CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
Percentile
83.2%
From Red Hat Security Advisory 2013:1868 :
Updated xorg-x11-server packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
X.Org is an open source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon.
An integer overflow, which led to a heap-based buffer overflow, was found in the way X.Org server handled trapezoids. A malicious, authorized client could use this flaw to crash the X.Org server or, potentially, execute arbitrary code with root privileges.
(CVE-2013-6424)
All xorg-x11-server users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2013:1868 and
# Oracle Linux Security Advisory ELSA-2013-1868 respectively.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(71610);
script_version("1.13");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2013-6424");
script_bugtraq_id(64127);
script_xref(name:"RHSA", value:"2013:1868");
script_name(english:"Oracle Linux 5 / 6 : xorg-x11-server (ELSA-2013-1868)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote Oracle Linux host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"From Red Hat Security Advisory 2013:1868 :
Updated xorg-x11-server packages that fix one security issue are now
available for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System
(CVSS) base score, which gives a detailed severity rating, is
available from the CVE link in the References section.
X.Org is an open source implementation of the X Window System. It
provides the basic low-level functionality that full-fledged graphical
user interfaces are designed upon.
An integer overflow, which led to a heap-based buffer overflow, was
found in the way X.Org server handled trapezoids. A malicious,
authorized client could use this flaw to crash the X.Org server or,
potentially, execute arbitrary code with root privileges.
(CVE-2013-6424)
All xorg-x11-server users are advised to upgrade to these updated
packages, which contain a backported patch to correct this issue."
);
script_set_attribute(
attribute:"see_also",
value:"https://oss.oracle.com/pipermail/el-errata/2013-December/003898.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://oss.oracle.com/pipermail/el-errata/2013-December/003899.html"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected xorg-x11-server packages."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xorg-x11-server-Xdmx");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xorg-x11-server-Xephyr");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xorg-x11-server-Xnest");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xorg-x11-server-Xorg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xorg-x11-server-Xvfb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xorg-x11-server-Xvnc-source");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xorg-x11-server-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xorg-x11-server-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xorg-x11-server-sdk");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:xorg-x11-server-source");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:6");
script_set_attribute(attribute:"vuln_publication_date", value:"2014/01/18");
script_set_attribute(attribute:"patch_publication_date", value:"2013/12/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/23");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2013-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Oracle Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^(5|6)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 5 / 6", "Oracle Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);
flag = 0;
if (rpm_check(release:"EL5", reference:"xorg-x11-server-Xdmx-1.1.1-48.101.0.1.el5_10.2")) flag++;
if (rpm_check(release:"EL5", reference:"xorg-x11-server-Xephyr-1.1.1-48.101.0.1.el5_10.2")) flag++;
if (rpm_check(release:"EL5", reference:"xorg-x11-server-Xnest-1.1.1-48.101.0.1.el5_10.2")) flag++;
if (rpm_check(release:"EL5", reference:"xorg-x11-server-Xorg-1.1.1-48.101.0.1.el5_10.2")) flag++;
if (rpm_check(release:"EL5", reference:"xorg-x11-server-Xvfb-1.1.1-48.101.0.1.el5_10.2")) flag++;
if (rpm_check(release:"EL5", reference:"xorg-x11-server-Xvnc-source-1.1.1-48.101.0.1.el5_10.2")) flag++;
if (rpm_check(release:"EL5", reference:"xorg-x11-server-sdk-1.1.1-48.101.0.1.el5_10.2")) flag++;
if (rpm_check(release:"EL6", reference:"xorg-x11-server-Xdmx-1.13.0-23.1.el6_5")) flag++;
if (rpm_check(release:"EL6", reference:"xorg-x11-server-Xephyr-1.13.0-23.1.el6_5")) flag++;
if (rpm_check(release:"EL6", reference:"xorg-x11-server-Xnest-1.13.0-23.1.el6_5")) flag++;
if (rpm_check(release:"EL6", reference:"xorg-x11-server-Xorg-1.13.0-23.1.el6_5")) flag++;
if (rpm_check(release:"EL6", reference:"xorg-x11-server-Xvfb-1.13.0-23.1.el6_5")) flag++;
if (rpm_check(release:"EL6", reference:"xorg-x11-server-common-1.13.0-23.1.el6_5")) flag++;
if (rpm_check(release:"EL6", reference:"xorg-x11-server-devel-1.13.0-23.1.el6_5")) flag++;
if (rpm_check(release:"EL6", reference:"xorg-x11-server-source-1.13.0-23.1.el6_5")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xorg-x11-server-Xdmx / xorg-x11-server-Xephyr / etc");
}