Ubuntu: Security Advisory (USN-4377-1)

# SPDX-FileCopyrightText: 2020 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("1.3.6.1.4.1.25623.1.0.844452");
  script_tag(name:"creation_date", value:"2020-06-02 03:00:20 +0000 (Tue, 02 Jun 2020)");
  script_version("2023-06-21T05:06:21+0000");
  script_tag(name:"last_modification", value:"2023-06-21 05:06:21 +0000 (Wed, 21 Jun 2023)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_name("Ubuntu: Security Advisory (USN-4377-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 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|19\.10|20\.04\ LTS)");

  script_xref(name:"Advisory-ID", value:"USN-4377-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-4377-1");
  script_xref(name:"URL", value:"https://launchpad.net/bugs/1881533");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'ca-certificates' package(s) announced via the USN-4377-1 advisory.");

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

  script_tag(name:"insight", value:"The ca-certificates package contained an expired CA certificate that caused
connectivity issues. This update removes the 'AddTrust External Root' CA.

In addition, on Ubuntu 16.04 LTS and Ubuntu 18.04 LTS, this update
refreshes the included certificates to those contained in the 20190110
package.");

  script_tag(name:"affected", value:"'ca-certificates' package(s) on Ubuntu 16.04, Ubuntu 18.04, Ubuntu 19.10, Ubuntu 20.04.");

  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 == "UBUNTU16.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"ca-certificates", ver:"20190110~16.04.1", 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:"ca-certificates", ver:"20190110~18.04.1", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU19.10") {

  if(!isnull(res = isdpkgvuln(pkg:"ca-certificates", ver:"20190110ubuntu0.19.10.1", rls:"UBUNTU19.10"))) {
    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:"ca-certificates", ver:"20190110ubuntu1.1", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

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

exit(0);