Debian DSA-2774-1 : gnupg2 - several vulnerabilities

medium Nessus Plugin ID 70374

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Synopsis

The remote Debian host is missing a security-related update.

Description

Two vulnerabilities were discovered in GnuPG 2, the GNU privacy guard, a free PGP replacement. The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2013-4351 When a key or subkey had its 'key flags' subpacket set to all bits off, GnuPG currently would treat the key as having all bits set. That is, where the owner wanted to indicate 'no use permitted', GnuPG would interpret it as 'all use permitted'. Such 'no use permitted' keys are rare and only used in very special circumstances.

- CVE-2013-4402 Infinite recursion in the compressed packet parser was possible with crafted input data, which may be used to cause a denial of service.

Solution

Upgrade the gnupg2 packages.

For the oldstable distribution (squeeze), these problems have been fixed in version 2.0.14-2+squeeze2.

For the stable distribution (wheezy), these problems have been fixed in version 2.0.19-2+deb7u1.

Plugin Details

Severity: Medium

ID: 70374

File Name: debian_DSA-2774.nasl

Version: 1.9

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/11/2013

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:gnupg2, cpe:/o:debian:debian_linux:6.0, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/10/2013

Reference Information

CVE: CVE-2013-4351, CVE-2013-4402

DSA: 2774

Detections

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