Ubuntu: Security Advisory (USN-7933-1)

# SPDX-FileCopyrightText: 2025 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.1.12.2025.7933.1");
  script_cve_id("CVE-2022-50070", "CVE-2022-50327", "CVE-2023-52593", "CVE-2023-52935", "CVE-2023-53074", "CVE-2024-26700", "CVE-2024-26896", "CVE-2024-50061", "CVE-2024-53068", "CVE-2025-37925", "CVE-2025-37968", "CVE-2025-38095", "CVE-2025-38148", "CVE-2025-38165", "CVE-2025-38335", "CVE-2025-38347", "CVE-2025-38468", "CVE-2025-38470", "CVE-2025-38473", "CVE-2025-38474", "CVE-2025-38476", "CVE-2025-38477", "CVE-2025-38478", "CVE-2025-38480", "CVE-2025-38481", "CVE-2025-38482", "CVE-2025-38483", "CVE-2025-38487", "CVE-2025-38488", "CVE-2025-38494", "CVE-2025-38495", "CVE-2025-38497", "CVE-2025-38499", "CVE-2025-38502", "CVE-2025-38527", "CVE-2025-38528", "CVE-2025-38529", "CVE-2025-38530", "CVE-2025-38535", "CVE-2025-38538", "CVE-2025-38539", "CVE-2025-38548", "CVE-2025-38550", "CVE-2025-38553", "CVE-2025-38555", "CVE-2025-38563", "CVE-2025-38565", "CVE-2025-38569", "CVE-2025-38572", "CVE-2025-38574", "CVE-2025-38576", "CVE-2025-38577", "CVE-2025-38578", "CVE-2025-38579", "CVE-2025-38581", "CVE-2025-38583", "CVE-2025-38601", "CVE-2025-38602", "CVE-2025-38604", "CVE-2025-38608", "CVE-2025-38609", "CVE-2025-38612", "CVE-2025-38614", "CVE-2025-38617", "CVE-2025-38618", "CVE-2025-38622", "CVE-2025-38623", "CVE-2025-38624", "CVE-2025-38630", "CVE-2025-38634", "CVE-2025-38635", "CVE-2025-38639", "CVE-2025-38645", "CVE-2025-38650", "CVE-2025-38652", "CVE-2025-38663", "CVE-2025-38664", "CVE-2025-38666", "CVE-2025-38668", "CVE-2025-38670", "CVE-2025-38671", "CVE-2025-38676", "CVE-2025-38677", "CVE-2025-38678", "CVE-2025-38680", "CVE-2025-38681", "CVE-2025-38683", "CVE-2025-38684", "CVE-2025-38685", "CVE-2025-38687", "CVE-2025-38691", "CVE-2025-38693", "CVE-2025-38694", "CVE-2025-38695", "CVE-2025-38696", "CVE-2025-38697", "CVE-2025-38698", "CVE-2025-38699", "CVE-2025-38700", "CVE-2025-38701", "CVE-2025-38706", "CVE-2025-38707", "CVE-2025-38708", "CVE-2025-38711", "CVE-2025-38712", "CVE-2025-38713", "CVE-2025-38714", "CVE-2025-38715", "CVE-2025-38718", "CVE-2025-38721", "CVE-2025-38724", "CVE-2025-38725", "CVE-2025-38727", "CVE-2025-38729", "CVE-2025-38732", "CVE-2025-39673", "CVE-2025-39675", "CVE-2025-39676", "CVE-2025-39681", "CVE-2025-39683", "CVE-2025-39684", "CVE-2025-39685", "CVE-2025-39686", "CVE-2025-39687", "CVE-2025-39689", "CVE-2025-39691", "CVE-2025-39693", "CVE-2025-39697", "CVE-2025-39702", "CVE-2025-39703", "CVE-2025-39709", "CVE-2025-39710", "CVE-2025-39713", "CVE-2025-39714", "CVE-2025-39724", "CVE-2025-39730", "CVE-2025-39734", "CVE-2025-39736", "CVE-2025-39737", "CVE-2025-39738", "CVE-2025-39742", "CVE-2025-39743", "CVE-2025-39749", "CVE-2025-39752", "CVE-2025-39756", "CVE-2025-39757", "CVE-2025-39760", "CVE-2025-39766", "CVE-2025-39772", "CVE-2025-39773", "CVE-2025-39776", "CVE-2025-39782", "CVE-2025-39783", "CVE-2025-39787", "CVE-2025-39788", "CVE-2025-39790", "CVE-2025-39794", "CVE-2025-39795", "CVE-2025-39798", "CVE-2025-39801", "CVE-2025-39806", "CVE-2025-39808", "CVE-2025-39812", "CVE-2025-39813", "CVE-2025-39817", "CVE-2025-39823", "CVE-2025-39824", "CVE-2025-39828", "CVE-2025-39835", "CVE-2025-39839", "CVE-2025-39841", "CVE-2025-39844", "CVE-2025-39845", "CVE-2025-39846", "CVE-2025-39847", "CVE-2025-39848", "CVE-2025-39853", "CVE-2025-39860", "CVE-2025-39864", "CVE-2025-39865", "CVE-2025-39866", "CVE-2025-39891", "CVE-2025-39894", "CVE-2025-39902", "CVE-2025-39920", "CVE-2025-40300");
  script_tag(name:"creation_date", value:"2025-12-16 16:35:37 +0000 (Tue, 16 Dec 2025)");
  script_version("2026-01-23T05:49:25+0000");
  script_tag(name:"last_modification", value:"2026-01-23 05:49:25 +0000 (Fri, 23 Jan 2026)");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2026-01-23 02:33:32 +0000 (Fri, 23 Jan 2026)");

