Operating System:

[SUSE]

Published:

28 March 2019

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.1022
                SUSE-SU-2019:0776-1 Security update for w3m
                               28 March 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           w3m
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Create Arbitrary Files -- Remote with User Interaction
                   Denial of Service      -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-6198 CVE-2018-6197 CVE-2018-6196

Reference:         ESB-2018.0345
                   ESB-2018.0327

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2019/suse-su-20190776-1.html

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SUSE Security Update: Security update for w3m

______________________________________________________________________________

Announcement ID:   SUSE-SU-2019:0776-1
Rating:            moderate
References:        #1077559 #1077568 #1077572
Cross-References:  CVE-2018-6196 CVE-2018-6197 CVE-2018-6198
Affected Products:
                   SUSE Linux Enterprise Server 12-SP4
                   SUSE Linux Enterprise Server 12-SP3
                   SUSE Linux Enterprise Desktop 12-SP4
                   SUSE Linux Enterprise Desktop 12-SP3
______________________________________________________________________________

An update that fixes three vulnerabilities is now available.

Description:

This update for w3m fixes several issues.
These security issues were fixed:

  o CVE-2018-6196: Prevent infinite recursion in HTMLlineproc0 caused by the
    feed_table_block_tag function which did not prevent a negative indent value
    (bsc#1077559)
  o CVE-2018-6197: Prevent NULL pointer dereference in formUpdateBuffer (bsc#
    1077568)
  o CVE-2018-6198: w3m did not properly handle temporary files when the ~/.w3m
    directory is unwritable, which allowed a local attacker to craft a symlink
    attack to overwrite arbitrary files (bsc#1077572)

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  o SUSE Linux Enterprise Server 12-SP4:
    zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-776=1
  o SUSE Linux Enterprise Server 12-SP3:
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-2019-776=1
  o SUSE Linux Enterprise Desktop 12-SP4:
    zypper in -t patch SUSE-SLE-DESKTOP-12-SP4-2019-776=1
  o SUSE Linux Enterprise Desktop 12-SP3:
    zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2019-776=1

Package List:

  o SUSE Linux Enterprise Server 12-SP4 (aarch64 ppc64le s390x x86_64):
       w3m-0.5.3.git20161120-161.3.4
       w3m-debuginfo-0.5.3.git20161120-161.3.4
       w3m-debugsource-0.5.3.git20161120-161.3.4
  o SUSE Linux Enterprise Server 12-SP3 (aarch64 ppc64le s390x x86_64):
       w3m-0.5.3.git20161120-161.3.4
       w3m-debuginfo-0.5.3.git20161120-161.3.4
       w3m-debugsource-0.5.3.git20161120-161.3.4
  o SUSE Linux Enterprise Desktop 12-SP4 (x86_64):
       w3m-0.5.3.git20161120-161.3.4
       w3m-debuginfo-0.5.3.git20161120-161.3.4
       w3m-debugsource-0.5.3.git20161120-161.3.4
  o SUSE Linux Enterprise Desktop 12-SP3 (x86_64):
       w3m-0.5.3.git20161120-161.3.4
       w3m-debuginfo-0.5.3.git20161120-161.3.4
       w3m-debugsource-0.5.3.git20161120-161.3.4


References:

  o https://www.suse.com/security/cve/CVE-2018-6196.html
  o https://www.suse.com/security/cve/CVE-2018-6197.html
  o https://www.suse.com/security/cve/CVE-2018-6198.html
  o https://bugzilla.suse.com/1077559
  o https://bugzilla.suse.com/1077568
  o https://bugzilla.suse.com/1077572

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