According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
A flaw was found in the Linux kernel’s implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands to the /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it can be further used to defeat existing kernel protection mechanisms. (CVE-2021-3923)
A double-free memory flaw was found in the Linux kernel. The Intel GVT-g graphics driver triggers VGA card system resource overload, causing a fail in the intel_gvt_dma_map_guest_page function. This issue could allow a local user to crash the system. (CVE-2022-3707)
A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action ‘mirred’) a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition. (CVE-2022-4269)
The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ib_prctl_set function updates the Thread Information Flags (TIFs) for the task and updates the SPEC_CTRL MSR on the function __speculation_ctrl_update, but the IBPB is only issued on the next schedule, when the TIF bits are checked. This leaves the victim vulnerable to values already injected on the BTB, prior to the prctl syscall. The patch that added the support for the conditional mitigation via prctl (ib_prctl_set) dates back to the kernel 4.9.176. We recommend upgrading past commit a664ec9158eeddd75121d39c9a0758016097fa96 (CVE-2023-0045)
A deadlock flaw was found in the Linux kernel’s BPF subsystem. This flaw allows a local user to potentially crash the system. (CVE-2023-0160)
There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege. There is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock. When CONFIG_TLS is enabled, user can install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is created from the listener, the context is inherited and vulnerable. The setsockopt TCP_ULP operation does not require any privilege. We recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c (CVE-2023-0461)
A memory corruption flaw was found in the Linux kernel’s human interface device (HID) subsystem in how a user inserts a malicious USB device. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2023-1073)
A memory leak flaw was found in the Linux kernel’s Stream Control Transmission Protocol. This issue may occur when a user starts a malicious networking service and someone connects to this service. This could allow a local user to starve resources, causing a denial of service. (CVE-2023-1074)
A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAP_NET_ADMIN, it may not always be the case, e.g., a non-root user only having that capability. This would make tun/tap sockets being incorrectly treated in filtering/routing decisions, possibly bypassing network filters. (CVE-2023-1076)
A flaw use after free in the Linux kernel integrated infrared receiver/transceiver driver was found in the way user detaching rc device. A local user could use this flaw to crash the system or potentially escalate their privileges on the system. (CVE-2023-1118)
Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use- after-free when ‘tcf_exts_exec()’ is called with the destroyed tcf_ext. A local attacker user can use this vulnerability to elevate its privileges to root. This issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2. (CVE-2023-1281)
A race problem was found in fs/proc/task_mmu.c in the memory management sub-component in the Linux kernel.
This issue may allow a local attacker with user privilege to cause a denial of service. (CVE-2023-1582)
A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the system, and could even lead to a kernel information leak problem. (CVE-2023-1838)
do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading to a race condition (with a resultant use-after-free or NULL pointer dereference). (CVE-2023-28466)
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(178994);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/28");
script_cve_id(
"CVE-2021-3923",
"CVE-2022-3707",
"CVE-2022-4269",
"CVE-2023-0045",
"CVE-2023-0160",
"CVE-2023-0461",
"CVE-2023-1073",
"CVE-2023-1074",
"CVE-2023-1076",
"CVE-2023-1118",
"CVE-2023-1281",
"CVE-2023-1582",
"CVE-2023-1838",
"CVE-2023-28466"
);
script_name(english:"EulerOS Virtualization 2.10.1 : kernel (EulerOS-SA-2023-2463)");
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 flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a
privileged local account can leak kernel stack information when issuing commands to the
/dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it
can be further used to defeat existing kernel protection mechanisms. (CVE-2021-3923)
- A double-free memory flaw was found in the Linux kernel. The Intel GVT-g graphics driver triggers VGA card
system resource overload, causing a fail in the intel_gvt_dma_map_guest_page function. This issue could
allow a local user to crash the system. (CVE-2022-3707)
- A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking
configuration (redirecting egress packets to ingress using TC action 'mirred') a local unprivileged user
could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a
retransmission, resulting in a denial of service condition. (CVE-2022-4269)
- The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The
ib_prctl_set function updates the Thread Information Flags (TIFs) for the task and updates the SPEC_CTRL
MSR on the function __speculation_ctrl_update, but the IBPB is only issued on the next schedule, when the
TIF bits are checked. This leaves the victim vulnerable to values already injected on the BTB, prior to
the prctl syscall. The patch that added the support for the conditional mitigation via prctl
