Ubuntu: Security Advisory (USN-5208-1)

# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.0.845177");
  script_cve_id("CVE-2021-20321", "CVE-2021-3760", "CVE-2021-4002", "CVE-2021-41864", "CVE-2021-43056", "CVE-2021-43267", "CVE-2021-43389");
  script_tag(name:"creation_date", value:"2022-01-07 13:02:47 +0000 (Fri, 07 Jan 2022)");
  script_version("2024-02-02T05:06:10+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:10 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-11-04 18:15:22 +0000 (Thu, 04 Nov 2021)");

  script_name("Ubuntu: Security Advisory (USN-5208-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 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=UBUNTU(20\.04\ LTS|21\.04|21\.10)");

  script_xref(name:"Advisory-ID", value:"USN-5208-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-5208-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'linux, linux-aws, linux-aws-5.11, linux-azure, linux-azure-5.11, linux-gcp, linux-gcp-5.11, linux-hwe-5.11, linux-kvm, linux-oracle, linux-oracle-5.11, linux-raspi' package(s) announced via the USN-5208-1 advisory.");

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

  script_tag(name:"insight", value:"Nadav Amit discovered that the hugetlb implementation in the Linux kernel
did not perform TLB flushes under certain conditions. A local attacker
could use this to leak or alter data from other processes that use huge
pages. (CVE-2021-4002)

It was discovered that a race condition existed in the overlay file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (system crash). (CVE-2021-20321)

It was discovered that the NFC subsystem in the Linux kernel contained a
use-after-free vulnerability in its NFC Controller Interface (NCI)
implementation. A local attacker could possibly use this to cause a denial
of service (system crash) or execute arbitrary code. (CVE-2021-3760)

It was discovered that an integer overflow could be triggered in the eBPF
implementation in the Linux kernel when preallocating objects for stack
maps. A privileged local attacker could use this to cause a denial of
service or possibly execute arbitrary code. (CVE-2021-41864)

It was discovered that the KVM implementation for POWER8 processors in the
Linux kernel did not properly keep track if a wakeup event could be
resolved by a guest. An attacker in a guest VM could possibly use this to
cause a denial of service (host OS crash). (CVE-2021-43056)

It was discovered that the TIPC Protocol implementation in the Linux kernel
did not properly validate MSG_CRYPTO messages in some situations. An
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2021-43267)

It was discovered that the ISDN CAPI implementation in the Linux kernel
contained a race condition in certain situations that could trigger an
array out-of-bounds bug. A privileged local attacker could possibly use
this to cause a denial of service or execute arbitrary code.
(CVE-2021-43389)");

  script_tag(name:"affected", value:"'linux, linux-aws, linux-aws-5.11, linux-azure, linux-azure-5.11, linux-gcp, linux-gcp-5.11, linux-hwe-5.11, linux-kvm, linux-oracle, linux-oracle-5.11, linux-raspi' package(s) on Ubuntu 20.04, Ubuntu 21.04, Ubuntu 21.10.");

  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 == "UBUNTU20.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1023-aws", ver:"5.11.0-1023.24~20.04.1", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1023-azure", ver:"5.11.0-1023.24~20.04.1", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1023-oracle", ver:"5.11.0-1023.24~20.04.1", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1024-gcp", ver:"5.11.0-1024.26~20.04.1", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-44-generic", ver:"5.11.0-44.48~20.04.2", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-44-generic-64k", ver:"5.11.0-44.48~20.04.2", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-44-generic-lpae", ver:"5.11.0-44.48~20.04.2", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-44-lowlatency", ver:"5.11.0-44.48~20.04.2", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-aws", ver:"5.11.0.1023.24~20.04.23", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-azure", ver:"5.11.0.1023.24~20.04.23", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-gcp", ver:"5.11.0.1024.26~20.04.24", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-64k-hwe-20.04", ver:"5.11.0.44.48~20.04.22", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-hwe-20.04", ver:"5.11.0.44.48~20.04.22", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-lpae-hwe-20.04", ver:"5.11.0.44.48~20.04.22", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-lowlatency-hwe-20.04", ver:"5.11.0.44.48~20.04.22", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-oracle", ver:"5.11.0.1023.24~20.04.16", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-virtual-hwe-20.04", ver:"5.11.0.44.48~20.04.22", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU21.04") {

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1021-kvm", ver:"5.11.0-1021.23", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1023-aws", ver:"5.11.0-1023.24", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1023-azure", ver:"5.11.0-1023.24", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1023-oracle", ver:"5.11.0-1023.24", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1024-gcp", ver:"5.11.0-1024.26", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1024-raspi", ver:"5.11.0-1024.26", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1024-raspi-nolpae", ver:"5.11.0-1024.26", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-44-generic", ver:"5.11.0-44.48", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-44-generic-64k", ver:"5.11.0-44.48", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-44-generic-lpae", ver:"5.11.0-44.48", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-44-lowlatency", ver:"5.11.0-44.48", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-aws", ver:"5.11.0.1023.24", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-azure", ver:"5.11.0.1023.24", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-gcp", ver:"5.11.0.1024.24", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic", ver:"5.11.0.44.44", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-64k", ver:"5.11.0.44.44", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-lpae", ver:"5.11.0.44.44", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-gke", ver:"5.11.0.1024.24", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-kvm", ver:"5.11.0.1021.22", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-lowlatency", ver:"5.11.0.44.44", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-oem-20.04", ver:"5.11.0.44.44", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-oracle", ver:"5.11.0.1023.24", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-raspi", ver:"5.11.0.1024.22", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-raspi-nolpae", ver:"5.11.0.1024.22", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-virtual", ver:"5.11.0.44.44", rls:"UBUNTU21.04"))) {
    report += res;
  }

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

if(release == "UBUNTU21.10") {

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.13.0-1007-kvm", ver:"5.13.0-1007.7", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.13.0-1008-aws", ver:"5.13.0-1008.9", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.13.0-1008-gcp", ver:"5.13.0-1008.9", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.13.0-1009-azure", ver:"5.13.0-1009.10", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.13.0-1011-oracle", ver:"5.13.0-1011.13", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.13.0-1012-raspi", ver:"5.13.0-1012.14", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.13.0-1012-raspi-nolpae", ver:"5.13.0-1012.14", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.13.0-23-generic", ver:"5.13.0-23.23", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.13.0-23-generic-64k", ver:"5.13.0-23.23", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.13.0-23-generic-lpae", ver:"5.13.0-23.23", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.13.0-23-lowlatency", ver:"5.13.0-23.23", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-aws", ver:"5.13.0.1008.10", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-azure", ver:"5.13.0.1009.10", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-gcp", ver:"5.13.0.1008.9", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic", ver:"5.13.0.23.34", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-64k", ver:"5.13.0.23.34", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-lpae", ver:"5.13.0.23.34", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-gke", ver:"5.13.0.1008.9", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-kvm", ver:"5.13.0.1007.7", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-lowlatency", ver:"5.13.0.23.34", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-oem-20.04", ver:"5.13.0.23.34", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-oracle", ver:"5.13.0.1011.13", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-raspi", ver:"5.13.0.1012.18", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-raspi-nolpae", ver:"5.13.0.1012.18", rls:"UBUNTU21.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-virtual", ver:"5.13.0.23.34", rls:"UBUNTU21.10"))) {
    report += res;
  }

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

exit(0);