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             AUSCERT External Security Bulletin Redistribution

               SUSE-SU-2019:14215-1 Security update for tar
                             12 November 2019


        AusCERT Security Bulletin Summary

Product:           tar
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Denial of Service -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-9923 CVE-2018-20482 

Reference:         ESB-2019.1246

Original Bulletin: 

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SUSE Security Update: Security update for tar


Announcement ID:   SUSE-SU-2019:14215-1
Rating:            moderate
References:        #1120610 #1130496 #1152736
Cross-References:  CVE-2018-20482 CVE-2019-9923
Affected Products:
                   SUSE Linux Enterprise Server 11-SP4-LTSS
                   SUSE Linux Enterprise Point of Sale 11-SP3
                   SUSE Linux Enterprise Debuginfo 11-SP4
                   SUSE Linux Enterprise Debuginfo 11-SP3

An update that solves two vulnerabilities and has one errata is now available.


This update for tar to version 1.27.1 fixes the following issues:
tar 1.27.1 brings following changes (jsc#ECO-339)

  o Sparse files with large data
  o No backticks in quoting
  o --owner and --group names and numbers
  o Support for POSIX ACLs, extended attributes and SELinux context.
  o Passing command line arguments to external commands.
  o New configure option --enable-gcc-warnings, intended for debugging.
  o New warning control option --warning=[no-]record-size
  o New command line option --keep-directory-symlink
  o Fix unquoting of file names obtained via the -T option.
  o Fix GNU long link header timestamp (backward compatibility).

Security issues fixed:

  o CVE-2019-9923: Fixed a denial of service while parsing certain archives
    with malformed extended headers in pax_decode_header() (bsc#1130496).
  o CVE-2018-20482: Fixed a denial of service when the '--sparse' option
    mishandles file shrinkage during read access (bsc#1120610).

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 11-SP4-LTSS:
    zypper in -t patch slessp4-tar-14215=1
  o SUSE Linux Enterprise Point of Sale 11-SP3:
    zypper in -t patch sleposp3-tar-14215=1
  o SUSE Linux Enterprise Debuginfo 11-SP4:
    zypper in -t patch dbgsp4-tar-14215=1
  o SUSE Linux Enterprise Debuginfo 11-SP3:
    zypper in -t patch dbgsp3-tar-14215=1

Package List:

  o SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):
  o SUSE Linux Enterprise Point of Sale 11-SP3 (i586):
  o SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ppc64 s390x x86_64):
  o SUSE Linux Enterprise Debuginfo 11-SP3 (i586 s390x x86_64):


  o https://www.suse.com/security/cve/CVE-2018-20482.html
  o https://www.suse.com/security/cve/CVE-2019-9923.html
  o https://bugzilla.suse.com/1120610
  o https://bugzilla.suse.com/1130496
  o https://bugzilla.suse.com/1152736

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