Security update for openssl-1_1

SUSE Security Update: Security update for openssl-1_1
Announcement ID: SUSE-SU-2018:2956-1
Rating: moderate
References: #1097158 #1101470
Cross-References: CVE-2018-0732
Affected Products:
  • SUSE Linux Enterprise Module for Basesystem 15

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

Description:

This update for openssl-1_1 to 1.1.0i fixes the following issues:
These security issues were fixed:

  • 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)
  • Make problematic ECDSA sign addition length-invariant
  • Add blinding to ECDSA and DSA signatures to protect against side channel attacks

These non-security issues were fixed:
  • When unlocking a pass phrase protected PEM file or PKCS#8 container, we now allow empty (zero character) pass phrases.
  • Certificate time validation (X509_cmp_time) enforces stricter compliance with RFC 5280. Fractional seconds and timezone offsets are no longer allowed.
  • Fixed a text canonicalisation bug in CMS
  • Add openssl(cli) Provide so the packages that require the openssl binary can require this instead of the new openssl meta package (bsc#1101470)

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 Basesystem 15:
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-2083=1

Package List:

  • SUSE Linux Enterprise Module for Basesystem 15 (aarch64 ppc64le s390x x86_64):
    • libopenssl-1_1-devel-1.1.0i-4.9.2
    • libopenssl1_1-1.1.0i-4.9.2
    • libopenssl1_1-debuginfo-1.1.0i-4.9.2
    • libopenssl1_1-hmac-1.1.0i-4.9.2
    • openssl-1_1-1.1.0i-4.9.2
    • openssl-1_1-debuginfo-1.1.0i-4.9.2
    • openssl-1_1-debugsource-1.1.0i-4.9.2
  • SUSE Linux Enterprise Module for Basesystem 15 (noarch):
    • libopenssl-devel-1.1.0i-3.3.1
    • openssl-1.1.0i-3.3.1
  • SUSE Linux Enterprise Module for Basesystem 15 (x86_64):
    • libopenssl1_1-32bit-1.1.0i-4.9.2
    • libopenssl1_1-32bit-debuginfo-1.1.0i-4.9.2
    • libopenssl1_1-hmac-32bit-1.1.0i-4.9.2

References: