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nessusUbuntu Security Notice (C) 2024 Canonical, Inc. / NASL script (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.UBUNTU_USN-6820-1.NASL
HistoryJun 07, 2024 - 12:00 a.m.

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6820-1)

2024-06-0700:00:00
Ubuntu Security Notice (C) 2024 Canonical, Inc. / NASL script (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
1
linux kernel vulnerabilities
denial of service
arbitrary code execution
use-after-free
null pointer dereference
remote code execution
access control
race condition
bluetooth rfcomm
wireless drivers
ethernet drivers
security issues
system compromise
arm32 architecture
x86 architecture
cryptographic api
usb subsystem
memory management
networking core
ethernet bridge
file systems
netfilter
tls protocol
bluetooth subsystem

8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.6 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.5%

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-6820-1 advisory.

It was discovered that the ATA over Ethernet (AoE) driver in the Linux kernel contained a race condition,     leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or     possibly execute arbitrary code. (CVE-2023-6270)

It was discovered that the Atheros 802.11ac wireless driver did not properly validate certain data     structures, leading to a NULL pointer dereference. An attacker could possibly use this to cause a denial     of service. (CVE-2023-7042)

It was discovered that the HugeTLB file system component of the Linux Kernel contained a NULL pointer     dereference vulnerability. A privileged attacker could possibly use this to to cause a denial of service.
(CVE-2024-0841)

It was discovered that the Intel Data Streaming and Intel Analytics Accelerator drivers in the Linux     kernel allowed direct access to the devices for unprivileged users and virtual machines. A local attacker     could use this to cause a denial of service. (CVE-2024-21823)

Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux Kernel contained a race     condition, leading to a NULL pointer dereference. An attacker could possibly use this to cause a denial of     service (system crash). (CVE-2024-22099)

It was discovered that the MediaTek SoC Gigabit Ethernet driver in the Linux kernel contained a race     condition when stopping the device. A local attacker could possibly use this to cause a denial of service     (device unavailability). (CVE-2024-27432)

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;

- RISC-V architecture;

- x86 architecture;

- ACPI drivers;

- Block layer subsystem;

- Clock framework and drivers;

- CPU frequency scaling framework;

- Cryptographic API;

- DMA engine subsystem;

- EFI core;

- GPU drivers;

- InfiniBand drivers;

- IOMMU subsystem;

- Multiple devices driver;

- Media drivers;

- MMC subsystem;

- Network drivers;

- NTB driver;

- NVME drivers;

- PCI subsystem;

- MediaTek PM domains;

- Power supply drivers;

- SPI subsystem;

- Media staging drivers;

- TCM subsystem;

- USB subsystem;

- Framebuffer layer;

- AFS file system;

- File systems infrastructure;

- BTRFS file system;

- EROFS file system;

- Ext4 file system;

- F2FS file system;

- Network file system client;

- NTFS3 file system;

- Diskquota system;

- SMB network file system;

- BPF subsystem;

- Netfilter;

- TLS protocol;

- io_uring subsystem;

- Bluetooth subsystem;

- Memory management;

- Ethernet bridge;

- Networking core;

- HSR network protocol;

- IPv4 networking;

- IPv6 networking;

- L2TP protocol;

- MAC80211 subsystem;

- Multipath TCP;

- Netlink;

- NET/ROM layer;

- Packet sockets;

- RDS protocol;

- Sun RPC protocol;

- Unix domain sockets;

- Wireless networking;

