Debian: 'fetchmail' buffer overflow vulnerability
Posted by LinuxSecurity.com Team   
Debian Wolfram Kleff found a problem in fetchmail: it would crash whenprocessing emails with extremely long headers. The problem wasa buffer overflow in the header parser which could be exploited.

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Debian Security Advisory DSA-060-1                   security@debian.org 
http://www.debian.org/security/                         Wichert Akkerman
June 16, 2001
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Package        : fetchmail
Problem type   : buffer overflow
Debian-specific: no

Wolfram Kleff found a problem in fetchmail: it would crash when
processing emails with extremely long headers. The problem was
a buffer overflow in the header parser which could be exploited.

This has been fixed in version 5.3.3-1.3, and we recommend that
you upgrade your fetchmail package immediately.

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.


Debian GNU/Linux 2.2 alias potato
---------------------------------

  Potato was released for alpha, arm, i386, m68k, powerpc and sparc.

  Source archives:
     http://security.debian.org/dists/stable/updates/main/source/fetchmail_5.3.3-1.2.diff.gz
      MD5 checksum: fbf35f3be1f9d8bee5d08a4a9e4d1a23
     http://security.debian.org/dists/stable/updates/main/source/fetchmail_5.3.3-1.2.dsc
      MD5 checksum: b2d5b8e11f7943a167dddbb4b1a0ad1b
     http://security.debian.org/dists/stable/updates/main/source/fetchmail_5.3.3.orig.tar.gz
      MD5 checksum: d2cffc4594ec2d36db6681b800f25e2a

  Architecture independent archives:
     http://security.debian.org/dists/stable/updates/main/binary-all/fetchmailconf_5.3.3-1.2_all.deb
      MD5 checksum: 7501327bf217b36540a0b6288362d40a

  Alpha architecture:
     http://security.debian.org/dists/stable/updates/main/binary-alpha/fetchmail_5.3.3-1.2_alpha.deb
      MD5 checksum: 9176d223e830d64f648c8374aec45e73

  ARM architecture:
     http://security.debian.org/dists/stable/updates/main/binary-arm/fetchmail_5.3.3-1.2_arm.deb
      MD5 checksum: ca4c1e5e8aba63badb08e26459608f1a

  Intel IA-32 architecture:
     http://security.debian.org/dists/stable/updates/main/binary-i386/fetchmail_5.3.3-1.2_i386.deb
      MD5 checksum: d985cf57911ad2b891ed6c92c50de317

  Motorola 680x0 architecture:
     http://security.debian.org/dists/stable/updates/main/binary-m68k/fetchmail_5.3.3-1.2_m68k.deb
      MD5 checksum: 3921efe505b3eb72a1cff41a11da2d5c

  PowerPC architecture:
     http://security.debian.org/dists/stable/updates/main/binary-powerpc/fetchmail_5.3.3-1.2_powerpc.deb
      MD5 checksum: d7828e3c6ce890e86fb65316e4b78768

  Sun Sparc architecture:
     http://security.debian.org/dists/stable/updates/main/binary-sparc/fetchmail_5.3.3-1.2_sparc.deb
      MD5 checksum: baf11fea7d050cbb5d9f00f95a16e0f7

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

For not yet released architectures please refer to the appropriate
directory  ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .

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