openSUSE Security Update: Security update for compat-openssl098
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Announcement ID:    openSUSE-SU-2018:2695-1
Rating:             moderate
References:         #1087102 #1089039 #1097158 #1097624 #1098592 
                    
Cross-References:   CVE-2018-0732 CVE-2018-0737 CVE-2018-0739
                   
Affected Products:
                    openSUSE Leap 42.3
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   An update that solves three vulnerabilities and has two
   fixes is now available.

Description:

   This update for compat-openssl098 fixes the following security 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)
   - 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-2018-0739: Constructed ASN.1 types with a recursive definition (such
     as can be found in PKCS7) could eventually exceed the stack given
     malicious input with excessive recursion. This could have resulted in
     DoS (bsc#1087102).

   This update was imported from the SUSE:SLE-12:Update update project.


Patch Instructions:

   To install this openSUSE 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:

   - openSUSE Leap 42.3:

      zypper in -t patch openSUSE-2018-997=1



Package List:

   - openSUSE Leap 42.3 (i586 x86_64):

      compat-openssl098-debugsource-0.9.8j-24.1
      libopenssl0_9_8-0.9.8j-24.1
      libopenssl0_9_8-debuginfo-0.9.8j-24.1

   - openSUSE Leap 42.3 (x86_64):

      libopenssl0_9_8-32bit-0.9.8j-24.1
      libopenssl0_9_8-debuginfo-32bit-0.9.8j-24.1


References:

   https://www.suse.com/security/cve/CVE-2018-0732.html
   https://www.suse.com/security/cve/CVE-2018-0737.html
   https://www.suse.com/security/cve/CVE-2018-0739.html
   https://bugzilla.suse.com/1087102
   https://bugzilla.suse.com/1089039
   https://bugzilla.suse.com/1097158
   https://bugzilla.suse.com/1097624
   https://bugzilla.suse.com/1098592

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