Ubuntu: Security Advisory (USN-4229-2)

# 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("1.3.6.1.4.1.25623.1.1.12.2021.4229.2");
  script_cve_id("CVE-2018-12327");
  script_tag(name:"creation_date", value:"2023-01-27 04:10:43 +0000 (Fri, 27 Jan 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:"7.5");
  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:3.0/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:"2018-08-10 16:57:49 +0000 (Fri, 10 Aug 2018)");

  script_name("Ubuntu: Security Advisory (USN-4229-2)");
  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=UBUNTU18\.04\ LTS");

  script_xref(name:"Advisory-ID", value:"USN-4229-2");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-4229-2");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'ntp' package(s) announced via the USN-4229-2 advisory.");

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

  script_tag(name:"insight", value:"USN-4229-1 fixed a vulnerability in NTP. This update provides the
corresponding update for Ubuntu 18.04 ESM.

Original advisory details:

 It was discovered that ntpq and ntpdc incorrectly handled some arguments.
 An attacker could possibly use this issue to cause ntpq or ntpdc to crash,
 execute arbitrary code, or escalate to higher privileges.");

  script_tag(name:"affected", value:"'ntp' package(s) on Ubuntu 18.04.");

  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 == "UBUNTU18.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"ntp", ver:"1:4.2.8p10+dfsg-5ubuntu7.3+esm1", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ntpdate", ver:"1:4.2.8p10+dfsg-5ubuntu7.3+esm1", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"sntp", ver:"1:4.2.8p10+dfsg-5ubuntu7.3+esm1", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

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

exit(0);