SUSE-SU-2018:2965-1: moderate: Security update for openssl-1_0_0

sle-security-updates at sle-security-updates at
Mon Oct 1 13:11:42 MDT 2018

   SUSE Security Update: Security update for openssl-1_0_0

Announcement ID:    SUSE-SU-2018:2965-1
Rating:             moderate
References:         #1089039 #1097158 #1101470 #1104789 #1106197 
Cross-References:   CVE-2018-0732 CVE-2018-0737
Affected Products:
                    SUSE Linux Enterprise Module for Legacy Software 15

   An update that solves two vulnerabilities and has three
   fixes is now available.


   This update for openssl-1_0_0 to 1.0.2p fixes the following issues:

   These security issues were fixed:

   - Prevent One&Done side-channel attack on RSA that allowed physically near
     attackers to use EM emanations to recover information (bsc#1104789)
   - 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)
   - Make problematic ECDSA sign addition length-invariant
   - Add blinding to ECDSA and DSA signatures to protect against side channel

   This non-security issue was fixed:

   - 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 Legacy Software 15:

      zypper in -t patch SUSE-SLE-Module-Legacy-15-2018-2095=1

Package List:

   - SUSE Linux Enterprise Module for Legacy Software 15 (aarch64 ppc64le s390x x86_64):



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