(ib_prctl_set) dates back to the kernel 4.9.176. We recommend upgrading past commit
a664ec9158eeddd75121d39c9a0758016097fa96 (CVE-2023-0045)
- A deadlock flaw was found in the Linux kernel's BPF subsystem. This flaw allows a local user to
potentially crash the system. (CVE-2023-0160)
- There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local
privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or
CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege. There is a
use-after-free bug of icsk_ulp_data of a struct inet_connection_sock. When CONFIG_TLS is enabled, user can
install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this
socket is disconnected and reused as a listener. If a new socket is created from the listener, the context
is inherited and vulnerable. The setsockopt TCP_ULP operation does not require any privilege. We recommend
upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c (CVE-2023-0461)
- A memory corruption flaw was found in the Linux kernel's human interface device (HID) subsystem in how a
user inserts a malicious USB device. This flaw allows a local user to crash or potentially escalate their
privileges on the system. (CVE-2023-1073)
- A memory leak flaw was found in the Linux kernel's Stream Control Transmission Protocol. This issue may
occur when a user starts a malicious networking service and someone connects to this service. This could
allow a local user to starve resources, causing a denial of service. (CVE-2023-1074)
- A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a
type confusion in their initialization function. While it will be often correct, as tuntap devices require
CAP_NET_ADMIN, it may not always be the case, e.g., a non-root user only having that capability. This
would make tun/tap sockets being incorrectly treated in filtering/routing decisions, possibly bypassing
network filters. (CVE-2023-1076)
- A flaw use after free in the Linux kernel integrated infrared receiver/transceiver driver was found in the
way user detaching rc device. A local user could use this flaw to crash the system or potentially escalate
their privileges on the system. (CVE-2023-1118)
- Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege
Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-
after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this
vulnerability to elevate its privileges to root. This issue affects Linux Kernel: from 4.14 before git
commit ee059170b1f7e94e55fa6cadee544e176a6e59c2. (CVE-2023-1281)
- A race problem was found in fs/proc/task_mmu.c in the memory management sub-component in the Linux kernel.
This issue may allow a local attacker with user privilege to cause a denial of service. (CVE-2023-1582)
- A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network
subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the
system, and could even lead to a kernel information leak problem. (CVE-2023-1838)
- do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading
to a race condition (with a resultant use-after-free or NULL pointer dereference). (CVE-2023-28466)
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-2023-2463
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?35f894d3");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-0045");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-1281");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/06/04");
script_set_attribute(attribute:"patch_publication_date", value:"2023/07/28");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/07/28");
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-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:2.10.1");
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) 2023 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 != "2.10.1") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.10.1");
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 ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);
var flag = 0;
var pkgs = [
"kernel-4.19.90-vhulk2211.3.0.h1489.eulerosv2r10",
"kernel-abi-stablelists-4.19.90-vhulk2211.3.0.h1489.eulerosv2r10",
"kernel-tools-4.19.90-vhulk2211.3.0.h1489.eulerosv2r10",
"kernel-tools-libs-4.19.90-vhulk2211.3.0.h1489.eulerosv2r10",
"python3-perf-4.19.90-vhulk2211.3.0.h1489.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_HOLE,
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");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | kernel | p-cpe:/a:huawei:euleros:kernel |
huawei | euleros | kernel-abi-stablelists | p-cpe:/a:huawei:euleros:kernel-abi-stablelists |
huawei | euleros | kernel-tools | p-cpe:/a:huawei:euleros:kernel-tools |
huawei | euleros | kernel-tools-libs | p-cpe:/a:huawei:euleros:kernel-tools-libs |
huawei | euleros | python3-perf | p-cpe:/a:huawei:euleros:python3-perf |
huawei | euleros | uvp | cpe:/o:huawei:euleros:uvp:2.10.1 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3923
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3707
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-4269
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0045
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0160
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0461
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1073
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1074
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1076
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1118
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1281
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1582
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1838
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28466
www.nessus.org/u?35f894d3