RHEL 5 / 6 : gnupg2 (RHSA-2013:1459)

high Nessus Plugin ID 70602

Synopsis

The remote Red Hat host is missing one or more security updates for gnupg2.

Description

The remote Redhat Enterprise Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2013:1459 advisory.

The GNU Privacy Guard (GnuPG or GPG) is a tool for encrypting data and creating digital signatures, compliant with the proposed OpenPGP Internet standard and the S/MIME standard.

A denial of service flaw was found in the way GnuPG parsed certain compressed OpenPGP packets. An attacker could use this flaw to send specially crafted input data to GnuPG, making GnuPG enter an infinite loop when parsing data. (CVE-2013-4402)

It was found that importing a corrupted public key into a GnuPG keyring database corrupted that keyring. An attacker could use this flaw to trick a local user into importing a specially crafted public key into their keyring database, causing the keyring to be corrupted and preventing its further use. (CVE-2012-6085)

It was found that GnuPG did not properly interpret the key flags in a PGP key packet. GPG could accept a key for uses not indicated by its holder.
(CVE-2013-4351)

Red Hat would like to thank Werner Koch for reporting the CVE-2013-4402 issue. Upstream acknowledges Taylor R Campbell as the original reporter.

All gnupg2 users are advised to upgrade to this updated package, which contains backported patches to correct these issues.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL gnupg2 package based on the guidance in RHSA-2013:1459.

See Also

http://www.nessus.org/u?53a79a6f

https://access.redhat.com/errata/RHSA-2013:1459

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=1010137

https://bugzilla.redhat.com/show_bug.cgi?id=1015685

https://bugzilla.redhat.com/show_bug.cgi?id=891142

Plugin Details

Severity: High

ID: 70602

File Name: redhat-RHSA-2013-1459.nasl

Version: 1.15

Type: local

Agent: unix

Published: 10/25/2013

Updated: 11/4/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.5

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

CVSS Score Source: CVE-2013-4351

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2013-4402

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:gnupg2, cpe:/o:redhat:enterprise_linux:5, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:gnupg2-smime

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 10/24/2013

Vulnerability Publication Date: 1/23/2013

Reference Information

CVE: CVE-2012-6085, CVE-2013-4351, CVE-2013-4402

BID: 57102, 62857, 62921

CWE: 20

RHSA: 2013:1459