- USB sound devices; (CVE-2024-26776, CVE-2024-26802, CVE-2024-26790, CVE-2024-27388, CVE-2024-27077,     CVE-2024-26884, CVE-2024-26779, CVE-2024-26897, CVE-2024-27045, CVE-2024-26851, CVE-2024-27065,     CVE-2024-26843, CVE-2024-26743, CVE-2024-27052, CVE-2024-26855, CVE-2024-27436, CVE-2024-27078,     CVE-2024-26898, CVE-2024-27405, CVE-2024-26894, CVE-2024-26584, CVE-2024-26915, CVE-2024-26763,     CVE-2024-27047, CVE-2024-26809, CVE-2024-26883, CVE-2024-26901, CVE-2024-27412, CVE-2024-26803,     CVE-2024-26751, CVE-2024-35829, CVE-2024-27432, CVE-2023-52447, CVE-2024-26748, CVE-2024-27051,     CVE-2023-52434, CVE-2024-26749, CVE-2024-27034, CVE-2024-27390, CVE-2024-26879, CVE-2024-26859,     CVE-2024-26835, CVE-2024-26861, CVE-2024-27030, CVE-2024-27415, CVE-2023-52656, CVE-2024-26773,     CVE-2024-27043, CVE-2024-26601, CVE-2024-27073, CVE-2024-26782, CVE-2024-27413, CVE-2024-26880,     CVE-2024-26793, CVE-2024-26766, CVE-2024-26750, CVE-2024-26852, CVE-2024-26805, CVE-2024-35830,     CVE-2024-26798, CVE-2023-52644, CVE-2024-26787, CVE-2024-26846, CVE-2024-26857, CVE-2024-26752,     CVE-2024-26792, CVE-2023-52641, CVE-2024-26771, CVE-2024-26736, CVE-2024-27417, CVE-2024-26840,     CVE-2024-26838, CVE-2024-26820, CVE-2024-26778, CVE-2024-26688, CVE-2024-27403, CVE-2024-26862,     CVE-2024-27038, CVE-2024-26839, CVE-2024-26889, CVE-2024-26774, CVE-2024-26907, CVE-2023-52645,     CVE-2024-27431, CVE-2024-27410, CVE-2024-27416, CVE-2024-26795, CVE-2023-52497, CVE-2024-27419,     CVE-2024-26744, CVE-2024-26833, CVE-2024-26735, CVE-2024-26651, CVE-2024-27074, CVE-2023-52652,     CVE-2024-27044, CVE-2024-26733, CVE-2024-26659, CVE-2024-35811, CVE-2024-27053, CVE-2024-27037,     CVE-2023-52620, CVE-2024-26882, CVE-2024-35828, CVE-2024-26856, CVE-2024-26881, CVE-2024-27075,     CVE-2024-26583, CVE-2023-52662, CVE-2024-26788, CVE-2024-26903, CVE-2024-26870, CVE-2024-26777,     CVE-2024-26874, CVE-2024-26906, CVE-2024-26872, CVE-2024-26895, CVE-2024-26845, CVE-2024-27024,     CVE-2024-27076, CVE-2024-26603, CVE-2024-27054, CVE-2024-26754, CVE-2024-35844, CVE-2024-26764,     CVE-2024-26885, CVE-2024-26772, CVE-2024-26804, CVE-2024-26585, CVE-2024-26791, CVE-2024-27414,     CVE-2024-26878, CVE-2024-26816, CVE-2024-27046, CVE-2024-26891, CVE-2024-26875, CVE-2024-26747,     CVE-2024-26863, CVE-2023-52640, CVE-2023-52650, CVE-2024-27039, CVE-2024-26877, CVE-2024-26801,     CVE-2024-35845, CVE-2024-26769, CVE-2024-27028, CVE-2024-26737)

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-6820-1. 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(200223);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/07");

