Vulnerabilities > CVE-2006-4018 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Clamav

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandrake Linux Security Advisory MDKSA-2006:138. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(23887);
  script_version ("1.15");
  script_cvs_date("Date: 2019/08/02 13:32:48");

  script_cve_id("CVE-2006-4018");
  script_xref(name:"MDKSA", value:"2006:138");

  script_name(english:"Mandrake Linux Security Advisory : clamav (MDKSA-2006:138)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandrake Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Damian Put discovered a boundary error in the UPX extraction module in
ClamAV which is used to unpack PE Windows executables. This could be
abused to cause a Denial of Service issue and potentially allow for
the execution of arbitrary code with the permissions of the user
running clamscan or clamd.

Updated packages have been patched to correct this issue."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:clamav");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:clamav-db");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:clamav-milter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:clamd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64clamav1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64clamav1-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libclamav1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libclamav1-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2006");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/12/16");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2019 Tenable Network Security, Inc.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK2006.0", reference:"clamav-0.88.4-0.1.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", reference:"clamav-db-0.88.4-0.1.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", reference:"clamav-milter-0.88.4-0.1.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", reference:"clamd-0.88.4-0.1.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", cpu:"x86_64", reference:"lib64clamav1-0.88.4-0.1.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", cpu:"x86_64", reference:"lib64clamav1-devel-0.88.4-0.1.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", cpu:"i386", reference:"libclamav1-0.88.4-0.1.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", cpu:"i386", reference:"libclamav1-devel-0.88.4-0.1.20060mdk", yank:"mdk")) flag++;


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

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-1153. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(22695);
  script_version("1.19");
  script_cvs_date("Date: 2019/08/02 13:32:19");

  script_cve_id("CVE-2006-4018");
  script_bugtraq_id(19381);
  script_xref(name:"DSA", value:"1153");

  script_name(english:"Debian DSA-1153-1 : clamav - buffer overflow");
  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:
"Damian Put discovered a heap overflow vulnerability in the UPX
unpacker of the ClamAV anti-virus toolkit which could allow remote
attackers to execute arbitrary code or cause denial of service."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2006/dsa-1153"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the clamav packages.

For the stable distribution (sarge) this problem has been fixed in
version 0.84-2.sarge.10.

For the stable distribution (sarge) this problem has been fixed in
version 0.88.4-0volatile1 in the volatile archive."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/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:clamav");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/10/14");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/08/06");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2019 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:"3.1", prefix:"clamav", reference:"0.84-2.sarge.10")) flag++;
if (deb_check(release:"3.1", prefix:"clamav-base", reference:"0.84-2.sarge.10")) flag++;
if (deb_check(release:"3.1", prefix:"clamav-daemon", reference:"0.84-2.sarge.10")) flag++;
if (deb_check(release:"3.1", prefix:"clamav-docs", reference:"0.84-2.sarge.10")) flag++;
if (deb_check(release:"3.1", prefix:"clamav-freshclam", reference:"0.84-2.sarge.10")) flag++;
if (deb_check(release:"3.1", prefix:"clamav-milter", reference:"0.84-2.sarge.10")) flag++;
if (deb_check(release:"3.1", prefix:"clamav-testfiles", reference:"0.84-2.sarge.10")) flag++;
if (deb_check(release:"3.1", prefix:"libclamav-dev", reference:"0.84-2.sarge.10")) flag++;
if (deb_check(release:"3.1", prefix:"libclamav1", reference:"0.84-2.sarge.10")) 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");

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(22198);
  script_version("1.11");
  script_cvs_date("Date: 2019/08/02 13:32:38");

  script_cve_id("CVE-2006-4018");

  script_name(english:"FreeBSD : clamav -- heap overflow vulnerability (342d2e48-26db-11db-9275-000475abc56f)");
  script_summary(english:"Checks for updated packages in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote FreeBSD host is missing one or more security-related
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Clamav team reports :

A heap overflow vulnerability was discovered in libclamav which could
cause a denial of service or allow the execution of arbitrary code.

The problem is specifically located in the PE file rebuild function
used by the UPX unpacker.

Relevant code from libclamav/upx.c :

memcpy(dst, newbuf, foffset); *dsize = foffset; free(newbuf);

cli_dbgmsg('UPX: PE structure rebuilt from compressed file\n'); return
1;

Due to improper validation it is possible to overflow the above
memcpy() beyond the allocated memory block."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.clamav.net/security/0.88.4.html"
  );
  # https://vuxml.freebsd.org/freebsd/342d2e48-26db-11db-9275-000475abc56f.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?3f9f09ac"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:clamav");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:clamav-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2006/08/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/08/10");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"clamav>=0.88.1<0.88.4")) flag++;
if (pkg_test(save_report:TRUE, pkg:"clamav-devel<20060808")) flag++;

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

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200608-13.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(22199);
  script_version("1.13");
  script_cvs_date("Date: 2019/08/02 13:32:43");

  script_cve_id("CVE-2006-4018");
  script_xref(name:"GLSA", value:"200608-13");

  script_name(english:"GLSA-200608-13 : ClamAV: Heap buffer overflow");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-200608-13
(ClamAV: Heap buffer overflow)

    Damian Put has discovered a boundary error in the pefromupx() function
    used by the UPX extraction module, which unpacks PE Windows executable
    files. Both the 'clamscan' command-line utility and the 'clamd' daemon
    are affected.
  
Impact :

    By sending a malicious attachment to a mail server running ClamAV, a
    remote attacker can cause a Denial of Service and potentially the
    execution of arbitrary code with the permissions of the user running
    ClamAV.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.clamav.net/security/0.88.4.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200608-13"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All ClamAV users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=app-antivirus/clamav-0.88.4'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:clamav");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/08/10");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/08/06");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2019 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"app-antivirus/clamav", unaffected:make_list("ge 0.88.4"), vulnerable:make_list("lt 0.88.4"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ClamAV");
}