Security Information / 2017 / Security Information -- DSA-3960-1 gnupg

Debian Security Advisory

DSA-3960-1 gnupg -- security update

Date Reported:

01 Sep 2017

Affected Packages:

gnupg

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2017-7526.

More information:

Daniel J. Bernstein, Joachim Breitner, Daniel Genkin, Leon Groot Bruinderink, Nadia Heninger, Tanja Lange, Christine van Vredendaal and Yuval Yarom discovered that GnuPG is prone to a local side-channel attack allowing full key recovery for RSA-1024.

See https://eprint.iacr.org/2017/627 for details.

For the oldstable distribution (jessie), this problem has been fixed in version 1.4.18-7+deb8u4.

We recommend that you upgrade your gnupg packages.