From Red Hat Security Advisory 2014:0018 :
Updated libXfont 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.
The libXfont packages provide the X.Org libXfont runtime library.
X.Org is an open source implementation of the X Window System.
A stack-based buffer overflow flaw was found in the way the libXfont library parsed Glyph Bitmap Distribution Format (BDF) fonts. A malicious, local user could exploit this issue to potentially execute arbitrary code with the privileges of the X.Org server.
(CVE-2013-6462)
Users of libXfont should upgrade to these updated packages, which contain a backported patch to resolve this issue. All running X.Org server instances must be restarted for the update to take effect.
#%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-2014:0018 and
# Oracle Linux Security Advisory ELSA-2014-0018 respectively.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(71908);
script_version("1.12");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2013-6462");
script_bugtraq_id(64694);
script_xref(name:"RHSA", value:"2014:0018");
script_name(english:"Oracle Linux 5 / 6 : libxfont (ELSA-2014-0018)");
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 2014:0018 :
Updated libXfont 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.
The libXfont packages provide the X.Org libXfont runtime library.
X.Org is an open source implementation of the X Window System.
A stack-based buffer overflow flaw was found in the way the libXfont
library parsed Glyph Bitmap Distribution Format (BDF) fonts. A
malicious, local user could exploit this issue to potentially execute
arbitrary code with the privileges of the X.Org server.
(CVE-2013-6462)
Users of libXfont should upgrade to these updated packages, which
contain a backported patch to resolve this issue. All running X.Org
server instances must be restarted for the update to take effect."
);
script_set_attribute(
attribute:"see_also",
value:"https://oss.oracle.com/pipermail/el-errata/2014-January/003910.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://oss.oracle.com/pipermail/el-errata/2014-January/003911.html"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected libxfont packages."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploit_framework_core", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libXfont");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libXfont-devel");
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:"2014/01/09");
script_set_attribute(attribute:"patch_publication_date", value:"2014/01/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2014/01/12");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2014-2021 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:"libXfont-1.2.2-1.0.5.el5_10")) flag++;
if (rpm_check(release:"EL5", reference:"libXfont-devel-1.2.2-1.0.5.el5_10")) flag++;
if (rpm_check(release:"EL6", reference:"libXfont-1.4.5-3.el6_5")) flag++;
if (rpm_check(release:"EL6", reference:"libXfont-devel-1.4.5-3.el6_5")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libXfont / libXfont-devel");
}