Vulnerabilities > CVE-2018-20198 - NULL Pointer Dereference vulnerability in Audiocoding Freeware Advanced Audio Decoder 2 2.8.8

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4522. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(128782);
  script_version("1.2");
  script_cvs_date("Date: 2019/12/27");

  script_cve_id("CVE-2018-19502", "CVE-2018-19503", "CVE-2018-19504", "CVE-2018-20194", "CVE-2018-20195", "CVE-2018-20197", "CVE-2018-20198", "CVE-2018-20357", "CVE-2018-20358", "CVE-2018-20359", "CVE-2018-20361", "CVE-2018-20362", "CVE-2019-15296");
  script_xref(name:"DSA", value:"4522");

  script_name(english:"Debian DSA-4522-1 : faad2 - security update");
  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:
"Multiple vulnerabilities have been discovered in faad2, the Freeware
Advanced Audio Coder. These vulnerabilities might allow remote
attackers to cause denial-of-service, or potentially execute arbitrary
code if crafted MPEG AAC files are processed."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=914641"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/faad2"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/faad2"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2019/dsa-4522"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the faad2 packages.

For the oldstable distribution (stretch), these problems have been
fixed in version 2.8.0~cvs20161113-1+deb9u2."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:faad2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/11/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/09/16");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 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:"9.0", prefix:"faad", reference:"2.8.0~cvs20161113-1+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"faad2-dbg", reference:"2.8.0~cvs20161113-1+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"libfaad-dev", reference:"2.8.0~cvs20161113-1+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"libfaad2", reference:"2.8.0~cvs20161113-1+deb9u2")) 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");

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1791-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(125267);
  script_version("1.2");
  script_cvs_date("Date: 2020/01/15");

  script_cve_id("CVE-2018-20194", "CVE-2018-20197", "CVE-2018-20198", "CVE-2018-20362");

  script_name(english:"Debian DLA-1791-1 : faad2 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 vulnerabilities have been found in faad2, the Freeware
Advanced Audio Coder :

CVE-2018-20194 CVE-2018-20197

Improper handling of implicit channel mapping reconfiguration leads to
multiple heap based buffer overflow issues. These flaws might be
leveraged by remote attackers to cause DoS.

CVE-2018-20198 CVE-2018-20362

Insufficient user input validation in the sbr_hfadj module leads to
stack-based buffer underflow issues. These flaws might be leveraged by
remote attackers to cause DoS or any other unspecified impact.

For Debian 8 'Jessie', these problems have been fixed in version
2.7-8+deb8u2.

We recommend that you upgrade your faad2 packages.

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/2019/05/msg00022.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/faad2"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:faad");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:faad2-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libfaad-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libfaad2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/12/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/20");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2020 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:"8.0", prefix:"faad", reference:"2.7-8+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"faad2-dbg", reference:"2.7-8+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libfaad-dev", reference:"2.7-8+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libfaad2", reference:"2.7-8+deb8u2")) 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");