  script_cve_id(
    "CVE-2023-6270",
    "CVE-2023-7042",
    "CVE-2023-52434",
    "CVE-2023-52447",
    "CVE-2023-52497",
    "CVE-2023-52620",
    "CVE-2023-52640",
    "CVE-2023-52641",
    "CVE-2023-52644",
    "CVE-2023-52645",
    "CVE-2023-52650",
    "CVE-2023-52652",
    "CVE-2023-52656",
    "CVE-2023-52662",
    "CVE-2024-0841",
    "CVE-2024-21823",
    "CVE-2024-22099",
    "CVE-2024-26583",
    "CVE-2024-26584",
    "CVE-2024-26585",
    "CVE-2024-26601",
    "CVE-2024-26603",
    "CVE-2024-26651",
    "CVE-2024-26659",
    "CVE-2024-26688",
    "CVE-2024-26733",
    "CVE-2024-26735",
    "CVE-2024-26736",
    "CVE-2024-26737",
    "CVE-2024-26743",
    "CVE-2024-26744",
    "CVE-2024-26747",
    "CVE-2024-26748",
    "CVE-2024-26749",
    "CVE-2024-26750",
    "CVE-2024-26751",
    "CVE-2024-26752",
    "CVE-2024-26754",
    "CVE-2024-26763",
    "CVE-2024-26764",
    "CVE-2024-26766",
    "CVE-2024-26769",
    "CVE-2024-26771",
    "CVE-2024-26772",
    "CVE-2024-26773",
    "CVE-2024-26774",
    "CVE-2024-26776",
    "CVE-2024-26777",
    "CVE-2024-26778",
    "CVE-2024-26779",
    "CVE-2024-26782",
    "CVE-2024-26787",
    "CVE-2024-26788",
    "CVE-2024-26790",
    "CVE-2024-26791",
    "CVE-2024-26792",
    "CVE-2024-26793",
    "CVE-2024-26795",
    "CVE-2024-26798",
    "CVE-2024-26801",
    "CVE-2024-26802",
    "CVE-2024-26803",
    "CVE-2024-26804",
    "CVE-2024-26805",
    "CVE-2024-26809",
    "CVE-2024-26816",
    "CVE-2024-26820",
    "CVE-2024-26833",
    "CVE-2024-26835",
    "CVE-2024-26838",
    "CVE-2024-26839",
    "CVE-2024-26840",
    "CVE-2024-26843",
    "CVE-2024-26845",
    "CVE-2024-26846",
    "CVE-2024-26851",
    "CVE-2024-26852",
    "CVE-2024-26855",
    "CVE-2024-26856",
    "CVE-2024-26857",
    "CVE-2024-26859",
    "CVE-2024-26861",
    "CVE-2024-26862",
    "CVE-2024-26863",
    "CVE-2024-26870",
    "CVE-2024-26872",
    "CVE-2024-26874",
    "CVE-2024-26875",
    "CVE-2024-26877",
    "CVE-2024-26878",
    "CVE-2024-26879",
    "CVE-2024-26880",
    "CVE-2024-26881",
    "CVE-2024-26882",
    "CVE-2024-26883",
    "CVE-2024-26884",
    "CVE-2024-26885",
    "CVE-2024-26889",
    "CVE-2024-26891",
    "CVE-2024-26894",
    "CVE-2024-26895",
    "CVE-2024-26897",
    "CVE-2024-26898",
    "CVE-2024-26901",
    "CVE-2024-26903",
    "CVE-2024-26906",
    "CVE-2024-26907",
    "CVE-2024-26915",
    "CVE-2024-27024",
    "CVE-2024-27028",
    "CVE-2024-27030",
    "CVE-2024-27034",
    "CVE-2024-27037",
    "CVE-2024-27038",
    "CVE-2024-27039",
    "CVE-2024-27043",
    "CVE-2024-27044",
    "CVE-2024-27045",
    "CVE-2024-27046",
    "CVE-2024-27047",
    "CVE-2024-27051",
    "CVE-2024-27052",
    "CVE-2024-27053",
    "CVE-2024-27054",
    "CVE-2024-27065",
    "CVE-2024-27073",
    "CVE-2024-27074",
    "CVE-2024-27075",
    "CVE-2024-27076",
    "CVE-2024-27077",
    "CVE-2024-27078",
    "CVE-2024-27388",
    "CVE-2024-27390",
    "CVE-2024-27403",
    "CVE-2024-27405",
    "CVE-2024-27410",
    "CVE-2024-27412",
    "CVE-2024-27413",
    "CVE-2024-27414",
    "CVE-2024-27415",
    "CVE-2024-27416",
    "CVE-2024-27417",
    "CVE-2024-27419",
    "CVE-2024-27431",
    "CVE-2024-27432",
    "CVE-2024-27436",
    "CVE-2024-35811",
    "CVE-2024-35828",
    "CVE-2024-35829",
    "CVE-2024-35830",
    "CVE-2024-35844",
    "CVE-2024-35845"
  );
  script_xref(name:"USN", value:"6820-1");

  script_name(english:"Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6820-1)");

  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-6820-1 advisory.

