Ubuntu 20.04/22.04 LTS Linux kernel vulnerabilities (USN-5913-1). Multiple use-after-free and privilege escalation flaws
Reporter | Title | Published | Views | Family All 199 |
---|---|---|---|---|
OSV | linux-oem-5.14, linux-oem-5.17 vulnerabilities | 3 Mar 202300:28 | – | osv |
OSV | linux-oem-6.0 vulnerabilities | 3 Mar 202300:49 | – | osv |
OSV | Red Hat Security Advisory: kernel-rt security and bug fix update | 13 Sep 202421:10 | – | osv |
OSV | CVE-2022-36879 | 27 Jul 202204:15 | – | osv |
OSV | kernel-devel-6.1.0-1.1 on GA media | 15 Jun 202400:00 | – | osv |
OSV | Red Hat Security Advisory: kernel security and bug fix update | 13 Sep 202421:10 | – | osv |
OSV | linux-aws vulnerabilities | 23 Feb 202316:09 | – | osv |
OSV | linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities | 6 Mar 202323:32 | – | osv |
OSV | CVE-2023-0045 | 25 Apr 202323:15 | – | osv |
OSV | Red Hat Security Advisory: kernel security and bug fix update | 13 Sep 202421:10 | – | osv |
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-5913-1. 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(172092);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/09");
script_cve_id(
"CVE-2022-3565",
"CVE-2022-4379",
"CVE-2022-20566",
"CVE-2022-36879",
"CVE-2022-43750",
"CVE-2022-47520",
"CVE-2023-0045",
"CVE-2023-0461"
);
script_xref(name:"USN", value:"5913-1");
script_name(english:"Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel (OEM) vulnerabilities (USN-5913-1)");
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 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as
referenced in the USN-5913-1 advisory.
- In l2cap_chan_put of l2cap_core, there is a possible use after free due to improper locking. 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-165329981References:
Upstream kernel (CVE-2022-20566)
- A vulnerability, which was classified as critical, has been found in Linux Kernel. Affected by this issue
is the function del_timer of the file drivers/isdn/mISDN/l1oip_core.c of the component Bluetooth. The
manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier
of this vulnerability is VDB-211088. (CVE-2022-3565)
- 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/usb/mon/mon_bin.c in usbmon in the Linux kernel before 5.19.15 and 6.x before 6.0.1 allows a user-
space client to corrupt the monitor's internal memory. (CVE-2022-43750)
- A use-after-free vulnerability was found in __nfs42_ssc_open() in fs/nfs/nfs4file.c in the Linux kernel.
This flaw allows an attacker to conduct a remote denial (CVE-2022-4379)
- An issue was discovered in the Linux kernel before 6.0.11. Missing offset validation in
drivers/net/wireless/microchip/wilc1000/hif.c in the WILC1000 wireless driver can trigger an out-of-bounds
read when parsing a Robust Security Network (RSN) information element from a Netlink packet.
(CVE-2022-47520)
- 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)
- 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)
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-5913-1");
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: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-2023-0461");
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:"2023/03/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/03/04");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
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-5.14.0-1058-oem");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.17.0-1028-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 (! ('20.04' >< os_release || '22.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 20.04 / 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 = {
'20.04': {
'5.14.0': {
'oem': '5.14.0-1058'
}
},
'22.04': {
'5.17.0': {
'oem': '5.17.0-1028'
}
}
};
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-5913-1');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2022-3565', 'CVE-2022-4379', 'CVE-2022-20566', 'CVE-2022-36879', 'CVE-2022-43750', 'CVE-2022-47520', 'CVE-2023-0045', 'CVE-2023-0461');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-5913-1');
}
else
{
extra = extra + ksplice_reporting_text();
}
}
if (extra) {
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : extra
);
exit(0);
}
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