Security update for openvpn

Announcement ID: SUSE-SU-2017:2838-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2016-6329 ( NVD ): 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  • CVE-2017-12166 ( SUSE ): 10.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
  • CVE-2017-12166 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-12166 ( NVD ): 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-7478 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-7479 ( NVD ): 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SLES for SAP Applications 11-SP4
  • SUSE Linux Enterprise Point of Service 11 SP3
  • SUSE Linux Enterprise Server 11 SP3 LTSS 11-SP3
  • SUSE Linux Enterprise Server 11 SP4

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

Description:

This update for openvpn fixes the following security issues:

  • CVE-2017-12166: OpenVPN was vulnerable to a buffer overflow vulnerability when key-method 1 is used, possibly resulting in code execution. (bsc#1060877).
  • CVE-2016-6329: Now show which ciphers should no longer be used in openvpn --show-ciphers to avoid the SWEET32 attack (bsc#995374)
  • CVE-2017-7478: OpenVPN was vulnerable to unauthenticated Denial of Service of server via received large control packet. (bsc#1038709)
  • CVE-2017-7479: OpenVPN was vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated attacker. (bsc#1038711)
  • Some other hardening fixes have also been applied (bsc#1038713)

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 Point of Service 11 SP3
    zypper in -t patch sleposp3-openvpn-13322=1
  • SUSE Linux Enterprise Server 11 SP3 LTSS 11-SP3
    zypper in -t patch slessp3-openvpn-13322=1
  • SUSE Linux Enterprise Server 11 SP4
    zypper in -t patch slessp4-openvpn-13322=1
  • SLES for SAP Applications 11-SP4
    zypper in -t patch slessp4-openvpn-13322=1

Package List:

  • SUSE Linux Enterprise Point of Service 11 SP3 (i586)
    • openvpn-auth-pam-plugin-2.0.9-143.47.3.1
    • openvpn-2.0.9-143.47.3.1
  • SUSE Linux Enterprise Server 11 SP3 LTSS 11-SP3 (s390x x86_64 i586)
    • openvpn-auth-pam-plugin-2.0.9-143.47.3.1
    • openvpn-2.0.9-143.47.3.1
  • SUSE Linux Enterprise Server 11 SP4 (s390x x86_64 i586 ppc64 ia64)
    • openvpn-auth-pam-plugin-2.0.9-143.47.3.1
    • openvpn-2.0.9-143.47.3.1
  • SLES for SAP Applications 11-SP4 (ppc64 x86_64)
    • openvpn-auth-pam-plugin-2.0.9-143.47.3.1
    • openvpn-2.0.9-143.47.3.1

References: