Ubuntu: Security Advisory (USN-4121-1)

# SPDX-FileCopyrightText: 2019 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("1.3.6.1.4.1.25623.1.0.844163");
  script_cve_id("CVE-2019-10197");
  script_tag(name:"creation_date", value:"2019-09-04 02:01:04 +0000 (Wed, 04 Sep 2019)");
  script_version("2024-02-02T05:06:07+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.4");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-09-05 21:19:15 +0000 (Thu, 05 Sep 2019)");

  script_name("Ubuntu: Security Advisory (USN-4121-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 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=UBUNTU19\.04");

  script_xref(name:"Advisory-ID", value:"USN-4121-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-4121-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'samba' package(s) announced via the USN-4121-1 advisory.");

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

  script_tag(name:"insight", value:"Stefan Metzmacher discovered that the Samba SMB server did not properly
prevent clients from escaping outside the share root directory in
some situations. An attacker could use this to gain access to files
outside of the Samba share, where allowed by the permissions of the
underlying filesystem.");

  script_tag(name:"affected", value:"'samba' package(s) on Ubuntu 19.04.");

  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 == "UBUNTU19.04") {

  if(!isnull(res = isdpkgvuln(pkg:"samba", ver:"2:4.10.0+dfsg-0ubuntu2.4", rls:"UBUNTU19.04"))) {
    report += res;
  }

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

exit(0);