    It was discovered that the ATA over Ethernet (AoE) driver in the Linux kernel contained a race condition,
    leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or
    possibly execute arbitrary code. (CVE-2023-6270)

    It was discovered that the Atheros 802.11ac wireless driver did not properly validate certain data
    structures, leading to a NULL pointer dereference. An attacker could possibly use this to cause a denial
    of service. (CVE-2023-7042)

    It was discovered that the HugeTLB file system component of the Linux Kernel contained a NULL pointer
    dereference vulnerability. A privileged attacker could possibly use this to to cause a denial of service.
    (CVE-2024-0841)

    It was discovered that the Intel Data Streaming and Intel Analytics Accelerator drivers in the Linux
    kernel allowed direct access to the devices for unprivileged users and virtual machines. A local attacker
    could use this to cause a denial of service. (CVE-2024-21823)

    Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux Kernel contained a race
    condition, leading to a NULL pointer dereference. An attacker could possibly use this to cause a denial of
    service (system crash). (CVE-2024-22099)

    It was discovered that the MediaTek SoC Gigabit Ethernet driver in the Linux kernel contained a race
    condition when stopping the device. A local attacker could possibly use this to cause a denial of service
    (device unavailability). (CVE-2024-27432)

    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;

    - RISC-V architecture;

    - x86 architecture;

    - ACPI drivers;

    - Block layer subsystem;

    - Clock framework and drivers;

    - CPU frequency scaling framework;

    - Cryptographic API;

    - DMA engine subsystem;

    - EFI core;

    - GPU drivers;

    - InfiniBand drivers;

    - IOMMU subsystem;

    - Multiple devices driver;

    - Media drivers;

    - MMC subsystem;

    - Network drivers;

    - NTB driver;

    - NVME drivers;

    - PCI subsystem;

    - MediaTek PM domains;

    - Power supply drivers;

    - SPI subsystem;

    - Media staging drivers;

    - TCM subsystem;

    - USB subsystem;

    - Framebuffer layer;

    - AFS file system;

    - File systems infrastructure;

    - BTRFS file system;

    - EROFS file system;

    - Ext4 file system;

    - F2FS file system;

    - Network file system client;

    - NTFS3 file system;

    - Diskquota system;

    - SMB network file system;

    - BPF subsystem;

    - Netfilter;

    - TLS protocol;

    - io_uring subsystem;

    - Bluetooth subsystem;

    - Memory management;

    - Ethernet bridge;

    - Networking core;

    - HSR network protocol;

    - IPv4 networking;

    - IPv6 networking;

    - L2TP protocol;

    - MAC80211 subsystem;

    - Multipath TCP;

    - Netlink;

    - NET/ROM layer;

    - Packet sockets;

    - RDS protocol;

    - Sun RPC protocol;

    - Unix domain sockets;

    - Wireless networking;

    - USB sound devices; (CVE-2024-26776, CVE-2024-26802, CVE-2024-26790, CVE-2024-27388, CVE-2024-27077,
    CVE-2024-26884, CVE-2024-26779, CVE-2024-26897, CVE-2024-27045, CVE-2024-26851, CVE-2024-27065,
    CVE-2024-26843, CVE-2024-26743, CVE-2024-27052, CVE-2024-26855, CVE-2024-27436, CVE-2024-27078,
    CVE-2024-26898, CVE-2024-27405, CVE-2024-26894, CVE-2024-26584, CVE-2024-26915, CVE-2024-26763,
    CVE-2024-27047, CVE-2024-26809, CVE-2024-26883, CVE-2024-26901, CVE-2024-27412, CVE-2024-26803,
    CVE-2024-26751, CVE-2024-35829, CVE-2024-27432, CVE-2023-52447, CVE-2024-26748, CVE-2024-27051,
    CVE-2023-52434, CVE-2024-26749, CVE-2024-27034, CVE-2024-27390, CVE-2024-26879, CVE-2024-26859,
    CVE-2024-26835, CVE-2024-26861, CVE-2024-27030, CVE-2024-27415, CVE-2023-52656, CVE-2024-26773,
    CVE-2024-27043, CVE-2024-26601, CVE-2024-27073, CVE-2024-26782, CVE-2024-27413, CVE-2024-26880,
    CVE-2024-26793, CVE-2024-26766, CVE-2024-26750, CVE-2024-26852, CVE-2024-26805, CVE-2024-35830,
    CVE-2024-26798, CVE-2023-52644, CVE-2024-26787, CVE-2024-26846, CVE-2024-26857, CVE-2024-26752,
    CVE-2024-26792, CVE-2023-52641, CVE-2024-26771, CVE-2024-26736, CVE-2024-27417, CVE-2024-26840,
    CVE-2024-26838, CVE-2024-26820, CVE-2024-26778, CVE-2024-26688, CVE-2024-27403, CVE-2024-26862,
    CVE-2024-27038, CVE-2024-26839, CVE-2024-26889, CVE-2024-26774, CVE-2024-26907, CVE-2023-52645,
    CVE-2024-27431, CVE-2024-27410, CVE-2024-27416, CVE-2024-26795, CVE-2023-52497, CVE-2024-27419,
    CVE-2024-26744, CVE-2024-26833, CVE-2024-26735, CVE-2024-26651, CVE-2024-27074, CVE-2023-52652,
    CVE-2024-27044, CVE-2024-26733, CVE-2024-26659, CVE-2024-35811, CVE-2024-27053, CVE-2024-27037,
    CVE-2023-52620, CVE-2024-26882, CVE-2024-35828, CVE-2024-26856, CVE-2024-26881, CVE-2024-27075,
    CVE-2024-26583, CVE-2023-52662, CVE-2024-26788, CVE-2024-26903, CVE-2024-26870, CVE-2024-26777,
    CVE-2024-26874, CVE-2024-26906, CVE-2024-26872, CVE-2024-26895, CVE-2024-26845, CVE-2024-27024,
    CVE-2024-27076, CVE-2024-26603, CVE-2024-27054, CVE-2024-26754, CVE-2024-35844, CVE-2024-26764,
    CVE-2024-26885, CVE-2024-26772, CVE-2024-26804, CVE-2024-26585, CVE-2024-26791, CVE-2024-27414,
    CVE-2024-26878, CVE-2024-26816, CVE-2024-27046, CVE-2024-26891, CVE-2024-26875, CVE-2024-26747,
    CVE-2024-26863, CVE-2023-52640, CVE-2023-52650, CVE-2024-27039, CVE-2024-26877, CVE-2024-26801,
    CVE-2024-35845, CVE-2024-26769, CVE-2024-27028, CVE-2024-26737)

