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. These xorg-x11 packages also provide the X.Org libXfont runtime library.
A buffer overflow flaw was found in the way the libXfont library, used by the X.Org server, handled malformed font files compressed using UNIX compress. A malicious, local user could exploit this issue to potentially execute arbitrary code with the privileges of the X.Org server. (CVE-2011-2895)
Users of xorg-x11 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 is (C) Scientific Linux.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(61109);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2011-2895");
script_name(english:"Scientific Linux Security Update : xorg-x11 on SL4.x i386/x86_64");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Scientific Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"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. These xorg-x11 packages also
provide the X.Org libXfont runtime library.
A buffer overflow flaw was found in the way the libXfont library, used
by the X.Org server, handled malformed font files compressed using
UNIX compress. A malicious, local user could exploit this issue to
potentially execute arbitrary code with the privileges of the X.Org
server. (CVE-2011-2895)
Users of xorg-x11 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."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1108&L=scientific-linux-errata&T=0&P=1537
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?22cfcd5c"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"patch_publication_date", value:"2011/08/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Scientific Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "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);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
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 (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL4", reference:"xorg-x11-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-Mesa-libGL-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-Mesa-libGLU-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-Xdmx-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-Xnest-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-Xvfb-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-deprecated-libs-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-deprecated-libs-devel-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-devel-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-doc-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-font-utils-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-libs-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-sdk-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-tools-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-twm-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-xauth-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-xdm-6.8.2-1.EL.69")) flag++;
if (rpm_check(release:"SL4", reference:"xorg-x11-xfs-6.8.2-1.EL.69")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | x-cpe:/o:fermilab:scientific_linux |