  script_name("Ubuntu: Security Advisory (USN-7933-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2025 Greenbone AG");
  script_family("Ubuntu Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU22\.04\ LTS");

  script_xref(name:"Advisory-ID", value:"USN-7933-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-7933-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'linux-kvm' package(s) announced via the USN-7933-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"Jean-Claude Graf, Sandro Ruegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)

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,
 - MIPS architecture,
 - PowerPC architecture,
 - RISC-V architecture,
 - S390 architecture,
 - x86 architecture,
 - Block layer subsystem,
 - ACPI drivers,
 - ATM drivers,
 - DRBD Distributed Replicated Block Device drivers,
 - Bus devices,
 - Clock framework and drivers,
 - Data acquisition framework and drivers,
 - Hardware crypto device drivers,
 - Device frequency scaling framework,
 - Buffer Sharing and Synchronization framework,
 - DMA engine subsystem,
 - ARM SCMI message protocol,
 - GPU drivers,
 - HID subsystem,
 - Hardware monitoring drivers,
 - I2C subsystem,
 - I3C subsystem,
 - IIO subsystem,
 - InfiniBand drivers,
 - Input Device core drivers,
 - IOMMU subsystem,
 - Media drivers,
 - Network drivers,
 - Mellanox network drivers,
 - PCI subsystem,
 - PCCARD (PCMCIA/CardBus) bus subsystem,
 - PHY drivers,
 - Power supply drivers,
 - Voltage and Current Regulator drivers,
 - SCSI subsystem,
 - ASPEED SoC drivers,
 - QCOM SoC drivers,
 - small TFT LCD display modules,
 - Trusted Execution Environment drivers,
 - TTY drivers,
 - UFS subsystem,
 - USB core drivers,
 - DesignWare USB3 driver,
 - USB Gadget drivers,
 - Framebuffer layer,
 - BTRFS file system,
 - File systems infrastructure,
 - EFI Variable file system,
 - Ext4 file system,
 - F2FS file system,
 - JFS file system,
 - Network file system (NFS) client,
 - Network file system (NFS) server daemon,
 - NILFS2 file system,
 - NTFS3 file system,
 - SMB network file system,
 - Asynchronous Transfer Mode (ATM) subsystem,
 - BPF subsystem,
 - NFS page cache wrapper,
 - Memory management,
 - Networking subsytem,
 - UDP network protocol,
 - Perf events,
 - RCU subsystem,
 - Tracing infrastructure,
 - 802.1Q VLAN protocol,
 - Appletalk network protocol,
 - Amateur Radio drivers,
 - B.A.T.M.A.N. meshing protocol,
 - Bluetooth subsystem,
 - Ethernet bridge,
 - Networking core,
 - HSR network protocol,
 - IPv4 networking,
 - IPv6 networking,
 - Multipath TCP,
 - Netfilter,
 - Netlink,
 - Packet sockets,
 - Network traffic control,
 - SCTP protocol,
 - TLS protocol,
 - VMware vSockets driver,
 - Wireless networking,
 - SoC audio core drivers,
 - USB sound devices,
(CVE-2022-50070, CVE-2022-50327, CVE-2023-52593, CVE-2023-52935,
CVE-2023-53074, CVE-2024-26700, CVE-2024-26896, CVE-2024-50061,
CVE-2024-53068, CVE-2025-37925, ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'linux-kvm' package(s) on Ubuntu 22.04.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "UBUNTU22.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.15.0-1089-kvm", ver:"5.15.0-1089.94", rls:"UBUNTU22.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-kvm", ver:"5.15.0.1089.85", rls:"UBUNTU22.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-kvm-5.15", ver:"5.15.0.1089.85", rls:"UBUNTU22.04 LTS"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);