7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.0004 Low
EPSS
Percentile
9.5%
Security Fix(es) :
Linux kernel built with the Kernel-based Virtual Machine (CONFIG_KVM) support is vulnerable to a NULL pointer dereference flaw. It could occur on x86 platform, when emulating an undefined instruction. An attacker could use this flaw to crash the host kernel resulting in DoS.
(CVE-2016-8630, Important)
A race condition issue leading to a use-after-free flaw was found in the way the raw packet sockets implementation in the Linux kernel networking subsystem handled synchronization while creating the TPACKET_V3 ring buffer. A local user able to open a raw packet socket (requires the CAP_NET_RAW capability) could use this flaw to elevate their privileges on the system.
(CVE-2016-8655, Important)
A flaw was discovered in the Linux kernel’s implementation of VFIO. An attacker issuing an ioctl can create a situation where memory is corrupted and modify memory outside of the expected area. This may overwrite kernel memory and subvert kernel execution.
(CVE-2016-9083, Important)
The use of a kzalloc with an integer multiplication allowed an integer overflow condition to be reached in vfio_pci_intrs.c. This combined with CVE-2016-9083 may allow an attacker to craft an attack and use unallocated memory, potentially crashing the machine.
(CVE-2016-9084, Moderate)
#%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(97516);
script_version("3.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2016-8630", "CVE-2016-8655", "CVE-2016-9083", "CVE-2016-9084");
script_name(english:"Scientific Linux Security Update : kernel on SL7.x x86_64 (20170302)");
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:
"Security Fix(es) :
- Linux kernel built with the Kernel-based Virtual Machine
(CONFIG_KVM) support is vulnerable to a NULL pointer
dereference flaw. It could occur on x86 platform, when
emulating an undefined instruction. An attacker could
use this flaw to crash the host kernel resulting in DoS.
(CVE-2016-8630, Important)
- A race condition issue leading to a use-after-free flaw
was found in the way the raw packet sockets
implementation in the Linux kernel networking subsystem
handled synchronization while creating the TPACKET_V3
ring buffer. A local user able to open a raw packet
socket (requires the CAP_NET_RAW capability) could use
this flaw to elevate their privileges on the system.
(CVE-2016-8655, Important)
- A flaw was discovered in the Linux kernel's
implementation of VFIO. An attacker issuing an ioctl can
create a situation where memory is corrupted and modify
memory outside of the expected area. This may overwrite
kernel memory and subvert kernel execution.
(CVE-2016-9083, Important)
- The use of a kzalloc with an integer multiplication
allowed an integer overflow condition to be reached in
vfio_pci_intrs.c. This combined with CVE-2016-9083 may
allow an attacker to craft an attack and use unallocated
memory, potentially crashing the machine.
(CVE-2016-9084, Moderate)"
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1703&L=scientific-linux-errata&F=&S=&P=761
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?0ecfa446"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/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:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'AF_PACKET chocobo_root Privilege Escalation');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
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-abi-whitelists");
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-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-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools-libs-devel");
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:"2016/11/28");
script_set_attribute(attribute:"patch_publication_date", value:"2017/03/02");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/03/03");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 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:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", reference:"kernel-abi-whitelists-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-debug-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-debug-debuginfo-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-debug-devel-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-debuginfo-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-debuginfo-common-x86_64-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-devel-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", reference:"kernel-doc-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-headers-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-tools-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-tools-debuginfo-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-tools-libs-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kernel-tools-libs-devel-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"perf-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"perf-debuginfo-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"python-perf-3.10.0-514.10.2.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"python-perf-debuginfo-3.10.0-514.10.2.el7")) 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-abi-whitelists / kernel-debug / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | kernel | p-cpe:/a:fermilab:scientific_linux:kernel |
fermilab | scientific_linux | kernel-abi-whitelists | p-cpe:/a:fermilab:scientific_linux:kernel-abi-whitelists |
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-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-headers | p-cpe:/a:fermilab:scientific_linux:kernel-headers |
7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.0004 Low
EPSS
Percentile
9.5%