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-6820-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
  script_set_cvss_base_vector("CVSS2#AV:A/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:A/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-2023-52434");

  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:"2023/12/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/06/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/06/07");

  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-5.15.0-1030-xilinx-zynqmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1062-gcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-110-lowlatency");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-110-lowlatency-64k");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-112-generic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-112-generic-64k");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-112-generic-lpae");
  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': {
      'lowlatency': '5.15.0-110',
      'lowlatency-64k': '5.15.0-110',
      'gcp': '5.15.0-1062'
    }
  },
  '22.04': {
    '5.15.0': {
      'lowlatency': '5.15.0-110',
      'lowlatency-64k': '5.15.0-110',
      'generic': '5.15.0-112',
      'generic-64k': '5.15.0-112',
      'generic-lpae': '5.15.0-112',
      'xilinx-zynqmp': '5.15.0-1030',
      'gcp': '5.15.0-1062'
    }
  }
};

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-6820-1');
}

if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
  var cve_list = make_list('CVE-2023-6270', 'CVE-2023-7042', 'CVE-2023-52434', 'CVE-2023-52447', 'CVE-2023-52497', 'CVE-2023-52620', 'CVE-2023-52640', 'CVE-2023-52641', 'CVE-2023-52644', 'CVE-2023-52645', 'CVE-2023-52650', 'CVE-2023-52652', 'CVE-2023-52656', 'CVE-2023-52662', 'CVE-2024-0841', 'CVE-2024-21823', 'CVE-2024-22099', 'CVE-2024-26583', 'CVE-2024-26584', 'CVE-2024-26585', 'CVE-2024-26601', 'CVE-2024-26603', 'CVE-2024-26651', 'CVE-2024-26659', 'CVE-2024-26688', 'CVE-2024-26733', 'CVE-2024-26735', 'CVE-2024-26736', 'CVE-2024-26737', 'CVE-2024-26743', 'CVE-2024-26744', 'CVE-2024-26747', 'CVE-2024-26748', 'CVE-2024-26749', 'CVE-2024-26750', 'CVE-2024-26751', 'CVE-2024-26752', 'CVE-2024-26754', 'CVE-2024-26763', 'CVE-2024-26764', 'CVE-2024-26766', 'CVE-2024-26769', 'CVE-2024-26771', 'CVE-2024-26772', 'CVE-2024-26773', 'CVE-2024-26774', 'CVE-2024-26776', 'CVE-2024-26777', 'CVE-2024-26778', 'CVE-2024-26779', 'CVE-2024-26782', 'CVE-2024-26787', 'CVE-2024-26788', 'CVE-2024-26790', 'CVE-2024-26791', 'CVE-2024-26792', 'CVE-2024-26793', 'CVE-2024-26795', 'CVE-2024-26798', 'CVE-2024-26801', 'CVE-2024-26802', 'CVE-2024-26803', 'CVE-2024-26804', 'CVE-2024-26805', 'CVE-2024-26809', 'CVE-2024-26816', 'CVE-2024-26820', 'CVE-2024-26833', 'CVE-2024-26835', 'CVE-2024-26838', 'CVE-2024-26839', 