Linux Security
Linux Security
Linux Security

Debian: New fetchmail packages fix denial of service

Date 21 Sep 2007
4643
Posted By LinuxSecurity Advisories
Matthias Andree discovered that fetchmail, an SSL enabled POP3, APOP and IMAP mail gatherer/forwarder, can under certain circumstances attempt to dereference a NULL pointer and crash.
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Debian Security Advisory DSA-1377-2                  This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                               Steve Kemp
September 21, 2007                    https://www.debian.org/security/faq
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Package        : fetchmail
Vulnerability  : null pointer dereference
Problem type   : remote
Debian-specific: no
CVE Id(s)      : CVE-2007-4565

Matthias Andree discovered that fetchmail, an SSL enabled POP3, APOP 
and IMAP mail gatherer/forwarder, can under certain circumstances 
attempt to dereference a NULL pointer and crash.

For the stable distribution (etch), this problem has been fixed in
version 6.3.6-1etch1.

For the old stable distribution (sarge), this problem was not present.

For the unstable distribution (sid), this problem will be fixed soon.

We recommend that you upgrade your fetchmail 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 4.0 alias etch
- -------------------------------

i386 architecture (Intel ia32)

  https://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.3.6-1etch1_i386.deb
    Size/MD5 checksum:   641344 2eadc43a18712b3a1763094f7c837475


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

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For apt-get: deb https://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
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