Security update for openssl-1_1

SUSE Security Update: Security update for openssl-1_1
Announcement ID: SUSE-SU-2018:2041-1
Rating: moderate
References: #1097158 #1097624 #1098592
Affected Products:
  • SUSE Linux Enterprise Module for Legacy Software 15

  • An update that solves one vulnerability and has two fixes is now available.

    Description:

    This update for openssl-1_1 fixes the following issues:

    - 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 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:

    • SUSE Linux Enterprise Module for Legacy Software 15:
      zypper in -t patch SUSE-SLE-Module-Legacy-15-2018-1371=1

    Package List:

    • SUSE Linux Enterprise Module for Legacy Software 15 (aarch64 ppc64le s390x x86_64):
      • libopenssl-1_0_0-devel-1.0.2n-3.3.1
      • libopenssl1_0_0-1.0.2n-3.3.1
      • libopenssl1_0_0-debuginfo-1.0.2n-3.3.1
      • openssl-1_0_0-1.0.2n-3.3.1
      • openssl-1_0_0-debuginfo-1.0.2n-3.3.1
      • openssl-1_0_0-debugsource-1.0.2n-3.3.1

    References: