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SUSE: 2018:2956-1 Moderate: OpenSSL Denial Of Service Fix

suse
Calendar Grey September 30, 2018
Dist Suse Esm H88
A new update for openssl-1_1 has been released to tackle a moderate security vulnerability while resolving additional issues pertinent to SUSE.
An update that solves one vulnerability and has one errata is now available

Summary

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.

References

#1097158 #1101470

Cross- CVE-2018-0732

Affected Products:

SUSE Linux Enterprise Module for Basesystem 15

https://www.suse.com/security/cve/CVE-2018-0732.html

https://bugzilla.suse.com/1097158

https://bugzilla.suse.com/1101470

Announcement ID: SUSE-SU-2018:2956-1
Rating: moderate

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