Security update for krb5

Announcement ID: SUSE-SU-2018:0859-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2017-11462 ( SUSE ): 5.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
  • CVE-2017-11462 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-5729 ( SUSE ): 7.2 CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-5729 ( NVD ): 4.7 CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
  • CVE-2018-5730 ( SUSE ): 6.5 CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
  • CVE-2018-5730 ( NVD ): 3.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
  • CVE-2018-5730 ( NVD ): 3.8 CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Affected Products:
  • SLES for SAP Applications 11-SP4
  • SUSE Linux Enterprise Server 11 SP4
  • SUSE Linux Enterprise Software Development Kit 11 SP4

An update that solves three vulnerabilities and has one security fix can now be installed.

Description:

This update for krb5 fixes several issues.

This security issue was fixed:

  • CVE-2017-11462: Prevent automatic security context deletion to prevent double-free (bsc#1056995).
  • CVE-2018-5729: Null pointer dereference in kadmind or DN container check bypass by supplying special crafted data (bsc#1083926).
  • CVE-2018-5730: DN container check bypass by supplying special crafted data (bsc#1083927).

This non-security issue was fixed:

  • Avoid indefinite polling in KDC communication. (bsc#970696)

Patch Instructions:

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

  • SUSE Linux Enterprise Software Development Kit 11 SP4
    zypper in -t patch sdksp4-krb5-13541=1
  • SUSE Linux Enterprise Server 11 SP4
    zypper in -t patch slessp4-krb5-13541=1
  • SLES for SAP Applications 11-SP4
    zypper in -t patch slessp4-krb5-13541=1

Package List:

  • SUSE Linux Enterprise Software Development Kit 11 SP4 (s390x x86_64 i586 ppc64 ia64)
    • krb5-devel-1.6.3-133.49.113.7.1
  • SUSE Linux Enterprise Software Development Kit 11 SP4 (x86_64 i586)
    • krb5-server-1.6.3-133.49.113.7.1
  • SUSE Linux Enterprise Software Development Kit 11 SP4 (ppc64 s390x x86_64)
    • krb5-devel-32bit-1.6.3-133.49.113.7.1
  • SUSE Linux Enterprise Server 11 SP4 (s390x x86_64 i586 ppc64 ia64)
    • krb5-1.6.3-133.49.113.7.1
    • krb5-server-1.6.3-133.49.113.7.1
    • krb5-client-1.6.3-133.49.113.7.1
    • krb5-apps-clients-1.6.3-133.49.113.7.1
    • krb5-apps-servers-1.6.3-133.49.113.7.1
  • SUSE Linux Enterprise Server 11 SP4 (ia64)
    • krb5-x86-1.6.3-133.49.113.7.1
  • SUSE Linux Enterprise Server 11 SP4 (ppc64 s390x x86_64)
    • krb5-32bit-1.6.3-133.49.113.7.1
  • SLES for SAP Applications 11-SP4 (ppc64 x86_64)
    • krb5-1.6.3-133.49.113.7.1
    • krb5-server-1.6.3-133.49.113.7.1
    • krb5-client-1.6.3-133.49.113.7.1
    • krb5-apps-clients-1.6.3-133.49.113.7.1
    • krb5-32bit-1.6.3-133.49.113.7.1
    • krb5-apps-servers-1.6.3-133.49.113.7.1

References: