9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.3 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
32.6%
The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6415-1 advisory.
A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, potentially leading to information disclosure. (CVE-2023-20569)
Improper access control in the IntelĀ® Ethernet Controller RDMA driver for linux before version 1.9.30 may allow an unauthenticated user to potentially enable escalation of privilege via network access.
(CVE-2023-25775)
An issue was discovered in the USB subsystem in the Linux kernel through 6.4.2. There is an out-of-bounds and crash in read_descriptors in drivers/usb/core/sysfs.c. (CVE-2023-37453)
A flaw was found in the Linux kernelās IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service. (CVE-2023-3772)
A flaw was found in the Linux kernelās IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to cause a 4 byte out-of-bounds read of XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data to userspace. (CVE-2023-3773)
An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the h->nets
array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash the system or potentially escalate their privileges on the system. (CVE-2023-42753)
A use-after-free vulnerability in the Linux kernelās af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peerās recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c. (CVE-2023-4622)
A use-after-free vulnerability in the Linux kernelās net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free. We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f. (CVE-2023-4623)
Note that Nessus has not tested for these issues but has instead relied only on the applicationās self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-6415-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##
include('compat.inc');
if (description)
{
script_id(182557);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/09");
script_cve_id(
"CVE-2023-3772",
"CVE-2023-3773",
"CVE-2023-4622",
"CVE-2023-4623",
"CVE-2023-20569",
"CVE-2023-25775",
"CVE-2023-37453",
"CVE-2023-42753"
);
script_xref(name:"USN", value:"6415-1");
script_name(english:"Ubuntu 22.04 LTS : Linux kernel (OEM) vulnerabilities (USN-6415-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in
the USN-6415-1 advisory.
- A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address
prediction. This may result in speculative execution at an attacker-controlled address, potentially
leading to information disclosure. (CVE-2023-20569)
- Improper access control in the Intel(R) Ethernet Controller RDMA driver for linux before version 1.9.30
may allow an unauthenticated user to potentially enable escalation of privilege via network access.
(CVE-2023-25775)
- An issue was discovered in the USB subsystem in the Linux kernel through 6.4.2. There is an out-of-bounds
and crash in read_descriptors in drivers/usb/core/sysfs.c. (CVE-2023-37453)
- A flaw was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem). This issue
may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in
xfrm_update_ae_params(), leading to a possible kernel crash and denial of service. (CVE-2023-3772)
- A flaw was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem). This issue
may allow a malicious user with CAP_NET_ADMIN privileges to cause a 4 byte out-of-bounds read of
XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data
to userspace. (CVE-2023-3773)
- An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro
could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to
arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash
the system or potentially escalate their privileges on the system. (CVE-2023-42753)
- A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local
privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's
recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an
skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend
upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c. (CVE-2023-4622)
- A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control)
component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve
(i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call
vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling
pointer that can cause a use-after-free. We recommend upgrading past commit
b3d26c5702c7d6c45456326e56d2ccf3f103e60f. (CVE-2023-4623)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-6415-1");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/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-2023-25775");
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:"2023/07/06");
script_set_attribute(attribute:"patch_publication_date", value:"2023/10/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/10/04");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-6.1.0-1023-oem");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2023-2024 Canonical, Inc. / NASL script (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
include('ksplice.inc');
if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('22.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 22.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) 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$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);
var kernel_mappings = {
'22.04': {
'6.1.0': {
'oem': '6.1.0-1023'
}
}
};
var host_kernel_release = get_kb_item('Host/uptrack-uname-r');
if (empty_or_null(host_kernel_release)) host_kernel_release = get_kb_item_or_exit('Host/uname-r');
var host_kernel_base_version = get_kb_item_or_exit('Host/Debian/kernel-base-version');
var host_kernel_type = get_kb_item_or_exit('Host/Debian/kernel-type');
if(empty_or_null(kernel_mappings[os_release][host_kernel_base_version][host_kernel_type])) audit(AUDIT_INST_VER_NOT_VULN, 'kernel ' + host_kernel_release);
var extra = '';
var kernel_fixed_version = kernel_mappings[os_release][host_kernel_base_version][host_kernel_type] + "-" + host_kernel_type;
if (deb_ver_cmp(ver1:host_kernel_release, ver2:kernel_fixed_version) < 0)
{
extra = extra + 'Running Kernel level of ' + host_kernel_release + ' does not meet the minimum fixed level of ' + kernel_fixed_version + ' for this advisory.\n\n';
}
else
{
audit(AUDIT_PATCH_INSTALLED, 'Kernel package for USN-6415-1');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2023-3772', 'CVE-2023-3773', 'CVE-2023-4622', 'CVE-2023-4623', 'CVE-2023-20569', 'CVE-2023-25775', 'CVE-2023-37453', 'CVE-2023-42753');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-6415-1');
}
else
{
extra = extra + ksplice_reporting_text();
}
}
if (extra) {
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : extra
);
exit(0);
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 22.04 | cpe:/o:canonical:ubuntu_linux:22.04:-:lts |
canonical | ubuntu_linux | linux-image-6.1.0-1023-oem | p-cpe:/a:canonical:ubuntu_linux:linux-image-6.1.0-1023-oem |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20569
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-25775
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-37453
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3772
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3773
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42753
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4622
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4623
ubuntu.com/security/notices/USN-6415-1
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.3 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
32.6%