This update fixes the following security issues :
A flaw was found in the way KVM (Kernel-based Virtual Machine) initialized a guest’s registered pv_eoi (paravirtualized end-of-interrupt) indication flag when entering the guest. An unprivileged guest user could potentially use this flaw to crash the host.
(CVE-2013-1935, Important)
A missing sanity check was found in the kvm_set_memory_region() function in KVM, allowing a user-space process to register memory regions pointing to the kernel address space. A local, unprivileged user could use this flaw to escalate their privileges.
(CVE-2013-1943, Important)
A double free flaw was found in the Linux kernel’s Virtual Ethernet Tunnel driver (veth). A remote attacker could possibly use this flaw to crash a target system.
(CVE-2013-2017, Moderate)
The system must be rebooted for this 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(66884);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2013-1935", "CVE-2013-1943", "CVE-2013-2017");
script_name(english:"Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20130610)");
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:
"This update fixes the following security issues :
- A flaw was found in the way KVM (Kernel-based Virtual
Machine) initialized a guest's registered pv_eoi
(paravirtualized end-of-interrupt) indication flag when
entering the guest. An unprivileged guest user could
potentially use this flaw to crash the host.
(CVE-2013-1935, Important)
- A missing sanity check was found in the
kvm_set_memory_region() function in KVM, allowing a
user-space process to register memory regions pointing
to the kernel address space. A local, unprivileged user
could use this flaw to escalate their privileges.
(CVE-2013-1943, Important)
- A double free flaw was found in the Linux kernel's
Virtual Ethernet Tunnel driver (veth). A remote attacker
could possibly use this flaw to crash a target system.
(CVE-2013-2017, Moderate)
The system must be rebooted for this update to take effect."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1306&L=scientific-linux-errata&T=0&P=821
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?4e7a02d3"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-i686");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-x86_64");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-firmware");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:perf-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python-perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python-perf-debuginfo");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2013/05/03");
script_set_attribute(attribute:"patch_publication_date", value:"2013/06/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/06/13");
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:"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("misc_func.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");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 6.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL6", reference:"kernel-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debug-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debug-debuginfo-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debug-devel-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debuginfo-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", cpu:"i386", reference:"kernel-debuginfo-common-i686-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", cpu:"x86_64", reference:"kernel-debuginfo-common-x86_64-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-devel-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-doc-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-firmware-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-headers-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"perf-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"perf-debuginfo-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"python-perf-2.6.32-358.11.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"python-perf-debuginfo-2.6.32-358.11.1.el6")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel / kernel-debug / kernel-debug-debuginfo / kernel-debug-devel / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | kernel | p-cpe:/a:fermilab:scientific_linux:kernel |
fermilab | scientific_linux | kernel-debug | p-cpe:/a:fermilab:scientific_linux:kernel-debug |
fermilab | scientific_linux | kernel-debug-debuginfo | p-cpe:/a:fermilab:scientific_linux:kernel-debug-debuginfo |
fermilab | scientific_linux | kernel-debug-devel | p-cpe:/a:fermilab:scientific_linux:kernel-debug-devel |
fermilab | scientific_linux | kernel-debuginfo | p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo |
fermilab | scientific_linux | kernel-debuginfo-common-i686 | p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-i686 |
fermilab | scientific_linux | kernel-debuginfo-common-x86_64 | p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-x86_64 |
fermilab | scientific_linux | kernel-devel | p-cpe:/a:fermilab:scientific_linux:kernel-devel |
fermilab | scientific_linux | kernel-doc | p-cpe:/a:fermilab:scientific_linux:kernel-doc |
fermilab | scientific_linux | kernel-firmware | p-cpe:/a:fermilab:scientific_linux:kernel-firmware |