MGASA-2018-0365 - Updated openssl packages fix security vulnerabilities

Publication date: 02 Sep 2018
URL: https://advisories.mageia.org/MGASA-2018-0365.html
Type: security
Affected Mageia releases: 6
CVE: CVE-2018-0732,
     CVE-2018-0737

Updated openssl packages fix security vulnerabilities:

During key agreement in a TLS handshake using a DH(E) based ciphersuite a
malicious server can send a very large prime value to the client. This will
cause 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 (CVE-2018-0732).

The OpenSSL 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
recover the private key (CVE-2018-0737).

References:
- https://bugs.mageia.org/show_bug.cgi?id=22934
- https://www.openssl.org/news/secadv/20180416.txt
- https://openwall.com/lists/oss-security/2018/04/16/3
- https://ubuntu.com/security/notices/USN-3692-1
- https://ubuntu.com/security/notices/USN-3628-1
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0732
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0737

SRPMS:
- 6/core/openssl-1.0.2p-1.mga6