Gentoo Linux Security Advisory GLSA 200606-02
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
Gentoo Linux Security Advisory GLSA 200606-03
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.