GLSA Bodhisattva
Joined: 23 Sep 2003 Posts: 7221 Location: Sat in front of my computer
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Posted: Thu Dec 08, 2005 12:31 pm Post subject: [ GLSA 200512-02 ] Webmin, Usermin: Format string vulnerabil |
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Gentoo Linux Security Advisory
Title: Webmin, Usermin: Format string vulnerability (GLSA 200512-02)
Severity: high
Exploitable: remote
Date: December 07, 2005
Bug(s): #113888
ID: 200512-02
Synopsis
Webmin and Usermin are vulnerable to a format string vulnerability which
may lead to the execution of arbitrary code.
Background
Webmin is a web-based interface for Unix-like systems. Usermin is
a simplified version of Webmin designed for use by normal users rather
than system administrators.
Affected Packages
Package: app-admin/webmin
Vulnerable: < 1.250
Unaffected: >= 1.250
Architectures: All supported architectures
Package: app-admin/usermin
Vulnerable: < 1.180
Unaffected: >= 1.180
Architectures: All supported architectures
Description
Jack Louis discovered that the Webmin and Usermin "miniserv.pl"
web server component is vulnerable to a Perl format string
vulnerability. Login with the supplied username is logged via the Perl
"syslog" facility in an unsafe manner.
Impact
A remote attacker can trigger this vulnerability via a specially
crafted username containing format string data. This can be exploited
to consume a large amount of CPU and memory resources on a vulnerable
system, and possibly to execute arbitrary code of the attacker's choice
with the permissions of the user running Webmin.
Workaround
There is no known workaround at this time.
Resolution
All Webmin users should upgrade to the latest version:
Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=app-admin/webmin-1.250" |
All Usermin users should upgrade to the latest version:
Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=app-admin/usermin-1.180" |
References
CVE-2005-3912
Dyad Security Advisory
Last edited by GLSA on Sun May 30, 2010 4:21 am; edited 3 times in total |
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