[USN-3733-2] GnuPG vulnerability


–===============2906388172938381339==
Content-Type: multipart/signed; micalg=”pgp-sha256″;
protocol=”application/pgp-signature”; boundary=”=-Fp5yCizZLw7zZ960VTZu”

–=-Fp5yCizZLw7zZ960VTZu
Content-Type: text/plain; charset=”UTF-8″
Content-Transfer-Encoding: quoted-printable

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Ubuntu Security Notice USN-3733-2
August 15, 2018

gnupg vulnerability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 12.04 ESM

Summary:

GnuPG could be made to expose sensitive information.

Software Description:
– gnupg: GNU privacy guard – a free PGP replacement

Details:

USN-3733-1 fixed a vulnerability in GnuPG. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

=C2=A0Daniel J. Bernstein, Joachim Breitner, Daniel Genkin, Leon Groot
=C2=A0Bruinderink, Nadia Heninger, Tanja Lange, Christine van Vredendaal,
=C2=A0and Yuval Yarom discovered that GnuPG is vulnerable to a cache side-
=C2=A0channel attack. A local attacker could use this attack to recover RSA
=C2=A0private keys.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 ESM:
=C2=A0 gnupg=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A01.4.11-3ubuntu2.12
=C2=A0 gnupg-curl=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
1.4.11-3ubuntu2.12
=C2=A0 gpgv=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A01.4.11-3ubuntu2.12

In general, a standard system update will make all the necessary
changes.

References:
=C2=A0 https://usn.ubuntu.com/usn/usn-3733-2
=C2=A0 https://usn.ubuntu.com/usn/usn-3733-1
=C2=A0 CVE-2017-7526
–=-Fp5yCizZLw7zZ960VTZu
Content-Type: application/pgp-signature; name=”signature.asc”
Content-Description: This is a digitally signed message part
Content-Transfer-Encoding: 7bit

—–BEGIN PGP SIGNATURE—–
Version: GnuPG v2
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=Ghrz
—–END PGP SIGNATURE—–

–=-Fp5yCizZLw7zZ960VTZu–

–===============2906388172938381339==
Content-Type: text/plain; charset=”utf-8″
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline

LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5
LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl
IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj
dXJpdHktYW5ub3VuY2UK

–===============2906388172938381339==–