SuSE Security Announcement: nkitb/nkitserv

Date: Thu, 22 Mar 2001 19:50:23 +0100 (CET)
From: Thomas Biege thomas@suse.de
To: suse-security-announce@suse.com
Subject: [suse-security-announce] SuSE Security Announcement:
nkitb/nkitserv

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                        SuSE Security Announcement

        Package:                nkitb/nkitserv
        Announcement-ID:        SuSE-SA:2001:07
        Date:                   Thursday, March 22th, 2001 19.06 MEST
        Affected SuSE versions: 6.1, 6.2, 6.3, 6.4, 7.0, 7.1
        Vulnerability Type:     remote denial-of-service
        Severity (1-10):        4
        SuSE default package:   yes: in.ftpd, no: timed
        Other affected systems: all system using in.ftpd (OpenBSD port) or timed

        Content of this advisory:
        1) security vulnerability resolved: timed, in.ftpd
           problem description, discussion, solution and upgrade information
        2) pending vulnerabilities, solutions, workarounds
        3) standard appendix (further information)

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1) problem description, brief discussion, solution, upgrade
information

Two parts of the nkitb/nkitserv package are vulnerable to
security related bugs.
in.ftpd(8):
A one-byte bufferoverflow was discovered in the OpenBSD port of the
FTP daemon in.ftpd(8) several weeks ago. This bug could just be
triggered by authenticated users, which have write access. This bug
is believed to not be exploitable under Linux. However, we prefer
to provide a fixed update package to make sure that the daemon is
on the safe side.
in.ftpd(8) will be invoked by inetd(8) and is activated by
default.

timed(8):
The time server daemon timed(8), which is started at boot time,
tries to synchronize the local host time with the time of other
machines on the local area network.
A bug in timed(8) was reported by the FreeBSD Security Officer,
that could be triggered remotely to crash the time server
daemon.

For SuSE 6.1-6.4 in.ftpd and timed were part of nkitb.
Users of SuSE 7.0 need to download the nkitserv package for both
in.ftpd and timed.
The bug in in.ftpd is fixed in SuSE 7.1, so nkitserv for SuSE 7.1
just includes a new version of timed(8).

Download the update package from locations desribed below and
install the package with the command `rpm -Uhv file.rpm’. The
md5sum for each file is in the line below. You can verify the
integrity of the rpm files using the command
`rpm –checksig –nogpg file.rpm’,
independently from the md5 signatures below.

i386 Intel Platform:

SuSE-7.1

ftp://ftp.suse.com/pub/suse/i386/update/7.1/n1/nkitserv-2001.3.16-0.i386.rpm

c4313f92a36916f0eba0b8837c9c0c81
source rpm:

ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/nkitb-2001.3.16-1.src.rpm

ec452523fa25c8aed962fbd3349d1f3d

SuSE-7.0

ftp://ftp.suse.com/pub/suse/i386/update/7.0/n1/nkitserv-2001.3.16-0.i386.rpm

02772824805c6c4293bd1750d7bda6d3
source rpm:

ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/nkitb-2001.3.16-1.src.rpm

5d301edc1b1ec9111572815aace33984

SuSE-6.4

ftp://ftp.suse.com/pub/suse/i386/update/6.4/a1/nkitb-2001.3.16-1.i386.rpm

842dea179cc449c4af25accf0c3f38ec
source rpm:

ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/nkitb-2001.3.16-1.src.rpm

c099e7c1194b7706100453a89433b59c

SuSE-6.3

ftp://ftp.suse.com/pub/suse/i386/update/6.3/a1/nkitb-2001.3.16-0.i386.rpm

768a636df4731cd8efd181aa2eaf2e60
source rpm:

ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/nkitb-2001.3.16-0.src.rpm

b705425c4c3cb70ebf9cd1345c92104a

SuSE-6.2

ftp://ftp.suse.com/pub/suse/i386/update/6.2/a1/nkitb-2001.3.16-0.i386.rpm

cbae31148c79c91a1443f79ee1ba34d3
source rpm:

ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/nkitb-2001.3.16-0.src.rpm

d287c01d35d00756ecbf8da04556037c

SuSE-6.1

ftp://ftp.suse.com/pub/suse/i386/update/6.1/a1/nkitb-2001.3.16-0.i386.rpm

5f45ade69a9e8c2756e671c4a6e3522a
source rpm:

ftp://ftp.suse.com/pub/suse/i386/update/6.1/zq1/nkitb-2001.3.16-0.src.rpm

62b969c4e666f3ea71b6ce6b31762718

Sparc Platform:

SuSE-7.1

ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n1/nkitserv-2001.3.16-0.sparc.rpm

142329dcae76a1603c0d84836192e357
source rpm:

ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/nkitb-2001.3.16-0.src.rpm

5bd9123cecba6ddd42cc965c599f383e

SuSE-7.0

ftp://ftp.suse.com/pub/suse/sparc/update/7.0/n1/nkitserv-2001.3.16-0.sparc.rpm

07ed33c76c7ae2df5b877003b254944d
source rpm:

ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/nkitb-2001.3.16-0.src.rpm

66ba7b71624f636e24e2d628c8f06e81

AXP Alpha Platform:

SuSE-7.0

ftp://ftp.suse.com/pub/suse/axp/update/7.0/n1/nkitserv-2001.3.16-0.alpha.rpm

5fcf177588788eb069bdb69332046d23
source rpm:

ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/nkitb-2001.3.16-0.src.rpm

c27ed3bf0c293eaa77fe5a8fa960e95d

SuSE-6.4

ftp://ftp.suse.com/pub/suse/axp/update/6.4/a1/nkitb-2001.3.16-0.alpha.rpm

385fa60c0c216f1d9e61afd52d37df93
source rpm:

ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/nkitb-2001.3.16-0.src.rpm

5ba60084740c9be9f89a729e2d21a77c

SuSE-6.3

ftp://ftp.suse.com/pub/suse/axp/update/6.3/a1/nkitb-2001.3.16-0.alpha.rpm

8a9e207a77e3c7f954e8faa91954f7aa
source rpm:

ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/nkitb-2001.3.16-0.src.rpm

53f8a03feacc7fb81b92a726c8e81d21

SuSE-6.1

ftp://ftp.suse.com/pub/suse/axp/update/6.1/a1/nkitb-2001.3.16-0.alpha.rpm

359a3432f73220cecd42ba0b365d5e06
source rpm:

ftp://ftp.suse.com/pub/suse/axp/update/6.1/zq1/nkitb-2001.3.16-0.src.rpm

e0ccf6395312f9c33518f5f083c9d51f

PPC PowerPC Platform:

SuSE-7.1

ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n1/nkitserv-2001.3.16-0.ppc.rpm

37bf5a963bc93215084b5634e864479c
source rpm:

ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/nkitb-2001.3.16-0.src.rpm

c31af637f58d9b43db542657b02bc772

SuSE-7.0

ftp://ftp.suse.com/pub/suse/ppc/update/7.0/n1/nkitserv-2001.3.16-1.ppc.rpm

ddc1dcfb94ba90f3cbdf395f89dd3b84
source rpm:

ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/nkitb-2001.3.16-1.src.rpm

2fa9c58b871248172285a64107e3be7c

SuSE-6.4

ftp://ftp.suse.com/pub/suse/ppc/update/6.4/a1/nkitb-2001.3.16-0.ppc.rpm

1dc4c831b5f6bd344ab8f511497b3fa5
source rpm:

ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/nkitb-2001.3.16-0.src.rpm

5529e5f63e2391ab1669efa0a8c33b57

---

2) Pending vulnerabilities in SuSE Distributions and
Workarounds:

– joe (configuration file vulnerability): The problem has been
reported on multiple security-related mailing lists. We are about
to provide fixed packages.

– The game spaceboom (SVGA shoot’em up) has been found
vulnerable to multiple vulnerabilities. As a reaction to these
bugs, the spaceboom game has been dropped from the distribution. We
recommend to deinstall the game from our 6.x and 7.x distribution
by using the command `rpm -e space´, or to remove the suid
bit from the file /usr/games/SpaceBoom/SpaceBoom using the
command
`chmod -s /usr/games/SpaceBoom/SpaceBoom´.
(Note: removing the suid bit prevents the game from being used by
non-root users and from being reinstalled after removal.)

– We are in the process of preparing update packages for the man
package which has been found vulnerable to a commandline format
string bug. The man command is installed suid man on SuSE systems.
When exploited, the bug can be used to install a different man
binary to introduce a trojan into the system. As an interim
workaround, we recommend to `chmod -s /usr/bin/man´ and
ignore the warnings and errors when viewing manpages.

– The file browser MidnightCommander (mc) is vulnerable to
unwanted program execution. Updates are currently being built.

– New RPMs, that fix’ a vulnerbility in the eperl package for
SuSE 6.1-7.1 are currently being built.

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3) standard appendix:

SuSE runs two security mailing lists to which any interested
party may subscribe:

    suse-security@suse.com
        -   general/linux/SuSE security discussion.
            All SuSE security announcements are sent to this list.
            To subscribe, send an email to
                suse-security-subscribe@suse.com.

    suse-security-announce@suse.com
        -   SuSE's announce-only mailing list.
            Only SuSE's security annoucements are sent to this list.
            To subscribe, send an email to
                suse-security-announce-subscribe@suse.com.

    For general information or the frequently asked questions (faq)
    send mail to:
        suse-security-info@suse.com or
        suse-security-faq@suse.com respectively.

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    SuSE's security contact is security@suse.com.

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The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way. SuSE GmbH
makes no warranties of any kind whatsoever with respect to the
information contained in this security advisory.