Ubuntu Update for exim4 USN-2933-1

2016-03-16T00:00:00
ID OPENVAS:1361412562310842695
Type openvas
Reporter Copyright (C) 2016 Greenbone Networks GmbH
Modified 2018-11-16T00:00:00

Description

The remote host is missing an update for the

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
#
# Ubuntu Update for exim4 USN-2933-1
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (C) 2016 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.842695");
  script_version("$Revision: 12381 $");
  script_tag(name:"last_modification", value:"$Date: 2018-11-16 12:16:30 +0100 (Fri, 16 Nov 2018) $");
  script_tag(name:"creation_date", value:"2016-03-16 06:09:39 +0100 (Wed, 16 Mar 2016)");
  script_cve_id("CVE-2016-1531", "CVE-2014-2972");
  script_tag(name:"cvss_base", value:"6.9");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"qod_type", value:"package");
  script_name("Ubuntu Update for exim4 USN-2933-1");
  script_tag(name:"summary", value:"The remote host is missing an update for the 'exim4'
  package(s) announced via the referenced advisory.");
  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
  script_tag(name:"insight", value:"It was discovered that Exim incorrectly
  filtered environment variables when used with the perl_startup configuration
  option. If the perl_startup option was enabled, a local attacker could use this
  issue to escalate their privileges to the root user. This issue has been fixed
  by having Exim clean the complete execution environment by default on startup,
  including any subprocesses such as transports that call other programs. This
  change in behaviour may break existing installations and can be adjusted by
  using two new configuration options, keep_environment and add_environment.
  (CVE-2016-1531)

  Patrick William discovered that Exim incorrectly expanded mathematical
  comparisons twice. A local attacker could possibly use this issue to
  perform arbitrary file operations as the Exim user. This issue only
  affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-2972)");
  script_tag(name:"affected", value:"exim4 on Ubuntu 15.10,
  Ubuntu 14.04 LTS,
  Ubuntu 12.04 LTS");
  script_tag(name:"solution", value:"Please Install the Updated Packages.");

  script_xref(name:"USN", value:"2933-1");
  script_xref(name:"URL", value:"http://www.ubuntu.com/usn/usn-2933-1/");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 Greenbone Networks GmbH");
  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|12\.04 LTS|15\.10)");
  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

release = dpkg_get_ssh_release();

res = "";
if(release == NULL){
  exit(0);
}

if(release == "UBUNTU14.04 LTS")
{

  if ((res = isdpkgvuln(pkg:"exim4-daemon-custom", ver:"4.82-3ubuntu2.1", rls:"UBUNTU14.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isdpkgvuln(pkg:"exim4-daemon-heavy", ver:"4.82-3ubuntu2.1", rls:"UBUNTU14.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isdpkgvuln(pkg:"exim4-daemon-light", ver:"4.82-3ubuntu2.1", rls:"UBUNTU14.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}


if(release == "UBUNTU12.04 LTS")
{

  if ((res = isdpkgvuln(pkg:"exim4-daemon-custom", ver:"4.76-3ubuntu3.3", rls:"UBUNTU12.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isdpkgvuln(pkg:"exim4-daemon-heavy", ver:"4.76-3ubuntu3.3", rls:"UBUNTU12.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isdpkgvuln(pkg:"exim4-daemon-light", ver:"4.76-3ubuntu3.3", rls:"UBUNTU12.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isdpkgvuln(pkg:"existing", ver:"installations. After performing a standard system update, the new", rls:"UBUNTU12.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isdpkgvuln(pkg:"to", ver:"adjust the new behaviour.", rls:"UBUNTU12.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}


if(release == "UBUNTU15.10")
{

  if ((res = isdpkgvuln(pkg:"exim4-daemon-heavy", ver:"4.86-3ubuntu1.1", rls:"UBUNTU15.10")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isdpkgvuln(pkg:"exim4-daemon-light", ver:"4.86-3ubuntu1.1", rls:"UBUNTU15.10")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}