Debian Security Advisory

DLA-2378-1 openssl1.0 -- LTS security update

Date Reported:
25 Sep 2020
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2020-1968.
More information:

Robert Merget, Marcus Brinkmann, Nimrod Aviram, and Juraj Somorovsky discovered that certain Diffie-Hellman ciphersuites in the TLS specification and implemented by OpenSSL contained a flaw. A remote attacker could possibly use this issue to eavesdrop on encrypted communications. This was fixed in this update by disabling the insecure ciphersuites.

For Debian 9 stretch, this problem has been fixed in version 1.0.2u-1~deb9u2.

We recommend that you upgrade your openssl1.0 packages.

For the detailed security status of openssl1.0 please refer to its security tracker page at:

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