Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : gnupg, gnupg2 vulnerabilities (USN-2554-1)

Ubuntu Security Notice (C) 2015-2016 Canonical, Inc. / NASL script (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

Daniel Genkin, Lev Pachmanov, Itamar Pipman, and Eran Tromer
discovered that GnuPG was susceptible to an attack via physical side
channels. A local attacker could use this attack to possibly recover
private keys. (CVE-2014-3591)

Daniel Genkin, Adi Shamir, and Eran Tromer discovered that GnuPG was
susceptible to an attack via physical side channels. A local attacker
could use this attack to possibly recover private keys.
(CVE-2015-0837)

Hanno Bock discovered that GnuPG incorrectly handled certain
malformed keyrings. If a user or automated system were tricked into
opening a malformed keyring, a remote attacker could use this issue to
cause GnuPG to crash, resulting in a denial of service, or possibly
execute arbitrary code. (CVE-2015-1606, CVE-2015-1607)

In addition, this update improves GnuPG security by validating that
the keys returned by keyservers match those requested.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected gnupg and / or gnupg2 packages.

Risk factor :

Low / CVSS Base Score : 2.1
(CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N)
CVSS Temporal Score : 1.8
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 82526 ()

Bugtraq ID: 69164
72609
72610
73064
73066

CVE ID: CVE-2014-3591
CVE-2014-5270
CVE-2015-0837
CVE-2015-1606
CVE-2015-1607

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