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
AI Score
Confidence
High
EPSS
Percentile
82.9%
According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
A race condition in the Linux kernel before 5.6.2 between the VT_DISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free. (CVE-2020-36557)
Product: AndroidVersions: Android kernelAndroid ID: A-224546354References: Upstream kernel (CVE-2022-20368)
In v4l2_m2m_querybuf of v4l2-mem2mem.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
A-223375145References: Upstream kernel (CVE-2022-20369)
Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5 (CVE-2022-2503)
Non-transparent sharing of return predictor targets between contexts in some Intel® Processors may allow an authorized user to potentially enable information disclosure via local access. (CVE-2022-26373)
An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-2639)
An out-of-bounds memory access flaw was found in the Linux kernel Intel’s iSMT SMBus host controller driver in the way a user triggers the I2C_SMBUS_BLOCK_DATA (with the ioctl I2C_SMBUS) with malicious input data. This flaw allows a local user to crash the system. (CVE-2022-2873)
A flaw was found in the Linux kernel’s driver for the ASIX AX88179_178A-based USB 2.0/3.0 Gigabit Ethernet Devices. The vulnerability contains multiple out-of-bounds reads and possible out-of-bounds writes.
(CVE-2022-2964)
A race condition was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem) when multiple calls to xfrm_probe_algs occurred simultaneously. This flaw could allow a local attacker to potentially trigger an out-of-bounds write or leak kernel heap memory by performing an out-of-bounds read and copying it into a socket. (CVE-2022-3028)
The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges. (CVE-2022-36123)
An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice. (CVE-2022-36879)
nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len. (CVE-2022-36946)
kernel: nf_tables cross-table potential use-after-free may lead to local privilege escalation (CVE-2022-2586)
kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)
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 80900
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(169386);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/26");
script_cve_id(
"CVE-2020-36557",
"CVE-2022-2503",
"CVE-2022-2586",
"CVE-2022-2588",
"CVE-2022-2639",
"CVE-2022-2873",
"CVE-2022-2964",
"CVE-2022-3028",
"CVE-2022-20368",
"CVE-2022-20369",
"CVE-2022-26373",
"CVE-2022-36123",
"CVE-2022-36879",
"CVE-2022-36946"
);
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2024/07/17");
script_name(english:"EulerOS Virtualization 2.10.0 : kernel (EulerOS-SA-2022-2906)");
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 race condition in the Linux kernel before 5.6.2 between the VT_DISALLOCATE ioctl and closing/opening of
ttys could lead to a use-after-free. (CVE-2020-36557)
- Product: AndroidVersions: Android kernelAndroid ID: A-224546354References: Upstream kernel
(CVE-2022-20368)
- In v4l2_m2m_querybuf of v4l2-mem2mem.c, there is a possible out of bounds write due to improper input
validation. This could lead to local escalation of privilege with System execution privileges needed. User
interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
A-223375145References: Upstream kernel (CVE-2022-20369)
- Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to
restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently
allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass
verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and
unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for
peripherals that do not verify firmware updates. We recommend upgrading past commit
4caae58406f8ceb741603eee460d79bacca9b1b5 (CVE-2022-2503)
- Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow
an authorized user to potentially enable information disclosure via local access. (CVE-2022-26373)
- An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of
actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size()
function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This
flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-2639)
- An out-of-bounds memory access flaw was found in the Linux kernel Intel's iSMT SMBus host controller
driver in the way a user triggers the I2C_SMBUS_BLOCK_DATA (with the ioctl I2C_SMBUS) with malicious input
data. This flaw allows a local user to crash the system. (CVE-2022-2873)
- A flaw was found in the Linux kernel's driver for the ASIX AX88179_178A-based USB 2.0/3.0 Gigabit Ethernet
Devices. The vulnerability contains multiple out-of-bounds reads and possible out-of-bounds writes.
(CVE-2022-2964)
- A race condition was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem)
when multiple calls to xfrm_probe_algs occurred simultaneously. This flaw could allow a local attacker to
potentially trigger an out-of-bounds write or leak kernel heap memory by performing an out-of-bounds read
and copying it into a socket. (CVE-2022-3028)
- The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This
allows Xen PV guest OS users to cause a denial of service or gain privileges. (CVE-2022-36123)
- An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in
net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice. (CVE-2022-36879)
- nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote
attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte
nfta_payload attribute, an skb_pull can encounter a negative skb->len. (CVE-2022-36946)
- kernel: nf_tables cross-table potential use-after-free may lead to local privilege escalation
(CVE-2022-2586)
- kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation
(CVE-2022-2588)
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-2022-2906
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9f9aaa9d");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/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:"cvss_score_source", value:"CVE-2022-36123");
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:"vuln_publication_date", value:"2022/03/07");
script_set_attribute(attribute:"patch_publication_date", value:"2022/12/28");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/12/28");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bpftool");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-abi-stablelists");
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:python3-perf");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.10.0");
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) 2022-2024 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("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var _release = get_kb_item("Host/EulerOS/release");
if (isnull(_release) || _release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.10.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.10.0");
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "x86" >!< cpu) audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);
var flag = 0;
var pkgs = [
"bpftool-4.18.0-147.5.2.13.h996.eulerosv2r10",
"kernel-4.18.0-147.5.2.13.h996.eulerosv2r10",
"kernel-abi-stablelists-4.18.0-147.5.2.13.h996.eulerosv2r10",
"kernel-tools-4.18.0-147.5.2.13.h996.eulerosv2r10",
"kernel-tools-libs-4.18.0-147.5.2.13.h996.eulerosv2r10",
"python3-perf-4.18.0-147.5.2.13.h996.eulerosv2r10"
];
foreach (var 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
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36557
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20368
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20369
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2503
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2586
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2588
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26373
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2639
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2873
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2964
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3028
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36123
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36879
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36946
www.nessus.org/u?9f9aaa9d
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
AI Score
Confidence
High
EPSS
Percentile
82.9%