1945 : Multiple Unix Vendor lpd Incomplete Print Job Display Queue Overflow
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Info

Last Modified
7 months ago

Percent Complete
100%

Disclosure
Aug 29, 2001

Discovery
Unknown

Dates

Exploit
Unknown

Solution
Unknown

Description

 A local overflow exists in multiple operating systems. The line printer daemon (lpd) fails to correctly parse an incomplete print job request, resulting in a buffer overflow. With a specially crafted request, an attacker can execute arbitrary code resulting in a loss of integrity.

Classification

 Location: Local Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Unavailable
Disclosure: OSVDB Verified

Technical

 This vulnerability is only present when a malicious attacker can attack from a system that is listed in the "/etc/hosts.equiv" or "/etc/hosts.lpd" file of the target system.

Solution

 Upgrade to FreeBSD version 4.3-STABLE or to the RELENG_4_3 security branch after the respective correction date or higher, as it has been reported to fix this vulnerability. In addition, FreeBSD has released patches for some older versions. It is also possible to correct the flaw by implementing the following workaround: killall lpd.

Upgrade to NetBSD version 1.5.2 after the respective correction date or higher, as it has been reported to fix this vulnerability. In addition, NetBSD has released patches for some older versions. It is also possible to correct the flaw by implementing the following workaround: killall lpd and/or edit /etc/hosts.lpd to prevent remote connections to lpd.

OpenBSD has released a patch for some older versions.

Caldera/SCO has released patches for some older versions.

IBM has released a patch for some older versions.

Redhat has released patches for some older versions.

SuSE has released patches for some older versions.

Products
FreeBSD Project
Watch-list
FreeBSD
Watch-list
 4.0
2.x
3.0
3.1
3.2
3.3
3.4
3.5
3.5.1
4.2
4.3
4.1.x
OpenBSD
Watch-list
OpenBSD
Watch-list
 2.x
NetBSD Foundation, Inc.
Watch-list
NetBSD
Watch-list
 1.2.x
1.3.x
1.4
1.4.1
1.4.2
1.4.3
1.5
1.5.1
1.5.2
1.0
1.1
BSDI
Watch-list
BSD
Watch-list
 4.1
2.x
3.x
4.0.x
SuSE
Watch-list
Linux
Watch-list
 6.3
6.3 alpha
6.4
6.4 alpha
6.4 ppc
7.0
7.0 alpha
7.0 ppc
7.0 sparc
7.1
7.1 alpha
7.1 ppc
7.1 sparc
SCO Group, Inc.
Watch-list
Open Server
Watch-list
 5.0.1
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.0.6 a
International Business Machines Corporation
Watch-list
AIX
Watch-list
 4.3
5.1
Red Hat, Inc.
Watch-list
Linux
Watch-list
 6.2

References

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Credit
  • ISS X-Force Research - xforceBrand New Doo Dooiss.net - Internet Security Systems

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