Vulnerabilities > CVE-2016-4493 - Out-of-bounds Read vulnerability in GNU Libiberty

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-552-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(92380);
  script_version("2.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2016-2226", "CVE-2016-4487", "CVE-2016-4488", "CVE-2016-4489", "CVE-2016-4490", "CVE-2016-4492", "CVE-2016-4493", "CVE-2016-6131");

  script_name(english:"Debian DLA-552-1 : binutils 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:
"Some minor security issues have been identified and fixed in binutils
in Debian LTS. These are :

CVE-2016-2226

Exploitable buffer overflow.

CVE-2016-4487

Invalid write due to a use-after-free to array btypevec.

CVE-2016-4488

Invalid write due to a use-after-free to array ktypevec.

CVE-2016-4489

Invalid write due to integer overflow.

CVE-2016-4490

Write access violation.

CVE-2016-4492

Write access violations.

CVE-2016-4493

Read access violations.

CVE-2016-6131

Stack buffer overflow when printing bad bytes in Intel Hex objects

For Debian 7 'Wheezy', these problems have been fixed in version
2.22-8+deb7u3.

We recommend that you upgrade your binutils 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/2016/07/msg00014.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/binutils"
  );
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:binutils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:binutils-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:binutils-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:binutils-gold");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:binutils-multiarch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:binutils-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:binutils-spu");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/07/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/07/19");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 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:"7.0", prefix:"binutils", reference:"2.22-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"binutils-dev", reference:"2.22-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"binutils-doc", reference:"2.22-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"binutils-gold", reference:"2.22-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"binutils-multiarch", reference:"2.22-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"binutils-source", reference:"2.22-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"binutils-spu", reference:"2.22-8+deb7u3")) 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 Ubuntu Security Notice USN-3337-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(100989);
  script_version("3.7");
  script_cvs_date("Date: 2019/09/18 12:31:47");

  script_cve_id("CVE-2016-2226", "CVE-2016-4487", "CVE-2016-4488", "CVE-2016-4489", "CVE-2016-4490", "CVE-2016-4491", "CVE-2016-4492", "CVE-2016-4493", "CVE-2016-6131");
  script_xref(name:"USN", value:"3337-1");

  script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS / 16.10 / 17.04 : valgrind vulnerabilities (USN-3337-1)");
  script_summary(english:"Checks dpkg output for updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Ubuntu host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that Valgrind incorectly handled certain string
operations. If a user or automated system were tricked into processing
a specially crafted binary, a remote attacker could possibly execute
arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu
16.04 LTS and Ubuntu 16.10. (CVE-2016-2226)

It was discovered that Valgrind incorrectly handled parsing certain
binaries. If a user or automated system were tricked into processing a
specially crafted binary, a remote attacker could use this issue to
cause Valgrind to crash, resulting in a denial of service.
(CVE-2016-4487, CVE-2016-4488, CVE-2016-4489, CVE-2016-4490,
CVE-2016-4491, CVE-2016-4492, CVE-2016-4493, CVE-2016-6131).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/3337-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected valgrind package."
  );
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:valgrind");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:17.04");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/02/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/06/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/22");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(14\.04|16\.04|16\.10|17\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 14.04 / 16.04 / 16.10 / 17.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"14.04", pkgname:"valgrind", pkgver:"1:3.10.1-1ubuntu3~14.5")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"valgrind", pkgver:"1:3.11.0-1ubuntu4.2")) flag++;
if (ubuntu_check(osver:"16.10", pkgname:"valgrind", pkgver:"1:3.12.0~svn20160714-1ubuntu2.1")) flag++;
if (ubuntu_check(osver:"17.04", pkgname:"valgrind", pkgver:"1:3.12.0-1ubuntu1.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "valgrind");
}