Notified: June 21, 2001 Updated: August 31, 2001
Status
Affected
Vendor Statement
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Sun Microsystems, Inc. Security Bulletin
Bulletin Number: #00206
Date: August 30, 2001
Cross-Ref: CERT Advisory CA-2001-15
Title: in.lpd
________________________________________________________________________________
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________________________________________________________________________________
1. Bulletins Topics
Sun announces the release of patches for Solaris(tm) 8, 7, and
2.6 (SunOS(tm) 5.8, 5.7, and 5.6) which relate to an in.lpd
vulnerability reported in CERT CA-2001-15.
Sun recommends that you install the patches listed in section 4
immediately on systems running SunOS 5.8, 5.7, and 5.6 which
use in.lpd.
2. Who is Affected
Vulnerable: SunOS 5.8, 5.8_x86, 5.7, 5.7_x86, 5.6,
5.6_x86
3. Understanding the Vulnerability
The in.lpd daemon is the BSD print protocol daemon. The in.lpd
daemon implements the network listening service for the BSD
print protocol specified in RFC 1179. The BSD print protocol
provides a remote interface for systems to interact with a
local spooling system. CERT Advisory CA-2001-15 describes a
buffer overflow in the in.lpd daemon which may crash in.lpd or
allow arbitrary code to be executed with elevated privileges
on the victim system. The issue was discovered by ISS X-Force
who published an advisory at:
http://xforce.iss.net/alerts/advise80.php
CERT Advisory CA-2001-15 is available from:
http://www.cert.org/advisories/CA-2001-15.html
4. List of Patches
The following patches are available in relation to the above problem.
OS Version Patch ID
__________ _________
SunOS 5.8 109320-04
SunOS 5.8_x86 109321-04
SunOS 5.7 107115-09
SunOS 5.7_x86 107116-09
SunOS 5.6 106235-09
SunOS 5.6_x86 106236-09
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APPENDICES
A. Patches listed in this bulletin are available to all Sun customers at:
http://sunsolve.sun.com/securitypatch
B. Checksums for the patches listed in this bulletin are available at:
ftp://sunsolve.sun.com/pub/patches/CHECKSUMS
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________________________________________________________________________________
Copyright 2000 Sun Microsystems, Inc. All rights reserved. Sun,
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Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
Sun has confirmed the existence of this vulnerability andnow has patches included in a jumbo set provided for all lp services. Until these patches can be applied, the following workarounds may be used to mitigate against the risk of being attacked via exploitation of this vulnerability:
- Disable the print service in /etc/inetd.conf
- Enable the noexec_user_stack tunable
- Block access to 515/tcp (printer) at all appropriate network perimeters
If you have feedback, comments, or additional information about this vulnerability, please send us email.