Debian: Security Advisory (DSA-5474-1)

# 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("1.3.6.1.4.1.25623.1.1.1.1.2023.5474");
  script_cve_id("CVE-2022-40982", "CVE-2022-41804", "CVE-2023-23908");
  script_tag(name:"creation_date", value:"2023-08-14 04:29:44 +0000 (Mon, 14 Aug 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:"6.5");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:M/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/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:"2023-08-17 20:33:50 +0000 (Thu, 17 Aug 2023)");

  script_name("Debian: Security Advisory (DSA-5474-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB(11|12)");

  script_xref(name:"Advisory-ID", value:"DSA-5474-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2023/DSA-5474-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-5474");
  script_xref(name:"URL", value:"https://downfall.page");
  script_xref(name:"URL", value:"https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/gather-data-sampling.html");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/intel-microcode");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'intel-microcode' package(s) announced via the DSA-5474-1 advisory.");

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

  script_tag(name:"insight", value:"This update ships updated CPU microcode for some types of Intel CPUs and provides mitigations for security vulnerabilities.

CVE-2022-40982

Daniel Moghimi discovered Gather Data Sampling (GDS), a hardware vulnerability which allows unprivileged speculative access to data which was previously stored in vector registers.

For details please refer to /[link moved to references] and [link moved to references].

CVE-2022-41804

Unauthorized error injection in Intel SGX or Intel TDX for some Intel Xeon Processors which may allow a local user to potentially escalate privileges.

CVE-2023-23908

Improper access control in some 3rd Generation Intel Xeon Scalable processors may result in an information leak.

For the oldstable distribution (bullseye), these problems have been fixed in version 3.20230808.1~deb11u1.

For the stable distribution (bookworm), these problems have been fixed in version 3.20230808.1~deb12u1.

We recommend that you upgrade your intel-microcode packages.

For the detailed security status of intel-microcode please refer to its security tracker page at: [link moved to references]");

  script_tag(name:"affected", value:"'intel-microcode' package(s) on Debian 11, Debian 12.");

  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 == "DEB11") {

  if(!isnull(res = isdpkgvuln(pkg:"intel-microcode", ver:"3.20230808.1~deb11u1", rls:"DEB11"))) {
    report += res;
  }

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

if(release == "DEB12") {

  if(!isnull(res = isdpkgvuln(pkg:"intel-microcode", ver:"3.20230808.1~deb12u1", rls:"DEB12"))) {
    report += res;
  }

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

exit(0);