'CVE-2024-26840', 'CVE-2024-26843', 'CVE-2024-26845', 'CVE-2024-26846', 'CVE-2024-26851', 'CVE-2024-26852', 'CVE-2024-26855', 'CVE-2024-26856', 'CVE-2024-26857', 'CVE-2024-26859', 'CVE-2024-26861', 'CVE-2024-26862', 'CVE-2024-26863', 'CVE-2024-26870', 'CVE-2024-26872', 'CVE-2024-26874', 'CVE-2024-26875', 'CVE-2024-26877', 'CVE-2024-26878', 'CVE-2024-26879', 'CVE-2024-26880', 'CVE-2024-26881', 'CVE-2024-26882', 'CVE-2024-26883', 'CVE-2024-26884', 'CVE-2024-26885', 'CVE-2024-26889', 'CVE-2024-26891', 'CVE-2024-26894', 'CVE-2024-26895', 'CVE-2024-26897', 'CVE-2024-26898', 'CVE-2024-26901', 'CVE-2024-26903', 'CVE-2024-26906', 'CVE-2024-26907', 'CVE-2024-26915', 'CVE-2024-27024', 'CVE-2024-27028', 'CVE-2024-27030', 'CVE-2024-27034', 'CVE-2024-27037', 'CVE-2024-27038', 'CVE-2024-27039', 'CVE-2024-27043', 'CVE-2024-27044', 'CVE-2024-27045', 'CVE-2024-27046', 'CVE-2024-27047', 'CVE-2024-27051', 'CVE-2024-27052', 'CVE-2024-27053', 'CVE-2024-27054', 'CVE-2024-27065', 'CVE-2024-27073', 'CVE-2024-27074', 'CVE-2024-27075', 'CVE-2024-27076', 'CVE-2024-27077', 'CVE-2024-27078', 'CVE-2024-27388', 'CVE-2024-27390', 'CVE-2024-27403', 'CVE-2024-27405', 'CVE-2024-27410', 'CVE-2024-27412', 'CVE-2024-27413', 'CVE-2024-27414', 'CVE-2024-27415', 'CVE-2024-27416', 'CVE-2024-27417', 'CVE-2024-27419', 'CVE-2024-27431', 'CVE-2024-27432', 'CVE-2024-27436', 'CVE-2024-35811', 'CVE-2024-35828', 'CVE-2024-35829', 'CVE-2024-35830', 'CVE-2024-35844', 'CVE-2024-35845');
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-6820-1');
  }
  else
  {
    extra = extra + ksplice_reporting_text();
  }
}
if (extra) {
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : extra
  );
  exit(0);
}
VendorProductVersionCPE
canonicalubuntu_linuxlinux-image-5.15.0-1030-xilinx-zynqmpp-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1030-xilinx-zynqmp
canonicalubuntu_linux20.04cpe:/o:canonical:ubuntu_linux:20.04:-:lts
canonicalubuntu_linuxlinux-image-5.15.0-112-genericp-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-112-generic
canonicalubuntu_linuxlinux-image-5.15.0-1062-gcpp-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1062-gcp
canonicalubuntu_linuxlinux-image-5.15.0-112-generic-lpaep-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-112-generic-lpae
canonicalubuntu_linux22.04cpe:/o:canonical:ubuntu_linux:22.04:-:lts
canonicalubuntu_linuxlinux-image-5.15.0-112-generic-64kp-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-112-generic-64k
canonicalubuntu_linuxlinux-image-5.15.0-110-lowlatencyp-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-110-lowlatency
canonicalubuntu_linuxlinux-image-5.15.0-110-lowlatency-64kp-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-110-lowlatency-64k

References

8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.6 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.5%