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SuSE Security Announcement: mutt

Jan 07, 2002, 22:15 (0 Talkback[s])

                        SuSE Security Announcement

        Package:                mutt
        Announcement-ID:        SuSE-SA:2002:001
        Date:                   Monday, Jan 7th 2001 20:30 MET
        Affected SuSE versions: 6.4, 7.0, 7.1, 7.2, 7.3
        Vulnerability Type:     local privilege escalation
        Severity (1-10):        6
        SuSE default package:   yes
        Other affected systems: systems with the mutt mailer
 installed

    Content of this advisory:
        1) security vulnerability resolved: mutt
           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

    mutt, a popular mail client for Linux-like systems, is vulnerable
 to a buffer overflow that is remotely exploitable. We have added
 patches to the versions of mutt as shipped with the affected
 distributions to fix the problem. We recommend to install the update
 package for your product and to restart all running instances of
 mutt.
    We thank Joost Pol for reporting the problem to the makers of
 mutt.


    Please download the update package for your distribution and
 verify its integrity by the methods listed in section 3) of this
 announcement. Then, install the package using the command "rpm -Fhv
 file.rpm" to apply the update.

    NOTE:
    The SuSE Linux 7.0 distribution was shipped with two packages
 that contain the mutt mail program: "mutt" and "muttssl". For legal
 reasons, the muttssl package is available from the German ftp server
 ftp.suse.de/. You can find out which version of the mutt package you
 are using with the following command:
        rpm -qf /usr/bin/mutt
    You only need to download and install the update package for the
 package that is installed on your system.



    i386 Intel Platform:

    SuSE-7.3
   
 ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/mutt-1.3.22.1i-105.i386.rpm 65dd9854d16c9e3178aaff935486ab8a
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/mutt-1.3.22.1i-105.src.rpm 6efacb822144a49de85bb417f677dba6

    SuSE-7.2
   
 ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/mutt-1.3.16i-71.i386.rpm 012e18c5cd2122218b396ae3600fa875
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/mutt-1.3.16i-71.src.rpm 5755b3e620a49bcb93893c524ecceb1b

    SuSE-7.1
   
 ftp://ftp.suse.com/pub/suse/i386/update/7.1/n1/mutt-1.3.12i-51.i386.rpm 40df9d8f98dcebc7057849a246f16e21
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/mutt-1.3.12i-51.src.rpm c689f09724acc63065a66e291dedc85b

    SuSE-7.0
   
 ftp://ftp.suse.com/pub/suse/i386/update/7.0/n1/mutt-1.2.5i-38.i386.rpm 1e7d85e9f499ebf4b3fe749d8669de9e
   
 ftp://ftp.suse.de/pub/suse/i386/update/7.0/sec1/muttssl-1.2.5i-14.i386.rpm a61d53a1e65299b558c799654e57203f
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/mutt-1.2.5i-38.src.rpm 543834be481fc61d8390a72cd42feeb0
    source rpm:
   
 ftp://ftp.suse.de/pub/suse/i386/update/7.0/zq1/muttssl-1.2.5i-14.src.rpm e67f148dee40a385136bc31240d51be6

    SuSE-6.4
   
 ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/mutt-1.0.1i-30.i386.rpm 53bae9b840be86683d670b784ec28c8c
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/mutt-1.0.1i-30.src.rpm c9ebd840ac72c5a3cfe9f45444f9a5e9



    Sparc Platform:

    SuSE-7.3
   
 ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/mutt-1.3.22.1i-27.sparc.rpm 946ba6c36bd8c46d1ab494f54b288dc6
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/mutt-1.3.22.1i-27.src.rpm 9009e2d4e4f32d437422b8e8ed12ef55

    SuSE-7.1
   
 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n1/mutt-1.3.12i-6.sparc.rpm 50f4f657a6a8bba819a34b2a05a9ea17
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/mutt-1.3.12i-6.src.rpm e7d3565e2063d76909c1a44e347f71de

    SuSE-7.0
   
 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/n1/mutt-1.2.5i-6.sparc.rpm fe06ca8880f38ea3064764614515f283
   
 ftp://ftp.suse.de/pub/suse/sparc/update/7.0/sec1/muttssl-1.2.5i-8.sparc.rpm 3bdec5870cdddb5be68a8da3ff093de8
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/mutt-1.2.5i-6.src.rpm e3492d0390a7271def3955030a5451a0
    source rpm:
   
 ftp://ftp.suse.de/pub/suse/sparc/update/7.0/zq1/muttssl-1.2.5i-8.src.rpm 3946004fc966f4135f47ff419bc2d1d6




    AXP Alpha Platform:

    SuSE-7.1
   
 ftp://ftp.suse.com/pub/suse/axp/update/7.1/n1/mutt-1.3.12i-5.alpha.rpm 0cf2bd45bf05aded0468cad34774cac6
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/mutt-1.3.12i-5.src.rpm 7b04b3b10bb07c1d05ecd2322fd92be9

    The AXP Alpha mutt packages for older distributions than 7.1 are
 currently being built and will appear at the usual location shortly.

