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RedHat Security Advisory RHSA-2009:1232

🗓️ 02 Sep 2009 00:00:00Reported by Copyright (c) 2009 E-Soft Inc. http://www.securityspace.comType 
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GnuTLS vulnerability in handling NULL characters in X.509 certificates

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Code
# OpenVAS Vulnerability Test
# $Id: RHSA_2009_1232.nasl 6683 2017-07-12 09:41:57Z cfischer $
# Description: Auto-generated from advisory RHSA-2009:1232 ()
#
# Authors:
# Thomas Reinke <[email protected]>
#
# Copyright:
# Copyright (c) 2009 E-Soft Inc. http://www.securityspace.com
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (c) the respective author(s)
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2,
# or at your option, GNU General Public License version 3,
# as published by the Free Software Foundation
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#

include("revisions-lib.inc");
tag_summary = "The remote host is missing updates announced in
advisory RHSA-2009:1232.

The GnuTLS library provides support for cryptographic algorithms and for
protocols such as Transport Layer Security (TLS).

A flaw was discovered in the way GnuTLS handles NULL characters in certain
fields of X.509 certificates. If an attacker is able to get a
carefully-crafted certificate signed by a Certificate Authority trusted by
an application using GnuTLS, the attacker could use the certificate during
a man-in-the-middle attack and potentially confuse the application into
accepting it by mistake. (CVE-2009-2730)

Users of GnuTLS are advised to upgrade to these updated packages, which
contain a backported patch that corrects this issue.";

tag_solution = "Please note that this update is available via
Red Hat Network.  To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date";



if(description)
{
 script_id(64670);
 script_version("$Revision: 6683 $");
 script_tag(name:"last_modification", value:"$Date: 2017-07-12 11:41:57 +0200 (Wed, 12 Jul 2017) $");
 script_tag(name:"creation_date", value:"2009-09-02 04:58:39 +0200 (Wed, 02 Sep 2009)");
 script_cve_id("CVE-2009-2730");
 script_tag(name:"cvss_base", value:"7.5");
 script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
 script_name("RedHat Security Advisory RHSA-2009:1232");



 script_category(ACT_GATHER_INFO);

 script_copyright("Copyright (c) 2009 E-Soft Inc. http://www.securityspace.com");
 script_family("Red Hat Local Security Checks");
 script_dependencies("gather-package-list.nasl");
 script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms");
 script_tag(name : "solution" , value : tag_solution);
 script_tag(name : "summary" , value : tag_summary);
 script_tag(name:"qod_type", value:"package");
 script_tag(name:"solution_type", value:"VendorFix");
 script_xref(name : "URL" , value : "http://rhn.redhat.com/errata/RHSA-2009-1232.html");
 script_xref(name : "URL" , value : "http://www.redhat.com/security/updates/classification/#moderate");
 exit(0);
}

#
# The script code starts here
#

include("pkg-lib-rpm.inc");

res = "";
report = "";
if ((res = isrpmvuln(pkg:"gnutls", rpm:"gnutls~1.0.20~4.el4_8.3", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"gnutls-debuginfo", rpm:"gnutls-debuginfo~1.0.20~4.el4_8.3", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"gnutls-devel", rpm:"gnutls-devel~1.0.20~4.el4_8.3", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"gnutls", rpm:"gnutls~1.4.1~3.el5_3.5", rls:"RHENT_5")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"gnutls-debuginfo", rpm:"gnutls-debuginfo~1.4.1~3.el5_3.5", rls:"RHENT_5")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"gnutls-utils", rpm:"gnutls-utils~1.4.1~3.el5_3.5", rls:"RHENT_5")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"gnutls-devel", rpm:"gnutls-devel~1.4.1~3.el5_3.5", rls:"RHENT_5")) != NULL) {
    report += res;
}

if (report != "") {
    security_message(data:report);
} else if (__pkg_match) {
    exit(99); # Not vulnerable.
}

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