Debian Security Advisory

DLA-1449-1 openssl -- LTS security update

Date Reported:
28 Jul 2018
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 895844.
In Mitre's CVE dictionary: CVE-2018-0732, CVE-2018-0737.
More information:

Two issues were discovered in OpenSSL, the Secure Sockets Layer toolkit.

  • CVE-2018-0732

    Denial of service by a malicious server that sends a very large prime value to the client during TLS handshake.

  • CVE-2018-0737

    Alejandro Cabrera Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia discovered that 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.

For Debian 8 Jessie, these problems have been fixed in version 1.0.1t-1+deb8u9.

We recommend that you upgrade your openssl packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: