
  bcb45e6cffe4b274dd2363b6880a9164

  ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/
  Server/CSSA-2003-007.0/RPMS


  Caldera Vendor Advisory:
  http://www.linuxsecurity.com/advisories/caldera_advisory-2859.html



+---------------------------------+
|  Package:  w3m                  | ----------------------------//
|  Date: 02-17-2003               |
+---------------------------------+

Description:
The w3m browser does not properly escape HTML tags in frame contents and
img alt attributes.  A malicious HTML frame or img alt attribute may
deceive a user to send his local cookies which are used for configuration.
The information is not leaked automatically, though.


Vendor Alerts:

 Debian:

  http://security.debian.org/pool/updates/
  main/w/w3m/w3m_0.3-2.4_i386.deb
  Size/MD5 checksum:   536546 403d4d66e4a35b72fde1ca2648477eee

  http://security.debian.org/pool/updates/
  main/w/w3m/w3m-img_0.3-2.4_i386.deb
  Size/MD5 checksum:    44696 2dea9365153597340338fa6cb3d26a73

  http://security.debian.org/pool/updates/
  main/w/w3m-ssl/w3m-ssl_0.3-2.4_i386.deb
  Size/MD5 checksum:   378256 f678a241934a5cd884dc08a19602670a


  Debian Vendor Advisory:
  http://www.linuxsecurity.com/advisories/debian_advisory-2855.html

  Gentoo Vendor Advisory:
  http://www.linuxsecurity.com/advisories/gentoo_advisory-2858.html




+---------------------------------+
|  Package:  cups                 | ----------------------------//
|  Date: 02-20-2003               |
+---------------------------------+

Description:
This update corrects a library dependency for the libcupsys2 package which
sneaked in with the last security update to CUPS for the stable
distribution.

Vendor Alerts:

 Debian:
  PLEASE SEE VENDOR ADVISORY FOR UPDATE

  Debian Vendor Advisory:
  http://www.linuxsecurity.com/advisories/debian_advisory-2860.html




+---------------------------------+
|  Package:  php                  | ----------------------------//
|  Date: 02-19-2003               |
+---------------------------------+

Description:
A heap-based buffer overflow vulnerability has been found in the
wordwrap() function of PHP.  This vulnerability may cause a denial of
service attack or arbitrary code execution if wordwrap() is used on
untrusted input.

Vendor Alerts:

 EnGarde:
  ftp://ftp.engardelinux.org/pub/engarde/stable/updates/

  i386/mod_php-4.2.3-1.0.22.i386.rpm
  MD5 Sum: 4fb941c9d2d96b448df72e158b1fdb92

  i386/php-4.2.3-1.0.22.i386.rpm
  MD5 Sum: 54b33db7d2bd6203392f7aec91c20aaf

  i686/mod_php-4.2.3-1.0.22.i686.rpm
  MD5 Sum: 722a305a2848f1840c92a61c204d932d

  i686/php-4.2.3-1.0.22.i686.rpm
  MD5 Sum: aec6f8b625f03b6fff8fa3ebd544dd67

  EnGarde Vendor Advisory:
  http://www.linuxsecurity.com/advisories/engarde_advisory-2870.html


  Gentoo Vendor Advisory:
  http://www.linuxsecurity.com/advisories/gentoo_advisory-2867.html

  Mandrake Vendor Advisory:
  http://www.linuxsecurity.com/advisories/mandrake_advisory-2877.html


  SuSE Vendor Advisory:
  http://www.linuxsecurity.com/advisories/suse_advisory-2863.html




+---------------------------------+
|  Package:  mysql                | ----------------------------//
|  Date: 02-19-2003               |
+---------------------------------+

Description:
This update fixes a double free() bug in the MySQL daemon that could allow
an attacker, with a specially crafted MySQL client, to crash the server.
The attacker also requires a valid user account.

