Debian Long Term Support / LTS Security Information / 2014 / Security Information -- DLA-0003-1 openssl

Debian Security Advisory

DLA-0003-1 openssl -- LTS security update

Date Reported:

05 Jun 2014

Affected Packages:

openssl

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2014-0076, CVE-2014-0195, CVE-2014-0221, CVE-2014-3470, CVE-2014-0224.

More information:

• CVE-2014-0195

  Jueri Aedla discovered that a buffer overflow in processing DTLS fragments could lead to the execution of arbitrary code or denial of service.

• CVE-2014-0221

  Imre Rad discovered the processing of DTLS hello packets is susceptible to denial of service.

• CVE-2014-0224

  KIKUCHI Masashi discovered that carefully crafted handshakes can force the use of weak keys, resulting in potential man-in-the-middle attacks.

• CVE-2014-3470

  Felix Groebert and Ivan Fratric discovered that the implementation of anonymous ECDH ciphersuites is suspectible to denial of service.

• CVE-2014-0076

  Fix for the attack described in the paper "Recovering OpenSSL ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" Reported by Yuval Yarom and Naomi Benger.

Additional information can be found at http://www.openssl.org/news/secadv_20140605.txt

All applications linked to openssl need to be restarted. You can use the tool checkrestart from the package debian-goodies to detect affected programs or reboot your system.

It's important that you upgrade the libssl0.9.8 package and not just the openssl package.

For Debian 6 Squeeze, these issues have been fixed in openssl version 0.9.8o-4squeeze15