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
AI Score
Confidence
High
EPSS
Percentile
16.8%
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-6956-1 advisory.
Benedict Schlter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious #VC interrupts and compromise the security guarantees of AMD SEV-SNP.
This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to expose sensitive information or possibly execute arbitrary code in the trusted execution environment.
(CVE-2024-25742)
Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:
- ARM32 architecture;
- ARM64 architecture;
- Block layer subsystem;
- Bluetooth drivers;
- Clock framework and drivers;
- FireWire subsystem;
- GPU drivers;
- InfiniBand drivers;
- Multiple devices driver;
- EEPROM drivers;
- Network drivers;
- Pin controllers subsystem;
- Remote Processor subsystem;
- S/390 drivers;
- SCSI drivers;
- TTY drivers;
- 9P distributed file system;
- Network file system client;
- SMB network file system;
- Socket messages infrastructure;
- Dynamic debug library;
- Bluetooth subsystem;
- Networking core;
- IPv4 networking;
- IPv6 networking;
- Multipath TCP;
- Netfilter;
- NSH protocol;
- Phonet protocol;
- TIPC protocol;
- Wireless networking;
- Key management;
- ALSA framework;
- HD-audio driver; (CVE-2024-36933, CVE-2024-36960, CVE-2024-26936, CVE-2024-36975, CVE-2023-52882, CVE-2024-27401, CVE-2024-36929, CVE-2024-36939, CVE-2024-35947, CVE-2024-36883, CVE-2024-26886, CVE-2024-36952, CVE-2024-36950, CVE-2024-36940, CVE-2024-36897, CVE-2023-52585, CVE-2024-26900, CVE-2024-36959, CVE-2024-36928, CVE-2024-36938, CVE-2024-36016, CVE-2024-36965, CVE-2024-36967, CVE-2024-36889, CVE-2024-36905, CVE-2024-36969, CVE-2024-36916, CVE-2024-36954, CVE-2024-27017, CVE-2024-36941, CVE-2024-36957, CVE-2024-27399, CVE-2024-36937, CVE-2024-36955, CVE-2024-38600, CVE-2023-52752, CVE-2024-36953, CVE-2024-26980, CVE-2024-36902, CVE-2024-26952, CVE-2024-36904, CVE-2024-36964, CVE-2024-36946, CVE-2024-36880, CVE-2024-36906, CVE-2024-36947, CVE-2024-36886, CVE-2024-36934, CVE-2024-35848, CVE-2024-36919, CVE-2024-36017, CVE-2024-36944, CVE-2024-36931, CVE-2024-27398)
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
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-6956-1. 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(205412);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/27");
script_cve_id(
"CVE-2023-52585",
"CVE-2023-52752",
"CVE-2023-52882",
"CVE-2024-25742",
"CVE-2024-26886",
"CVE-2024-26900",
"CVE-2024-26936",
"CVE-2024-26952",
"CVE-2024-26980",
"CVE-2024-27017",
"CVE-2024-27398",
"CVE-2024-27399",
"CVE-2024-27401",
"CVE-2024-35848",
"CVE-2024-35947",
"CVE-2024-36016",
"CVE-2024-36017",
"CVE-2024-36880",
"CVE-2024-36883",
"CVE-2024-36886",
"CVE-2024-36889",
"CVE-2024-36897",
"CVE-2024-36902",
"CVE-2024-36904",
"CVE-2024-36905",
"CVE-2024-36906",
"CVE-2024-36916",
"CVE-2024-36919",
"CVE-2024-36928",
"CVE-2024-36929",
"CVE-2024-36931",
"CVE-2024-36933",
"CVE-2024-36934",
"CVE-2024-36937",
"CVE-2024-36938",
"CVE-2024-36939",
"CVE-2024-36940",
"CVE-2024-36941",
"CVE-2024-36944",
"CVE-2024-36946",
"CVE-2024-36947",
"CVE-2024-36950",
"CVE-2024-36952",
"CVE-2024-36953",
"CVE-2024-36954",
"CVE-2024-36955",
"CVE-2024-36957",
"CVE-2024-36959",
"CVE-2024-36960",
"CVE-2024-36964",
"CVE-2024-36965",
"CVE-2024-36967",
"CVE-2024-36969",
"CVE-2024-36975",
"CVE-2024-38600"
);
script_xref(name:"USN", value:"6956-1");
script_name(english:"Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel (Azure) vulnerabilities (USN-6956-1)");
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-6956-1 advisory.
Benedict Schlter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted
hypervisor could inject malicious #VC interrupts and compromise the security guarantees of AMD SEV-SNP.
This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to expose
sensitive information or possibly execute arbitrary code in the trusted execution environment.
