2018年6月30日 星期六

[USN-3692-1] OpenSSL vulnerabilities

---------- Forwarded message ----------
From: Marc Deslauriers 
Date: 2018-06-26 20:32 GMT+08:00
...
Summary:

Several security issues were fixed in OpenSSL.

Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools
- openssl1.0: Secure Socket Layer (SSL) cryptographic library and tools

Details:

Keegan Ryan discovered that OpenSSL incorrectly handled ECDSA key
generation. An attacker could possibly use this issue to perform a
cache-timing attack and recover private ECDSA keys. (CVE-2018-0495)

Guido Vranken discovered that OpenSSL incorrectly handled very large prime
values during a key agreement. A remote attacker could possibly use this
issue to consume resources, leading to a denial of service. (CVE-2018-0732)

Alejandro Cabrera Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis
Manuel Alvarez Tapia discovered that OpenSSL incorrectly handled RSA key
generation. An attacker could possibly use this issue to perform a
cache-timing attack and recover private RSA keys. (CVE-2018-0737)
...
References:
  https://usn.ubuntu.com/usn/usn-3692-1
  CVE-2018-0495, CVE-2018-0732, CVE-2018-0737

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