The remote Ubuntu 16.04 ESM / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5727-1 advisory.
In emulation_proc_handler of armv8_deprecated.c, there is a possible way to corrupt memory due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-237540956References: Upstream kernel (CVE-2022-20422)
A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service. (CVE-2022-2153)
A flaw use after free in the Linux kernel NILFS file system was found in the way user triggers function security_inode_alloc to fail with following call to function nilfs_mdt_destroy. A local user could use this flaw to crash the system or potentially escalate their privileges on the system. (CVE-2022-2978)
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)
A vulnerability, which was classified as critical, has been found in Linux Kernel. Affected by this issue is the function tst_timer of the file drivers/atm/idt77252.c of the component IPsec. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. VDB-211934 is the identifier assigned to this vulnerability. (CVE-2022-3635)
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)
drivers/scsi/stex.c in the Linux kernel through 5.19.9 allows local users to obtain sensitive information from kernel memory because stex_queuecommand_lck lacks a memset for the PASSTHRU_CMD case.
(CVE-2022-40768)
Note that Nessus has not tested for these issues but has instead relied only on the application’s 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-5727-1. 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(167770);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/09");
script_cve_id(
"CVE-2022-2153",
"CVE-2022-2978",
"CVE-2022-3028",
"CVE-2022-3635",
"CVE-2022-20422",
"CVE-2022-36879",
"CVE-2022-40768"
);
script_xref(name:"USN", value:"5727-1");
script_name(english:"Ubuntu 16.04 ESM / 18.04 LTS : Linux kernel vulnerabilities (USN-5727-1)");
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 16.04 ESM / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as
referenced in the USN-5727-1 advisory.
- In emulation_proc_handler of armv8_deprecated.c, there is a possible way to corrupt memory due to a race
condition. This could lead to local escalation of privilege with no additional execution privileges
needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid
ID: A-237540956References: Upstream kernel (CVE-2022-20422)
- A flaw was found in the Linux kernel's KVM when attempting to set a SynIC IRQ. This issue makes it
possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This
flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel
oops condition that results in a denial of service. (CVE-2022-2153)
- A flaw use after free in the Linux kernel NILFS file system was found in the way user triggers function
security_inode_alloc to fail with following call to function nilfs_mdt_destroy. A local user could use
this flaw to crash the system or potentially escalate their privileges on the system. (CVE-2022-2978)
- 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)
- A vulnerability, which was classified as critical, has been found in Linux Kernel. Affected by this issue
is the function tst_timer of the file drivers/atm/idt77252.c of the component IPsec. The manipulation
leads to use after free. It is recommended to apply a patch to fix this issue. VDB-211934 is the
identifier assigned to this vulnerability. (CVE-2022-3635)
- 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)
- drivers/scsi/stex.c in the Linux kernel through 5.19.9 allows local users to obtain sensitive information
from kernel memory because stex_queuecommand_lck lacks a memset for the PASSTHRU_CMD case.
(CVE-2022-40768)
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-5727-1");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
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: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-2022-2978");
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:"2022/07/27");
script_set_attribute(attribute:"patch_publication_date", value:"2022/11/16");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/11/17");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:esm");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1055-dell300x");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1108-oracle");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1121-raspi2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1129-kvm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1139-snapdragon");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1143-aws");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1143-aws-hwe");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-197-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-197-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-197-lowlatency");
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) 2022-2024 Canonical, Inc. / NASL script (C) 2022-2024 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 (! ('16.04' >< os_release || '18.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04', '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 = {
'16.04': {
'4.15.0': {
'generic': '4.15.0-197',
'lowlatency': '4.15.0-197',
'oracle': '4.15.0-1108',
'aws': '4.15.0-1143',
'aws-hwe': '4.15.0-1143'
}
},
'18.04': {
'4.15.0': {
'generic': '4.15.0-197',
'generic-lpae': '4.15.0-197',
'lowlatency': '4.15.0-197',
'dell300x': '4.15.0-1055',
'oracle': '4.15.0-1108',
'raspi2': '4.15.0-1121',
'kvm': '4.15.0-1129',
'snapdragon': '4.15.0-1139',
'aws': '4.15.0-1143'
}
}
};
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-5727-1');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2022-2153', 'CVE-2022-2978', 'CVE-2022-3028', 'CVE-2022-3635', 'CVE-2022-20422', 'CVE-2022-36879', 'CVE-2022-40768');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-5727-1');
}
else
{
extra = extra + ksplice_reporting_text();
}
}
if (extra) {
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : extra
);
exit(0);
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 16.04 | cpe:/o:canonical:ubuntu_linux:16.04:-:esm |
canonical | ubuntu_linux | 18.04 | cpe:/o:canonical:ubuntu_linux:18.04:-:lts |
canonical | ubuntu_linux | linux-image-4.15.0-1055-dell300x | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1055-dell300x |
canonical | ubuntu_linux | linux-image-4.15.0-1108-oracle | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1108-oracle |
canonical | ubuntu_linux | linux-image-4.15.0-1121-raspi2 | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1121-raspi2 |
canonical | ubuntu_linux | linux-image-4.15.0-1129-kvm | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1129-kvm |
canonical | ubuntu_linux | linux-image-4.15.0-1139-snapdragon | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1139-snapdragon |
canonical | ubuntu_linux | linux-image-4.15.0-1143-aws | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1143-aws |
canonical | ubuntu_linux | linux-image-4.15.0-1143-aws-hwe | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1143-aws-hwe |
canonical | ubuntu_linux | linux-image-4.15.0-197-generic | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-197-generic |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20422
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2153
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2978
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3028
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3635
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36879
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-40768
ubuntu.com/security/notices/USN-5727-1