(CVE-2024-25742)
Several security issues were discovered in the Linux kernel. An attacker could possibly use these to
compromise the system. This update corrects flaws in the following subsystems:
- ARM32 architecture;
- ARM64 architecture;
- Block layer subsystem;
- Bluetooth drivers;
- Clock framework and drivers;
- FireWire subsystem;
- GPU drivers;
- InfiniBand drivers;
- Multiple devices driver;
- EEPROM drivers;
- Network drivers;
- Pin controllers subsystem;
- Remote Processor subsystem;
- S/390 drivers;
- SCSI drivers;
- TTY drivers;
- 9P distributed file system;
- Network file system client;
- SMB network file system;
- Socket messages infrastructure;
- Dynamic debug library;
- Bluetooth subsystem;
- Networking core;
- IPv4 networking;
- IPv6 networking;
- Multipath TCP;
- Netfilter;
- NSH protocol;
- Phonet protocol;
- TIPC protocol;
- Wireless networking;
- Key management;
- ALSA framework;
- HD-audio driver; (CVE-2024-36933, CVE-2024-36960, CVE-2024-26936, CVE-2024-36975, CVE-2023-52882,
CVE-2024-27401, CVE-2024-36929, CVE-2024-36939, CVE-2024-35947, CVE-2024-36883, CVE-2024-26886,
CVE-2024-36952, CVE-2024-36950, CVE-2024-36940, CVE-2024-36897, CVE-2023-52585, CVE-2024-26900,
CVE-2024-36959, CVE-2024-36928, CVE-2024-36938, CVE-2024-36016, CVE-2024-36965, CVE-2024-36967,
CVE-2024-36889, CVE-2024-36905, CVE-2024-36969, CVE-2024-36916, CVE-2024-36954, CVE-2024-27017,
CVE-2024-36941, CVE-2024-36957, CVE-2024-27399, CVE-2024-36937, CVE-2024-36955, CVE-2024-38600,
CVE-2023-52752, CVE-2024-36953, CVE-2024-26980, CVE-2024-36902, CVE-2024-26952, CVE-2024-36904,
CVE-2024-36964, CVE-2024-36946, CVE-2024-36880, CVE-2024-36906, CVE-2024-36947, CVE-2024-36886,
CVE-2024-36934, CVE-2024-35848, CVE-2024-36919, CVE-2024-36017, CVE-2024-36944, CVE-2024-36931,
CVE-2024-27398)
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
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-6956-1");
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:U/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:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-26952");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2024/03/06");
script_set_attribute(attribute:"patch_publication_date", value:"2024/08/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/08/13");
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-5.15.0-1070-azure-fde");
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) 2024 Canonical, Inc. / NASL script (C) 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': {
'5.15.0': {
'azure-fde': '5.15.0-1070'
}
},
'22.04': {
'5.15.0': {
'azure-fde': '5.15.0-1070'
}
}
};
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 += '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-6956-1');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2023-52585', 'CVE-2023-52752', 'CVE-2023-52882', 'CVE-2024-25742', 'CVE-2024-26886', 'CVE-2024-26900', 'CVE-2024-26936', 'CVE-2024-26952', 'CVE-2024-26980', 'CVE-2024-27017', 'CVE-2024-27398', 'CVE-2024-27399', 'CVE-2024-27401', 'CVE-2024-35848', 'CVE-2024-35947', 'CVE-2024-36016', 'CVE-2024-36017', 'CVE-2024-36880', 'CVE-2024-36883', 'CVE-2024-36886', 'CVE-2024-36889', 'CVE-2024-36897', 'CVE-2024-36902', 'CVE-2024-36904', 'CVE-2024-36905', 'CVE-2024-36906', 'CVE-2024-36916', 'CVE-2024-36919', 'CVE-2024-36928', 'CVE-2024-36929', 'CVE-2024-36931', 'CVE-2024-36933', 'CVE-2024-36934', 'CVE-2024-36937', 'CVE-2024-36938', 'CVE-2024-36939', 'CVE-2024-36940', 'CVE-2024-36941', 'CVE-2024-36944', 'CVE-2024-36946', 'CVE-2024-36947', 'CVE-2024-36950', 'CVE-2024-36952', 'CVE-2024-36953', 'CVE-2024-36954', 'CVE-2024-36955', 'CVE-2024-36957', 'CVE-2024-36959', 'CVE-2024-36960', 'CVE-2024-36964', 'CVE-2024-36965', 'CVE-2024-36967', 'CVE-2024-36969', 'CVE-2024-36975', 'CVE-2024-38600');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-6956-1');
}
else
{
extra = extra + ksplice_reporting_text();
}
}
if (extra) {
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : extra
);
exit(0);
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52585
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52752
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52882
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-25742
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26886
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26900
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26936
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26952
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26980
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27017
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27398
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27399
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27401
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-35848
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-35947
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36016
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36017
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36880
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36883
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36886
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36889
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36897
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36902
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36904
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36905
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36906
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36916
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36919
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36928
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36929
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36931
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36933
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36934
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36937
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36938
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36939
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36940
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36941
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36944
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36946
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36947
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36950
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36952
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36953
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36954
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36955
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36957
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36959
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36960
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36964
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36965
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36967
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36969
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36975
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38600
ubuntu.com/security/notices/USN-6956-1
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
AI Score
Confidence
High
EPSS
Percentile
16.8%