- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200512-05
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: High
     Title: Xmail: Privilege escalation through sendmail
      Date: December 14, 2005
      Bugs: #109381
        ID: 200512-05

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=======
The sendmail program in Xmail is vulnerable to a buffer overflow,
potentially resulting in local privilege escalation.

Background
=========
Xmail is an Internet and intranet mail server.

Affected packages
================
    -------------------------------------------------------------------
     Package         /  Vulnerable  /                       Unaffected
    -------------------------------------------------------------------
  1  mail-mta/xmail       < 1.22                               >= 1.22

Description
==========
iDEFENSE reported that the AddressFromAtPtr function in the sendmail
program fails to check bounds on arguments passed from other functions,
and as a result an exploitable stack overflow condition occurs when
specifying the "-t" command line option.

Impact
=====
A local attacker can make a malicious call to sendmail, potentially
resulting in code execution with elevated privileges.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All Xmail users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=mail-mta/xmail-1.22"

References
=========
  [ 1 ] CVE-2005-2943
          [ 2 ] iDEFENSE Security Advisory

;type=vulnerabilities&flashstatus=true

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/200512-05

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org/.

License
======
Copyright 2005 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.0/