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From: Slackware Security Team <security@slackware.com>
To: slackware-security@slackware.com
Subject: [slackware-security] getmail (SSA:2004-278-01)
Date: Mon, 4 Oct 2004 12:52:39 -0700 (PDT)
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[slackware-security]  getmail (SSA:2004-278-01)

New getmail packages are available for Slackware 9.1, 10.0 and -current to
fix a security issue.  If getmail is used as root to deliver to user owned
files or directories, it can be made to overwrite system files.

More details about this issue may be found in the Common
Vulnerabilities and Exposures (CVE) database:

  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-880
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-881

Here are the details from the Slackware 10.0 ChangeLog:
+--------------------------+
patches/packages/getmail-4.2.0-noarch-1.tgz:  Upgraded to
  getmaii-4.2.0.  Earlier versions contained a local security flaw
  when used in an insecure fashion (surprise, running something as
  root that writes to user-controlled files or directories could
  allow the old symlink attack to clobber system files!  :-)
  From the getmail CHANGELOG:
      This vulnerability is not exploitable if the administrator does
      not deliver mail to the maildirs/mbox files of untrusted local
      users, or if getmail is configured to use an external
      unprivileged MDA.  This vulnerability is not remotely exploitable.
  Most users would not use getmail in such as way as to be vulnerable
  to this flaw, but if your site does this package closes the hole.
  I'd also recommend not using getmail like this.  Either run it as the
  user that owns the target mailbox, or deliver through an external MDA.
  (* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Updated package for Slackware 9.1:
ftp://ftp.slackware.com/pub/slackware/slackware-9.1/patches/packages/getmail-3.2.5-noarch-1.tgz

Updated package for Slackware 10.0:
ftp://ftp.slackware.com/pub/slackware/slackware-10.0/patches/packages/getmail-4.2.0-noarch-1.tgz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/getmail-4.2.0-noarch-1.tgz


MD5 signatures:
+-------------+

Slackware 9.1 package:
d31d3b88d33488fc55061ea154e31457  getmail-3.2.5-noarch-1.tgz

Slackware 10.0 package:
47b5454e061919f2d2128a16fca3a037  getmail-4.2.0-noarch-1.tgz

Slackware -current package:
65f55bffa3f5fb5158f5f5efb590671a  getmail-4.2.0-noarch-1.tgz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg getmail-4.2.0-noarch-1.tgz


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

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