Debian DLA-131-1 : file security update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-131-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(82114);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2014-8116", "CVE-2014-8117");
  script_bugtraq_id(71692, 71700);

  script_name(english:"Debian DLA-131-1 : file security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple security issues have been found in file, a tool/library to
determine a file type. Processing a malformed file could result in
denial of service. Most of the changes are related to parsing ELF
files.

As part of the fixes, several limits on aspects of the detection were
added or tightened, sometimes resulting in messages like 'recursion
limit exceeded' or 'too many program header sections'.

To mitigate such shortcomings, these limits are controllable by a new
'-R'/'--recursion' parameter in the file program. Note: A future
upgrade for file in squeeze-lts might replace this with the '-P'
parameter to keep usage consistent across all distributions.

CVE-2014-8116

The ELF parser (readelf.c) allows remote attackers to cause a denial
of service (CPU consumption or crash).

CVE-2014-8117

softmagic.c does not properly limit recursion, which allows remote
attackers to cause a denial of service (CPU consumption or crash).

(no identifier has been assigned so far)

out-of-bounds memory access

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2015/01/msg00004.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze-lts/file"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:file");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libmagic-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libmagic1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-magic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-magic-dbg");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/01/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/26");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2021 Tenable Network Security, Inc.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"6.0", prefix:"file", reference:"5.04-5+squeeze9")) flag++;
if (deb_check(release:"6.0", prefix:"libmagic-dev", reference:"5.04-5+squeeze9")) flag++;
if (deb_check(release:"6.0", prefix:"libmagic1", reference:"5.04-5+squeeze9")) flag++;
if (deb_check(release:"6.0", prefix:"python-magic", reference:"5.04-5+squeeze9")) flag++;
if (deb_check(release:"6.0", prefix:"python-magic-dbg", reference:"5.04-5+squeeze9")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");