Ubuntu: Security Advisory (USN-3212-2)

# SPDX-FileCopyrightText: 2017 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("1.3.6.1.4.1.25623.1.0.843188");
  script_tag(name:"creation_date", value:"2017-05-31 04:51:36 +0000 (Wed, 31 May 2017)");
  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-3212-2)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 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(14\.04\ LTS|16\.04\ LTS|16\.10)");

  script_xref(name:"Advisory-ID", value:"USN-3212-2");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-3212-2");
  script_xref(name:"URL", value:"https://launchpad.net/bugs/1670036");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'tiff' package(s) announced via the USN-3212-2 advisory.");

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

  script_tag(name:"insight", value:"USN-3212-1 fixed vulnerabilities in LibTIFF. Unfortunately, some of the
security patches were misapplied, which caused a regression when processing
certain images. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

 It was discovered that LibTIFF incorrectly handled certain malformed
 images. If a user or automated system were tricked into opening a specially
 crafted image, a remote attacker could crash the application, leading to a
 denial of service, or possibly execute arbitrary code with user privileges.");

  script_tag(name:"affected", value:"'tiff' package(s) on Ubuntu 14.04, Ubuntu 16.04, Ubuntu 16.10.");

  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 == "UBUNTU14.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"libtiff-tools", ver:"4.0.3-7ubuntu0.7", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libtiff5", ver:"4.0.3-7ubuntu0.7", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU16.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"libtiff-tools", ver:"4.0.6-1ubuntu0.2", rls:"UBUNTU16.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libtiff5", ver:"4.0.6-1ubuntu0.2", rls:"UBUNTU16.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU16.10") {

  if(!isnull(res = isdpkgvuln(pkg:"libtiff-tools", ver:"4.0.6-2ubuntu0.2", rls:"UBUNTU16.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libtiff5", ver:"4.0.6-2ubuntu0.2", rls:"UBUNTU16.10"))) {
    report += res;
  }

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

exit(0);