    PPC Power PC Platform:

    SuSE-7.3
   
 ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/mutt-1.3.22.1i-63.ppc.rpm 023ad9fde88518a3c07e183712305fd7
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/mutt-1.3.22.1i-63.src.rpm ed935acf49c36bcb290f4db37c7ae800


    The PPC packages for SuSE Linux 7.1 are currently being built and
 will appear at the usual location shortly.


    SuSE-7.0
   
 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/n1/mutt-1.2.5i-12.ppc.rpm
 476ed5e796692adda068a49ed2baf95e
   
 ftp://ftp.suse.de/pub/suse/ppc/update/7.0/sec1/muttssl-1.2.5i-11.ppc.rpm f4cb8011468d3e476fd7e24f733aec70
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/mutt-1.2.5i-12.src.rpm 550d058119f86c54a04d7506dbc1e878
    source rpm:
   
 ftp://ftp.suse.de/pub/suse/ppc/update/7.0/zq1/muttssl-1.2.5i-11.src.rpm caa60a063952cb54582bf7a0885d5d81

    SuSE-6.4
   
 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/mutt-1.0.1i-30.ppc.rpm 2ae9d12e448f9f519441c74aeeb64d4d
    source rpm:
   
 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/mutt-1.0.1i-30.src.rpm e2ae04f334216cbcd82f906a3a2bb83f




___________________________________________________________________
_______

2)  Pending vulnerabilities in SuSE Distributions and Workarounds:

  - SuSE Security receive reports about successful exploitation of
 the problems in the secure shell package (ssh-1.2.27) on SuSE
 systems. Please read the secure shell security announcement from
 February 2001, available at
    http://www.suse.de/de/support/security/adv004_ssh.txt .
    More additional information can be found in the openssh
 announcement at
 http://www.suse.de/de/support/security/2001_045_openssh_txt.txt .

___________________________________________________________________
_______

3)  standard appendix: authenticity verification, additional
 information

  - Package authenticity verification:

    SuSE update packages are available on many mirror ftp servers all
 over the world. While this service is being considered valuable and
 important to the free and open source software community, many users
 wish to be sure about the origin of the package and its content
 before installing the package. There are two verification methods
 that can be used independently from each other to prove the
 authenticity of a downloaded file or rpm package:
    1) md5sums as provided in the (cryptographically signed)
 announcement. 2) using the internal gpg signatures of the rpm
 package.

    1) execute the command
        md5sum <name-of-the-file.rpm>
       after you downloaded the file from a SuSE ftp server or its
 mirrors. Then, compare the resulting md5sum with the one that is
 listed in the announcement. Since the announcement containing the
 checksums is cryptographically signed (usually using the key
 security@suse.de), the checksums show proof of the authenticity of
 the package. We disrecommend to subscribe to security lists which
 cause the email message containing the announcement to be modified
 so that the signature does not match after transport through the
 mailing list software.
       Downsides: You must be able to verify the authenticity of the
       announcement in the first place. If RPM packages are being
 rebuilt and a new version of a package is published on the ftp
 server, all md5 sums for the files are useless.

    2) rpm package signatures provide an easy way to verify the
 authenticity of an rpm package. Use the command
        rpm -v --checksig <file.rpm>
       to verify the signature of the package, where <file.rpm> is
 the filename of the rpm package that you have downloaded. Of course,
 package authenticity verification can only target an uninstalled rpm
 package file.
       Prerequisites:
        a) gpg is installed
        b) The package is signed using a certain key. The public part
 of this key must be installed by the gpg program in the directory
 ~/.gnupg/ under the user's home directory who performs the signature
 verification (usually root). You can import the key that is used by
 SuSE in rpm packages for SuSE Linux by saving this announcement to a
 file ("announcement.txt") and running the command (do "su -" to be
 root):
            gpg --batch; gpg < announcement.txt | gpg --import
           SuSE Linux distributions version 7.1 and thereafter
 install the key "build@suse.de" upon installation or upgrade,
 provided that the package gpg is installed. The file containing the
 public key is placed at the toplevel directory of the first CD
 (pubring.gpg) and at
 ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de .


  - 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.

   
 ====================================================================
= SuSE's security contact is security@suse.com or
 security@suse.de. The security@suse.de public key is listed
 below.
   
 ====================================================================
=
 __________________________________________________________________
________

    The information in this advisory may be distributed or
 reproduced, provided that the advisory is not modified in any way.
 In particular, it is desired that the cleartext signature shows
 proof of the authenticity of the text.
    SuSE GmbH makes no warranties of any kind whatsoever with respect
    to the information contained in this security advisory.

Type Bits/KeyID    Date       User ID
pub  2048R/3D25D3D9 1999-03-06 SuSE Security Team security@suse.de
pub  1024D/9C800ACA 2000-10-19 SuSE Package Signing Key
 build@suse.de

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