Debian Security Advisory DSA 457-1                     security@debian.org 
Debian -- Security Information                              Matt Zimmerman
March 8th, 2004                          Debian -- Debian security FAQ 
- --------------------------------------------------------------------------

Package        : wu-ftpd
Vulnerability  : several
Problem-Type   : remote
Debian-specific: no
CVE Ids        : CAN-2004-0148 CAN-2004-0185

Two vulnerabilities were discovered in wu-ftpd:

 CAN-2004-0148 - Glenn Stewart discovered that users could bypass the
 directory access restrictions imposed by the restricted-gid option by
 changing the permissions on their home directory.  On a subsequent
 login, when access to the user's home directory was denied, wu-ftpd
 would fall back to the root directory.

 CAN-2004-0185 - A buffer overflow existed in wu-ftpd's code which
 deals with S/key authentication.

For the stable distribution (woody) these problems have been fixed in
version 2.6.2-3woody4.

For the unstable distribution (sid) these problems have been fixed in
version 2.6.2-17.1.

We recommend that you update your wu-ftpd 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:

      
      Size/MD5 checksum:      607 ced69dc6017f9afd9ea2e993e5570084
      
      Size/MD5 checksum:   100777 399c02a6d064f2aef676fba75db3964a
      
      Size/MD5 checksum:   354784 b3c271f02aadf663b8811d1bff9da3f6

  Architecture independent components:

      
      Size/MD5 checksum:     3482 ef0f9788eecfa4290bbcea8e259b48e2

  Alpha architecture:

      
      Size/MD5 checksum:   291786 5d9f21b554fc210956d2e46e7e817bc8

  ARM architecture:

      
      Size/MD5 checksum:   265480 0820e29ec495c37629c79018bab2d267

  Intel IA-32 architecture:

      
      Size/MD5 checksum:   257234 be096867b80cd54f46e3ce5615886537

  Intel IA-64 architecture:

      
      Size/MD5 checksum:   321396 9042bd62637c9a38469681de0711e39a

  HP Precision architecture:

      
      Size/MD5 checksum:   276170 61272ad0cb9bd68cfbe55c1ec68109b1

  Motorola 680x0 architecture:

      
      Size/MD5 checksum:   249496 54ac511d90b1082fed2528e412ddd913

  Big endian MIPS architecture:

      
      Size/MD5 checksum:   273044 07acbf48ee5b459af762f48df3c8cf81

  Little endian MIPS architecture:

      
      Size/MD5 checksum:   273172 ca3dd63e1f9340605cdd1bc71bf70698

  PowerPC architecture:

      
      Size/MD5 checksum:   268476 6a8df56549ab599125d5bc627ac0d51d

  IBM S/390 architecture:

      
      Size/MD5 checksum:   263268 aa81a92d47b93214ccbedba1e1871e4e

  Sun Sparc architecture:

      
      Size/MD5 checksum:   270514 9f6ddd158ba0cc9bd778ba8dfc3d75db

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

- ---------------------------------------------------------------------------------
For apt-get: deb  Debian -- Security Information  stable/updates main
For dpkg-ftp:    dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show ' and  http://packages.debian.org/

Debian: wu-ftpd Multiple vulnerabilities

March 9, 2004
These vulnerabilities allow a malicious user to bypass directory access restrictions and execute arbitrary code.

Summary

Two vulnerabilities were discovered in wu-ftpd:

CAN-2004-0148 - Glenn Stewart discovered that users could bypass the
directory access restrictions imposed by the restricted-gid option by
changing the permissions on their home directory. On a subsequent
login, when access to the user's home directory was denied, wu-ftpd
would fall back to the root directory.

CAN-2004-0185 - A buffer overflow existed in wu-ftpd's code which
deals with S/key authentication.

For the stable distribution (woody) these problems have been fixed in
version 2.6.2-3woody4.

For the unstable distribution (sid) these problems have been fixed in
version 2.6.2-17.1.

We recommend that you update your wu-ftpd 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:


Size/MD5 checksum: 607 ced69dc6017f9afd9ea2e993e5570084

Size/MD5 checksum: 100777 399c02a6d064f2aef676fba75db3964a

Size/MD5 checksum: 354784 b3c271f02aadf663b8811d1bff9da3f6

Architecture independent components:


Size/MD5 checksum: 3482 ef0f9788eecfa4290bbcea8e259b48e2

Alpha architecture:


Size/MD5 checksum: 291786 5d9f21b554fc210956d2e46e7e817bc8

ARM architecture:


Size/MD5 checksum: 265480 0820e29ec495c37629c79018bab2d267

Intel IA-32 architecture:


Size/MD5 checksum: 257234 be096867b80cd54f46e3ce5615886537

Intel IA-64 architecture:


Size/MD5 checksum: 321396 9042bd62637c9a38469681de0711e39a

HP Precision architecture:


Size/MD5 checksum: 276170 61272ad0cb9bd68cfbe55c1ec68109b1

Motorola 680x0 architecture:


Size/MD5 checksum: 249496 54ac511d90b1082fed2528e412ddd913

Big endian MIPS architecture:


Size/MD5 checksum: 273044 07acbf48ee5b459af762f48df3c8cf81

Little endian MIPS architecture:


Size/MD5 checksum: 273172 ca3dd63e1f9340605cdd1bc71bf70698

PowerPC architecture:


Size/MD5 checksum: 268476 6a8df56549ab599125d5bc627ac0d51d

IBM S/390 architecture:


Size/MD5 checksum: 263268 aa81a92d47b93214ccbedba1e1871e4e

Sun Sparc architecture:


Size/MD5 checksum: 270514 9f6ddd158ba0cc9bd778ba8dfc3d75db

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

For apt-get: deb Debian -- Security Information stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show ' and http://packages.debian.org/



Severity
Package : wu-ftpd
Vulnerability : several
Problem-Type : remote
Debian-specific: no
CVE Ids : CAN-2004-0148 CAN-2004-0185

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