6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
0.012 Low
EPSS
Percentile
85.2%
According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
A division-by-zero in set_termios(), when debugging is enabled, was found in the Linux kernel. When the [io_ti] driver is loaded, a local unprivileged attacker can request incorrect high transfer speed in the change_port_settings() in the drivers/usb/serial/io_ti.c so that the divisor value becomes zero and causes a system crash resulting in a denial of service.i1/4^CVE-2017-18360i1/4%0
A flaw was found In the Linux kernel, through version 4.19.6, where a local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c.
An attacker could corrupt memory and possibly escalate privileges if the attacker is able to have physical access to the system.i1/4^CVE-2018-19824i1/4%0
Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused.i1/4^CVE-2018-18281i1/4%0
A use-after-free flaw can occur in the Linux kernel due to a race condition between packet_do_bind() and packet_notifier() functions called for an AF_PACKET socket. An unprivileged, local user could use this flaw to induce kernel memory corruption on the system, leading to an unresponsive system or to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.i1/4^CVE-2018-18559i1/4%0
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(123721);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/05");
script_cve_id(
"CVE-2017-18360",
"CVE-2018-18281",
"CVE-2018-18559",
"CVE-2018-19824"
);
script_name(english:"EulerOS Virtualization 2.5.4 : kernel (EulerOS-SA-2019-1253)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing multiple security
updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the kernel packages installed, the
EulerOS Virtualization installation on the remote host is affected by
the following vulnerabilities :
- A division-by-zero in set_termios(), when debugging is
enabled, was found in the Linux kernel. When the
[io_ti] driver is loaded, a local unprivileged attacker
can request incorrect high transfer speed in the
change_port_settings() in the
drivers/usb/serial/io_ti.c so that the divisor value
becomes zero and causes a system crash resulting in a
denial of service.i1/4^CVE-2017-18360i1/4%0
- A flaw was found In the Linux kernel, through version
4.19.6, where a local user could exploit a
use-after-free in the ALSA driver by supplying a
malicious USB Sound device (with zero interfaces) that
is mishandled in usb_audio_probe in sound/usb/card.c.
An attacker could corrupt memory and possibly escalate
privileges if the attacker is able to have physical
access to the system.i1/4^CVE-2018-19824i1/4%0
- Since Linux kernel version 3.2, the mremap() syscall
performs TLB flushes after dropping pagetable locks. If
a syscall such as ftruncate() removes entries from the
pagetables of a task that is in the middle of mremap(),
a stale TLB entry can remain for a short time that
permits access to a physical page after it has been
released back to the page allocator and
reused.i1/4^CVE-2018-18281i1/4%0
- A use-after-free flaw can occur in the Linux kernel due
to a race condition between packet_do_bind() and
packet_notifier() functions called for an AF_PACKET
socket. An unprivileged, local user could use this flaw
to induce kernel memory corruption on the system,
leading to an unresponsive system or to a crash. Due to
the nature of the flaw, privilege escalation cannot be
fully ruled out.i1/4^CVE-2018-18559i1/4%0
Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
# https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-1253
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b1ef0b72");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-18559");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"patch_publication_date", value:"2019/04/02");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/04");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs-devel");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.5.4");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/uvp_version");
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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.5.4") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.5.4");
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);
flag = 0;
pkgs = ["kernel-3.10.0-862.14.1.1_62",
"kernel-devel-3.10.0-862.14.1.1_62",
"kernel-headers-3.10.0-862.14.1.1_62",
"kernel-tools-3.10.0-862.14.1.1_62",
"kernel-tools-libs-3.10.0-862.14.1.1_62",
"kernel-tools-libs-devel-3.10.0-862.14.1.1_62"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
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");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | kernel-headers | p-cpe:/a:huawei:euleros:kernel-headers |
huawei | euleros | kernel-tools-libs-devel | p-cpe:/a:huawei:euleros:kernel-tools-libs-devel |
huawei | euleros | kernel-tools-libs | p-cpe:/a:huawei:euleros:kernel-tools-libs |
huawei | euleros | uvp | cpe:/o:huawei:euleros:uvp:2.5.4 |
huawei | euleros | kernel-tools | p-cpe:/a:huawei:euleros:kernel-tools |
huawei | euleros | kernel-devel | p-cpe:/a:huawei:euleros:kernel-devel |
huawei | euleros | kernel | p-cpe:/a:huawei:euleros:kernel |
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
0.012 Low
EPSS
Percentile
85.2%