Ubuntu: Security Advisory (USN-5886-1)

# SPDX-FileCopyrightText: 2023 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("1.3.6.1.4.1.25623.1.1.12.2023.5886.1");
  script_cve_id("CVE-2022-21216", "CVE-2022-33196", "CVE-2022-33972", "CVE-2022-38090");
  script_tag(name:"creation_date", value:"2023-02-27 11:33:27 +0000 (Mon, 27 Feb 2023)");
  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:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:A/AC:L/Au:M/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-02-28 19:42:51 +0000 (Tue, 28 Feb 2023)");

  script_name("Ubuntu: Security Advisory (USN-5886-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 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(16\.04\ LTS|18\.04\ LTS|20\.04\ LTS|22\.04\ LTS|22\.10)");

  script_xref(name:"Advisory-ID", value:"USN-5886-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-5886-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'intel-microcode' package(s) announced via the USN-5886-1 advisory.");

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

  script_tag(name:"insight", value:"Erik C. Bjorge discovered that some Intel(R) Atom and Intel Xeon Scalable
Processors did not properly implement access controls for out-of-band
management. This may allow a privileged network-adjacent user to potentially
escalate privileges. (CVE-2022-21216)

Cfir Cohen, Erdem Aktas, Felix Wilhelm, James Forshaw, Josh Eads, Nagaraju
Kodalapura Nagabhushana Rao, Przemyslaw Duda, Liron Shacham and Ron Anderson
discovered that some Intel(R) Xeon(R) Processors used incorrect default
permissions in some memory controller configurations when using Intel(R)
Software Guard Extensions. This may allow a privileged local user to potentially
escalate privileges. (CVE-2022-33196)

It was discovered that some 3rd Generation Intel(R) Xeon(R) Scalable Processors
did not properly calculate microkey keying. This may allow a privileged local
user to potentially disclose information. (CVE-2022-33972)

Joseph Nuzman discovered that some Intel(R) Processors when using Intel(R)
Software Guard Extensions did not properly isolate shared resources. This may
allow a privileged local user to potentially disclose
information. (CVE-2022-38090)");

  script_tag(name:"affected", value:"'intel-microcode' package(s) on Ubuntu 16.04, Ubuntu 18.04, Ubuntu 20.04, Ubuntu 22.04, Ubuntu 22.10.");

  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 == "UBUNTU16.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"intel-microcode", ver:"3.20230214.0ubuntu0.16.04.1+esm1", rls:"UBUNTU16.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU18.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"intel-microcode", ver:"3.20230214.0ubuntu0.18.04.1", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU20.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"intel-microcode", ver:"3.20230214.0ubuntu0.20.04.1", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

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

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

  if(!isnull(res = isdpkgvuln(pkg:"intel-microcode", ver:"3.20230214.0ubuntu0.22.04.1", rls:"UBUNTU22.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU22.10") {

  if(!isnull(res = isdpkgvuln(pkg:"intel-microcode", ver:"3.20230214.0ubuntu0.22.10.1", rls:"UBUNTU22.10"))) {
    report += res;
  }

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

exit(0);