Debian DSA-2547-1 : bind9 - improper assert

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2547. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(62067);
  script_version("1.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2012-4244");
  script_xref(name:"DSA", value:"2547");

  script_name(english:"Debian DSA-2547-1 : bind9 - improper assert");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that BIND, a DNS server, does not handle DNS records
properly which approach size limits inherent to the DNS protocol. An
attacker could use crafted DNS records to crash the BIND server
process, leading to a denial of service."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/bind9"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2012/dsa-2547"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the bind9 packages.

For the stable distribution (squeeze), this problem has been fixed in
version 1:9.7.3.dfsg-1~squeeze7."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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:bind9");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/09/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/09/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"bind9", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"bind9-doc", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"bind9-host", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"bind9utils", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"dnsutils", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"host", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"libbind-dev", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"libbind9-60", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"libdns69", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"libisc62", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"libisccc60", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"libisccfg62", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"liblwres60", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;
if (deb_check(release:"6.0", prefix:"lwresd", reference:"1:9.7.3.dfsg-1~squeeze7")) flag++;

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