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SuSE Security Announcement: sudo (SuSE-SA:2001:13)

Apr 19, 2001, 11:40 (0 Talkback[s])
Date: Thu, 19 Apr 2001 11:31:21 +0200 (CEST)
From: Thomas Biege <thomas@suse.de>
Subject: [suse-security-announce] SuSE Security Announcement: sudo (SuSE-SA:2001:13)


SuSE Security Announcement

        Package:                sudo
        Announcement-ID:        SuSE-SA:2001:13
        Date:                   Wednesday, April 18th, 2001 12.26 MEST
        Affected SuSE versions: 6.1, 6.2, 6.3, 6.4, 7.0, 7.1
        Vulnerability Type:     possible local root compromise
        Severity (1-10):        6
        SuSE default package:   no
        Other affected systems: all systems using sudo

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

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

The setuid application sudo(8) allows a user to execute commands under the privileges of another user (including root). sudo(8) previous to version 1.6.3p6 is vulnerable by a buffer overflow in it's logging code, which could lead to local root compromise.

There is no exploit known to be public. A useful workaround isn't possible, the only fix is to install the new sudo packages.

Download the update package from locations described 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/ap1/sudo-1.6.3p6-3.i386.rpm b0d658c98effd4e11bed6d8c1f5f80f9
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/sudo-1.6.3p6-3.src.rpm a4b44f0998a165b3a69c598075420b7f

SuSE-7.0
ftp://ftp.suse.com/pub/suse/i386/update/7.0/ap1/sudo-1.6.3p6-21.i386.rpm a002d657c7faf24b9fb5b430061e6c19
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/sudo-1.6.3p6-21.src.rpm d9ebc68015886fb642a1795e21bde788

SuSE-6.4
ftp://ftp.suse.com/pub/suse/i386/update/6.4/ap1/sudo-1.5.9p1-79.i386.rpm 8a25b40ba081be885b214410b3c662ce
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/sudo-1.5.9p1-79.src.rpm 9a13efa0d76a4fe3cbda7dcd2e2befe0

SuSE-6.3
ftp://ftp.suse.com/pub/suse/i386/update/6.3/ap1/sudo-1.5.9p1-80.i386.rpm a6e359c6449d764199bce3b7bc2867d8
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/sudo-1.5.9p1-80.src.rpm b89db78d5b8d04b10ac6e17c29cec1c4

SuSE-6.2
ftp://ftp.suse.com/pub/suse/i386/update/6.2/ap1/sudo-1.5.9p1-79.i386.rpm c3fbbff2219bf948f9b209eefafab4fe
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/sudo-1.5.9p1-79.src.rpm 85ae3e3b9ef159201bb661e8f83e82d3

SuSE-6.1

      Packets for 6.1 won't be available, sorry.
      Try to install the 6.2-RPM, please.

Sprac Platform:

SuSE-7.1
ftp://ftp.suse.com/pub/suse/sparc/update/7.1/ap1/sudo-1.6.3p6-8.sparc.rpm 5531c5be20082b084e940d4e66dffea0
source rpm:
ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/sudo-1.6.3p6-8.src.rpm 98fb9920e8de32727deb5e4295ee70d4

SuSE-7.0
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/ap1/sudo-1.6.3p6-9.sparc.rpm cdd87431019ace22d0a2b0d46b294856
source rpm:
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/sudo-1.6.3p6-9.src.rpm 846035dcf0e42d22aac5d0dc77d90a02

AXP Alpha Platform:

SuSE-7.0
ftp://ftp.suse.com/pub/suse/axp/update/7.0/ap1/sudo-1.6.3p6-12.alpha.rpm c0fea14a3c0e565892f150cf97d971ed
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/sudo-1.6.3p6-12.src.rpm 42651a443d7ca62415bc2d3ef3dc5bde

SuSE-6.4
ftp://ftp.suse.com/pub/suse/axp/update/6.4/ap1/sudo-1.5.9p1-79.alpha.rpm 9a177de02176df90d8006fc7e8adae0d
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/sudo-1.5.9p1-79.src.rpm 9f52a3df082ba513cbc0af5da6cccbe4

SuSE-6.3
ftp://ftp.suse.com/pub/suse/axp/update/6.3/ap1/sudo-1.5.9p1-79.alpha.rpm 5bbe1f211cb53758ad2840d192280269
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/sudo-1.5.9p1-79.src.rpm 4687f818ab5dbc50b1c0a3b907775f30

PPC PowerPC Platform:

SuSE-7.1
ftp://ftp.suse.com/pub/suse/ppc/update/7.1/ap1/sudo-1.6.3p6-5.ppc.rpm 199a677423a84bc577a7a9199e5e22d4
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/sudo-1.6.3p6-5.src.rpm 49ed607375823b56d819e0610e3a8d31

SuSE-7.0
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/ap1/sudo-1.6.3p6-10.ppc.rpm 03ffbcf07ba9a4222c75b162c97f9292
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/sudo-1.6.3p6-10.src.rpm a07d0b0283ca83e14c4d58ca9bcc933c

SuSE-6.4
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/ap1/sudo-1.5.9p1-80.ppc.rpm b5c9dee89ee0101fa8ac5795c1e8e49c
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/sudo-1.5.9p1-80.src.rpm bfc917660898fdf9f2de170895ca7b22


2) Pending vulnerabilities in SuSE Distributions and Workarounds:

  • New RPMs for HylaFax, a Fax Server, are currently being build, which fix a format bug in hfaxd, which could lead to local root privilege.
  • NEdit a GUI-style text editor needs an update due to a tmp race condition. The source code is currently being reviewed and new RPMs will be available within the next days.
  • Updated man RPMs will be available in a few days.
  • In the past weeks, some security related bugs in the Linux kernel 2.2 and 2.4 were found. An announcement, that addresses this will be released this week.
  • Samba has serveral security problems, which could lead to local root access. Samba 2.0.8 fixes these problems. New RPMs are currently being build.

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

For general information or the frequently asked questions (faq) send mail to:

        <suse-security-info@suse.com> or
        <suse-security-faq@suse.com> respectively.


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.

Bye,

Thomas

-- 
  Thomas Biege, SuSE GmbH, Schanzaeckerstr. 10, 90443 Nuernberg
  E@mail: thomas@suse.de      Function: Security Support & Auditing
  "lynx -source http://www.suse.de/~thomas/thomas.pgp | pgp -fka"
  Key fingerprint = 51 AD B9 C7 34 FC F2 54  01 4A 1C D4 66 64 09 84