openSUSE Security Update: Security update for compat-openssl098 ______________________________________________________________________________ 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 ______________________________________________________________________________ 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