Advisories, June 7, 2006

http://security.gentoo.org/

Severity: Normal
Title: shadow: Privilege escalation
Date: June 07, 2006
Bugs: #133615
ID: 200606-02

Synopsis

A security issue in shadow allows a local user to perform certain actions with escalated privileges. Background

shadow provides a set of utilities to deal with user accounts.

Affected packages

     Package          /   Vulnerable   /                    Unaffected

  1  sys-apps/shadow      < 4.0.15-r2                     >= 4.0.15-r2

Description

When the mailbox is created in useradd, the "open()" function does not receive the three arguments it expects while O_CREAT is present, which leads to random permissions on the created file, before fchmod() is executed.

Impact

Depending on the random permissions given to the mailbox file which is at this time owned by root, a local user may be able to open this file for reading or writing, or even executing it, maybe as the root user.

Workaround

There is no known workaround at this time.

Resolution

All shadow users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-apps/shadow-4.0.15-r2"

References

[ 1 ] CVE-2006-1174

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1174

Availability

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

http://security.gentoo.org/glsa/glsa-200606-02.xml

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 http://bugs.gentoo.org.

License

Copyright 2006 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.

http://creativecommons.org/licenses/by-sa/2.5

http://security.gentoo.org/

Severity: Normal
Title: Dia: Format string vulnerabilities
Date: June 07, 2006
Bugs: #133699
ID: 200606-03

Synopsis

Format string vulnerabilities in Dia may lead to the execution of arbitrary code.

Background

Dia is a GTK+ based diagram creation program.

Affected packages

     Package         /  Vulnerable  /                       Unaffected

  1  app-office/dia      < 0.95.1                            >= 0.95.1

Description

KaDaL-X discovered a format string error within the handling of filenames. Hans de Goede also discovered several other format string errors in the processing of dia files.

Impact

By enticing a user to open a specially crafted file, a remote attacker could exploit these vulnerabilities to execute arbitrary code with the rights of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All Dia users should upgrade to the latest available version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-office/dia-0.95.1"

References

[ 1 ] CVE-2006-2453

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2453

[ 2 ] CVE-2006-2480

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2480

Availability

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

http://security.gentoo.org/glsa/glsa-200606-03.xml

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 http://bugs.gentoo.org.

License

Copyright 2006 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.

http://creativecommons.org/licenses/by-sa/2.5