Vendor Alerts:

 EnGarde:
  ftp://ftp.engardelinux.org/pub/engarde/stable/updates/

  i386/MySQL-3.23.36-1.0.22.i386.rpm
  MD5 Sum: 5326e9561a5fa3a4fe141f85eaf952cc

  i386/MySQL-client-3.23.36-1.0.22.i386.rpm
  MD5 Sum: d85c85c2e0aaddab775e616208ce81c6

  i386/MySQL-shared-3.23.36-1.0.22.i386.rpm
  MD5 Sum: 0226c8ee2d6d196130f730ce3fed3568

  i686/MySQL-3.23.36-1.0.22.i686.rpm
  MD5 Sum: 8346d78f2a51c24372e0561be75896ce

  i686/MySQL-client-3.23.36-1.0.22.i686.rpm
  MD5 Sum: 4a955ebf6e116a5df38653bd9f27d6cd

  i686/MySQL-shared-3.23.36-1.0.22.i686.rpm
  MD5 Sum: 2a5a37357c64bb067be740f95aa1b93a


  EnGarde Vendor Advisory:
  http://www.linuxsecurity.com/advisories/engarde_advisory-2873.html




+---------------------------------+
|  Package:  openssl              | ----------------------------//
|  Date: 02-20-2003               |
+---------------------------------+

Description:
In an upcoming paper, Brice Canvel (EPFL), Alain Hiltgen (UBS), Serge
Vaudenay (EPFL), and Martin Vuagnoux (EPFL, Ilion) describe and
demonstrate a timing-based attack on CBC cipher suites used in SSL and
TLS. OpenSSL has been found to vulnerable to this attack.  This update
fixes these vulnerabilities.

Vendor Alerts:

 EnGarde:
  ftp://ftp.engardelinux.org/pub/engarde/stable/updates/

  i386/openssl-0.9.6-1.0.18.i386.rpm
  MD5 Sum: df7657e406732b3abc7b7b3414bf07b2

  i386/openssl-misc-0.9.6-1.0.18.i386.rpm
  MD5 Sum: d251465a15f7167dee9a0929af23edd9

  i686/openssl-0.9.6-1.0.18.i686.rpm
  MD5 Sum: 707774a9ad3d06e6596b7389745ee89e

  i686/openssl-misc-0.9.6-1.0.18.i686.rpm
  MD5 Sum: e09d2a7e893f12247475a8821abee3da


  EnGarde Vendor Advisory:
  http://www.linuxsecurity.com/advisories/engarde_advisory-2874.html


  Gentoo Vendor Advisory:
  http://www.linuxsecurity.com/advisories/gentoo_advisory-2875.html




+---------------------------------+
|  Package:  mailman              | ----------------------------//
|  Date: 02-17-2003               |
+---------------------------------+

Description:
The email variable and the default error page in mailmain 2.1 contains
cross site scripting vulnerabilities.

Vendor Alerts:

 Gentoo:
  PLEASE SEE VENDOR ADVISORY FOR UPDATE

  Gentoo Vendor Advisory:
  http://www.linuxsecurity.com/advisories/gentoo_advisory-2856.html



+---------------------------------+
|  Package:  syslinux             | ----------------------------//
|  Date: 02-17-2003               |
+---------------------------------+

Description:
Security flaws have been found in the SYSLINUX installer when running
setuid root. Rewrite the SYSLINUX installer so it uses mtools instead. It
therefore now requires mtools (specifically mcopy and mattrib) to exist on
your system, but it will not require root privileges and SHOULD NOT be
setuid.

Vendor Alerts:

 Gentoo:
  PLEASE SEE VENDOR ADVISORY FOR UPDATE

 Gentoo Vendor Advisory:
 http://www.linuxsecurity.com/advisories/gentoo_advisory-2857.html




+---------------------------------+
|  Package:  nethack              | ----------------------------//
|  Date: 02-18-2003               |
+---------------------------------+

Description:
Overflowing a buffer in nethack may lead to privelige escalation to games
uid.

Vendor Alerts:

 Gentoo:
  PLEASE SEE VENDOR ADVISORY FOR UPDATE

  Gentoo Vendor Advisory:
  http://www.linuxsecurity.com/advisories/gentoo_advisory-2861.html




+---------------------------------+
|  Package:  bitchx               | ----------------------------//
|  Date: 02-20-2003               |
+---------------------------------+

Description:
A denial of service vulnerability exists in BitchX. Sending a malformed
RPL_NAMREPLY numeric 353 causes BitchX to segfault.

Vendor Alerts:

Gentoo:
 PLEASE SEE VENDOR ADVISORY FOR UPDATE

 Gentoo Vendor Advisory:
 http://www.linuxsecurity.com/advisories/gentoo_advisory-2876.html



+---------------------------------+
|  Package:  util-linux           | ----------------------------//
|  Date: 02-13-2003               |
+---------------------------------+

Description:
The util-linux package provides the mcookie utility, a tool for generating
random cookies that can be used for X authentication.  The util-linux
packages that were distributed with Mandrake Linux 8.2 and 9.0 had a patch
that made it use /dev/urandom instead of /dev/random, which resulted in
the mcookie being more predictable than it would otherwise be.  This patch
has been removed in these updates, giving mcookie a better source of
entropy and making the generated cookies less predictable.  Thanks to Dirk
Mueller for pointing this out.

