Security update for openssl1

Announcement ID: SUSE-SU-2018:2545-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2018-0732 ( SUSE ): 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • CVE-2018-0732 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2018-0732 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2018-0737 ( SUSE ): 4.7 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
  • CVE-2018-0737 ( NVD ): 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products:
  • Security Module for SUSE Linux Enterprise 11 11-SP3

An update that solves two vulnerabilities and has two security fixes can now be installed.

Description:

This update for openssl1 fixes the following security issues:

  • CVE-2018-0737: The RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could have recovered the private key (bsc#1089039)
  • CVE-2018-0732: During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server could have sent a very large prime value to the client. This caused the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack (bsc#1097158)
  • Blinding enhancements for ECDSA and DSA (bsc#1097624, bsc#1098592)

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:

  • Security Module for SUSE Linux Enterprise 11 11-SP3
    zypper in -t patch secsp3-openssl1-13755=1

Package List:

  • Security Module for SUSE Linux Enterprise 11 11-SP3 (s390x x86_64 i586 ppc64 ia64)
    • libopenssl1-devel-1.0.1g-0.58.12.1
    • openssl1-1.0.1g-0.58.12.1
    • libopenssl1_0_0-1.0.1g-0.58.12.1
    • openssl1-doc-1.0.1g-0.58.12.1
  • Security Module for SUSE Linux Enterprise 11 11-SP3 (ia64)
    • libopenssl1_0_0-x86-1.0.1g-0.58.12.1
  • Security Module for SUSE Linux Enterprise 11 11-SP3 (ppc64 s390x x86_64)
    • libopenssl1_0_0-32bit-1.0.1g-0.58.12.1

References: