Articles / Debian: New hypermail packa…

Debian: New hypermail packages fix arbitrary code execution

Ulf Harnhammar discovered two problems in hypermail, a program to create HTML archives of mailing lists. An attacker could craft a long filename for an attachment that would overflow two buffers when a certain option for interactive use was given, opening the possibility to inject arbitrary code. This code would then be executed under the user id hypermail runs as, mostly as a local user. Automatic and silent use of hypermail does not seem to be affected. Secondly, the CGI program mail, which is not installed by the Debian package, does a reverse look-up of the user's IP number and copies the resulting hostname into a fixed-size buffer. A specially crafted DNS reply could overflow this buffer, opening the program to an exploit. Fixed packages are available from security.debian.org.
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Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA 248-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
January 31st, 2003                      http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : hypermail
Vulnerability  : buffer overflows
Problem-Type   : remote
Debian-specific: no
CVE Id         : CAN-2003-0057

Ulf Harnhammar discovered two problems in hypermail, a program to
create HTML archives of mailing lists.

An attacker could craft a long filename for an attachment that would
overflow two buffers when a certain option for interactive use was
given, opening the possibility to inject arbitrary code.  This code
would then be executed under the user id hypermail runs as, mostly as
a local user.  Automatic and silent use of hypermail does not seem to
be affected.

The CGI program mail, which is not installed by the Debian package,
does a reverse look-up of the user's IP number and copies the
resulting hostname into a fixed-size buffer.  A specially crafted DNS
reply could overflow this buffer, opening the program to an exploit.

For the stable distribution (woody) this problem has been fixed in
version 2.1.3-2.0.

For the old stable distribution (potato) this problem has been fixed
in version 2.0b25-1.1.

For the unstable distribution (sid) this problem has been fixed
in version 2.1.6-1.

We recommend that you upgrade your hypermail packages.


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 2.2 alias potato
- ---------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.0b25-1.1.dsc
      Size/MD5 checksum:      577 96bc728b8bdc3f3b31b2f6e7fb96e1c8
    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.0b25-1.1.diff.gz
      Size/MD5 checksum:     9685 0450f68f3ab45eadc7fab7e97076c845
    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.0b25.orig.tar.gz
      Size/MD5 checksum:   297049 7a5875311ae71fc6fa5dee18e9d826ee

  Alpha architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.0b25-1.1_alpha.deb
      Size/MD5 checksum:   416502 97032e2a8ad790a2b760a49ac39871f2

  ARM architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.0b25-1.1_arm.deb
      Size/MD5 checksum:   150356 d3bf5bcce7068ccec8c5e246f6cc9491

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.0b25-1.1_i386.deb
      Size/MD5 checksum:   145048 987bb3659b98eb4dc7e020afd58c24ac

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.0b25-1.1_m68k.deb
      Size/MD5 checksum:   141910 cbe0d66a017f5ab47b6318c7a40a02b6

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.0b25-1.1_powerpc.deb
      Size/MD5 checksum:   156548 5cda5263360e4f39d8b82e47843039e3

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.0b25-1.1_sparc.deb
      Size/MD5 checksum:   175610 3dec97942bb30b61eff8c748577bc473


Debian GNU/Linux 3.0 alias woody
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0.dsc
      Size/MD5 checksum:      606 e335b50b6f796c6e4808084840560bee
    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0.diff.gz
      Size/MD5 checksum:    13146 106aba184df6afb95733bfe24da073fc
    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3.orig.tar.gz
      Size/MD5 checksum:   723942 f1bea3df4b34e58e2f6318f2ed3f9770

  Alpha architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0_alpha.deb
      Size/MD5 checksum:   212258 8bad85e95bfa8f47e967a29a7b0a9f85

  ARM architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0_arm.deb
      Size/MD5 checksum:   187986 0583077e67b953f71de182ff42547bbe

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0_i386.deb
      Size/MD5 checksum:   179114 aeb01e13233b078e4ad7266d5b5d5860

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0_ia64.deb
      Size/MD5 checksum:   243654 a11258231578df4f2cbd906792990fca

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0_hppa.deb
      Size/MD5 checksum:   203300 b7a96e5819c87be6c970c815c141b5ee

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0_m68k.deb
      Size/MD5 checksum:   171634 ac39ecc46835d711321b42041d5e967d

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0_mips.deb
      Size/MD5 checksum:   200810 2f389f8858d479e523a41e45308c201c

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0_mipsel.deb
      Size/MD5 checksum:   199906 6d4db8dd21081d4b27c6ce1331476cb0

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0_powerpc.deb
      Size/MD5 checksum:   193648 cb233bbc6cb8064f59c1dc6ef56539dd

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0_s390.deb
      Size/MD5 checksum:   188614 68b89720900812d551c760b61af04daf

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/h/hypermail/hypermail_2.1.3-2.0_sparc.deb
      Size/MD5 checksum:   194596 103964dcf3a82f8d1df4d5afe9edecc9



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

- ---------------------------------------------------------------------------------
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 ' and http://packages.debian.org/

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