Vendor Alerts:

 Mandrake:
  http://www.mandrakesecure.net/en/ftp.php

  9.0/RPMS/losetup-2.11u-1.1mdk.i586.rpm
  09586a3e81b2212b8044445fc4559fc5

  9.0/RPMS/mount-2.11u-1.1mdk.i586.rpm
  be9751b84f20ec4bc1ced03c4004dcb4

  9.0/RPMS/util-linux-2.11u-1.1mdk.i586.rpm
  613661ae3c324580e653330814f74756


  Mandrake Vendor Advisory:
  http://www.linuxsecurity.com/advisories/mandrake_advisory-2854.html


+---------------------------------+
|  Package:  apcupsd              | ----------------------------//
|  Date: 02-13-2003               |
+---------------------------------+

Description:
A remote root vulnerability in slave setups and some buffer overflows in
the network information server code were discovered by the apcupsd
developers.  They have been fixed in the latest unstable version, 3.10.5
which contains additional enhancements like USB support, and the latest
stable version, 3.8.6.

Vendor Alerts:

 Mandrake:
  http://www.mandrakesecure.net/en/ftp.php

  9.0/RPMS/apcupsd-3.10.5-1.1mdk.i586.rpm
  9031edab8f3e692b6c5dbc8717819d8b

  9.0/SRPMS/apcupsd-3.10.5-1.1mdk.src.rpm
  cf73f9b746b808c17d55dacb44a2efaa

  Mandrake Vendor Advisory:
  http://www.linuxsecurity.com/advisories/mandrake_advisory-2869.html




+---------------------------------+
|  Package:  pam                  | ----------------------------//
|  Date: 02-18-2003               |
+---------------------------------+

Description:
Andreas Beck discovered that the pam_xauth module would forward
authorization information from the root account to unprivileged users.
This can be exploited by a local attacker to gain access to the root
user's X session.  In order for it to be successfully exploited, the
attacker would have to somehow get the root user to su to the account
belonging to the attacker.

Vendor Alerts:

 Mandrake:
  http://www.mandrakesecure.net/en/ftp.php

  9.0/RPMS/pam-0.75-25.1mdk.i586.rpm
  dc82d88d63dafc3668e7ab4f1d09d404

  9.0/RPMS/pam-devel-0.75-25.1mdk.i586.rpm
  ca86fc0f07855ced3f9ed7793608d376

  9.0/RPMS/pam-doc-0.75-25.1mdk.i586.rpm
  65545ca4597990fb5ccf0218a2b6c922

  9.0/RPMS/pam_ldap-156-1.1mdk.i586.rpm
  b70c25f7b8a3b5f86149dd199003a4ff


  Mandrake Vendor Advisory:
  http://www.linuxsecurity.com/advisories/mandrake_advisory-2869.html


+---------------------------------+
|  Package:  shadow-utils         | ----------------------------//
|  Date: 02-18-2003               |
+---------------------------------+

Description:
Updated shadow-utils packages correct a bug that caused the useradd tool
to create mail spools with incorrect permissions.

Vendor Alerts:

 Red Hat:
  ftp://updates.redhat.com/8.0/en/os/i386/
  shadow-utils-20000902-12.8.i386.rpm
  6dd61ab968afbc537e25faea914788bc

  Red Hat Vendor Advisory:
  http://www.linuxsecurity.com/advisories/redhat_advisory-2878.html



+---------------------------------+
|  Package:  imp                  | ----------------------------//
|  Date: 02-18-2003               |
+---------------------------------+

Description:
An attacker can gain access to protected information or, in conjunction
with PostgreSQL, execute shell commands remotely.

Vendor Alerts:

  SuSE:
  ftp://ftp.suse.com/pub/suse/i386/update/8.1/
  rpm/i586/imp-2.2.6-248.i586.rpm
  17b26d9e48a75cc499b6d4da0c1067c3

  SuSE Vendor Advisory:
  http://www.linuxsecurity.com/advisories/suse_advisory-2862.html

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