(Debian Issues Revised Fix for 3.0) Sendmail Buffer Overflow in Parsing Addresses May Let Remote or Local Users Execute Arbitrary Code With Root Privileges


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Debian Security Advisory DSA 278-2                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
April 4th, 2003                         http://www.debian.org/security/faq
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Package        : sendmail
Vulnerability  : char-to-int conversion
Problem-Type   : local, maybe remote
Debian-specific: no
CVE Id         : CAN-2003-0161
CERT Id        : VU#897604 CA-2003-12

This is a major brown paperbag update.  The old packages for the
stable distribution (woody) did not work as expected and you should
only update to the neww packages mentioned in this advisory.  The
packages in the old stable distribution (potato) are working
properly.  I'm awfully sorry for the inconvenience.

At the moment updated packages are only available for alpha, i386 and sparc.

The original advisory was:

   Michal Zalewski discovered a buffer overflow, triggered by a char to
   int conversion, in the address parsing code in sendmail, a widely used
   powerful, efficient, and scalable mail transport agent.  This problem
   is potentially remotely exploitable.

For the stable distribution (woody) this problem has been
fixed in version 8.12.3-6.3.

We recommend that you upgrade your sendmail 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 3.0 alias woody
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  Source archives:

    http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-6.3.dsc
      Size/MD5 checksum:      761 105b2619c72e95e90aec1f8dbe69fb6d
    http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-6.3.diff.gz
      Size/MD5 checksum:   253206 95f7f532f1f94061803d0b5407c7bd7a
    http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3.orig.tar.gz
      Size/MD5 checksum:  1840401 b198b346b10b3b5afc8cb4e12c07ff4d

  Architecture independent components:

    http://security.debian.org/pool/updates/main/s/sendmail/sendmail-doc_8.12.3-6.3_all.deb
      Size/MD5 checksum:   747428 b3ade8ee7ac5de3f7e9a66eaf51654c0

  Alpha architecture:

    http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-6.3_alpha.deb
      Size/MD5 checksum:   267498 9616df6f9a46472c1fd6e3d2a418d9f8
    http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-6.3_alpha.deb
      Size/MD5 checksum:  1218434 23579de1583d6fb9976e1b1c2f59fc00

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-6.3_i386.deb
      Size/MD5 checksum:   236984 2a1bef62b8cbf587529a798b1090429c
    http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-6.3_i386.deb
      Size/MD5 checksum:  1003430 66deba993c135453e2e554faf4955615

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-6.3_sparc.deb
      Size/MD5 checksum:   244974 0a2bbdfec93148f2fa796874012dfc2a
    http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-6.3_sparc.deb
      Size/MD5 checksum:  1069450 cbe517ba8fbd191dc5dffe1604da4454


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

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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>

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