Debian Security Advisory

DLA-594-1 openssh -- LTS security update

Date Reported:
12 Aug 2016
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 833823.
In Mitre's CVE dictionary: CVE-2016-6515.
More information:

OpenSSH secure shell client and server had a denial of service vulnerability reported.

  • CVE-2016-6515

    The password authentication function in sshd in OpenSSH before 7.3 does not limit password lengths for password authentication, which allows remote attackers to cause a denial of service (crypt CPU consumption) via a long string.

For Debian 7 Wheezy, this problems has been fixed in version 6.0p1-4+deb7u6.

We recommend that you upgrade your openssh packages.

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