Vulnerabilities > CVE-2006-4434 - Use After Free vulnerability in Sendmail

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update sendmail-2027.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(27446);
  script_version ("1.12");
  script_cvs_date("Date: 2019/10/25 13:36:29");

  script_cve_id("CVE-2006-4434");

  script_name(english:"openSUSE 10 Security Update : sendmail (sendmail-2027)");
  script_summary(english:"Check for the sendmail-2027 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Without this update sendmail may crash when finishing a mail due to
referencing an already freed variable (CVE-2006-4434)."
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected sendmail package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:sendmail");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:10.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/10/17");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2019 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

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

  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);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE10\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "10.1", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE10.1", reference:"sendmail-8.13.6-9.9") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "sendmail");
}

#%NASL_MIN_LEVEL 80502

# @DEPRECATED@
#
# This script has been deprecated as the associated patch is not
# currently a recommended security fix.
#
# Disabled on 2011/10/24.
#

#
# (C) Tenable Network Security, Inc.
#
#

if ( ! defined_func("bn_random") ) exit(0);
include("compat.inc");

if(description)
{
 script_id(24380);
 script_version("1.23");

 script_name(english: "Solaris 10 (sparc) : 125011-01");
 script_cve_id("CVE-2006-4434");
 script_set_attribute(attribute: "synopsis", value:
"The remote host is missing Sun Security Patch number 125011-01");
 script_set_attribute(attribute: "description", value:
'SunOS 5.10: sendmail patch.
Date this patch was last updated by Sun : Jan/29/07');
 script_set_attribute(attribute: "solution", value:
"You should install this patch for your system to be up-to-date.");
 script_set_attribute(attribute: "see_also", value:
"http://download.oracle.com/sunalerts/1000292.1.html");
 script_set_attribute(attribute: "cvss_vector", value: "CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
 script_set_attribute(attribute:"plugin_publication_date", value: "2007/02/18");
 script_cvs_date("Date: 2019/10/25 13:36:23");
 script_set_attribute(attribute:"vuln_publication_date", value: "2006/08/25");
 script_end_attributes();

 script_summary(english: "Check for patch 125011-01");
 script_category(ACT_GATHER_INFO);
 script_copyright(english:"This script is Copyright (C) 2007-2019 Tenable Network Security, Inc.");
 family["english"] = "Solaris Local Security Checks";
 script_family(english:family["english"]);
 
 script_dependencies("ssh_get_info.nasl");
 script_require_keys("Host/Solaris/showrev");
 exit(0);
}

# Deprecated.
exit(0, "The associated patch is not currently a recommended security fix.");

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text in this plugin was
# extracted from the Oracle SunOS Patch Updates.
#
include("compat.inc");

if (description)
{
  script_id(13541);
  script_version("1.39");
  script_cvs_date("Date: 2019/10/25 13:36:25");

  script_cve_id("CVE-2006-0058", "CVE-2006-1173", "CVE-2006-4434");

  script_name(english:"Solaris 9 (sparc) : 113575-11");
  script_summary(english:"Check for patch 113575-11");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote host is missing Sun Security Patch number 113575-11"
  );
  script_set_attribute(
    attribute:"description", 
    value:
"SunOS 5.9: sendmail patch.
Date this patch was last updated by Sun : Feb/05/08"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://getupdates.oracle.com/readme/113575-11"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"You should install this patch for your system to be up-to-date."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:sun:solaris");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/02/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/07/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2019 Tenable Network Security, Inc.");
  script_family(english:"Solaris Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Solaris/showrev");

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

if (solaris_check_patch(release:"5.9", arch:"sparc", patch:"113575-11", obsoleted_by:"", package:"SUNWsndmr", version:"11.9.0,REV=2002.04.06.15.27") < 0) flag++;
if (solaris_check_patch(release:"5.9", arch:"sparc", patch:"113575-11", obsoleted_by:"", package:"SUNWsndmu", version:"11.9.0,REV=2002.04.06.15.27") < 0) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:solaris_get_report());
  else security_hole(0);
  exit(0);
}
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-1164. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(22706);
  script_version("1.17");
  script_cvs_date("Date: 2019/08/02 13:32:19");

  script_cve_id("CVE-2006-4434");
  script_bugtraq_id(19714);
  script_xref(name:"DSA", value:"1164");

  script_name(english:"Debian DSA-1164-1 : sendmail - programming error");
  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:
"A programming error has been discovered in sendmail, an alternative
mail transport agent for Debian, that could allow a remote attacker to
crash the sendmail process by sending a specially crafted email
message.

Please note that in order to install this update you also need
libsasl2 library from proposed updates as outlined in DSA 1155-2."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=385054"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2006/dsa-1164"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the sendmail package.

For the stable distribution (sarge) this problem has been fixed in
version 8.13.3-3sarge3."
  );
  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:sendmail");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/10/14");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/08/25");
  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:"libmilter-dev", reference:"8.13.4-3sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"libmilter0", reference:"8.13.4-3sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"rmail", reference:"8.13.4-3sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"sendmail", reference:"8.13.4-3sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"sendmail-base", reference:"8.13.4-3sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"sendmail-bin", reference:"8.13.4-3sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"sendmail-cf", reference:"8.13.4-3sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"sendmail-doc", reference:"8.13.4-3sarge3")) flag++;
if (deb_check(release:"3.1", prefix:"sensible-mda", reference:"8.13.4-3sarge3")) 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");

#%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-2006:156. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(23900);
  script_version ("1.17");
  script_cvs_date("Date: 2019/08/02 13:32:48");

  script_cve_id("CVE-2006-4434");
  script_bugtraq_id(19714);
  script_xref(name:"MDKSA", value:"2006:156");

  script_name(english:"Mandrake Linux Security Advisory : sendmail (MDKSA-2006:156)");
  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:
"Moritz Jodeit discovered a vulnerability in sendmail when processing
very long header lines that could be exploited to cause a Denial of
Service by crashing sendmail.

The 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: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:mandriva:linux:sendmail");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:sendmail-cf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:sendmail-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:sendmail-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2006");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/30");
  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 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"sendmail-8.13.4-6.3.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", reference:"sendmail-cf-8.13.4-6.3.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", reference:"sendmail-devel-8.13.4-6.3.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", reference:"sendmail-doc-8.13.4-6.3.20060mdk", yank:"mdk")) flag++;


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

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The text description of this plugin is (C) Novell, Inc.
#

include("compat.inc");

if (description)
{
  script_id(29579);
  script_version ("1.12");
  script_cvs_date("Date: 2019/10/25 13:36:29");

  script_cve_id("CVE-2006-4434");

  script_name(english:"SuSE 10 Security Update : sendmail (ZYPP Patch Number 2030)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SuSE 10 host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Without this update sendmail may crash when finishing a mail due to
referencing an already freed variable. (CVE-2006-4434)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2006-4434.html"
  );
  script_set_attribute(attribute:"solution", value:"Apply ZYPP patch number 2030.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:suse:suse_linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/12/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2019 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

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

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) exit(0, "Local checks are not enabled.");
if (!get_kb_item("Host/SuSE/release")) exit(0, "The host is not running SuSE.");
if (!get_kb_item("Host/SuSE/rpm-list")) exit(1, "Could not obtain the list of installed packages.");

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) exit(1, "Failed to determine the architecture type.");
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") exit(1, "Local checks for SuSE 10 on the '"+cpu+"' architecture have not been implemented.");


flag = 0;
if (rpm_check(release:"SLED10", sp:0, reference:"sendmail-8.13.6-9.9")) flag++;
if (rpm_check(release:"SLES10", sp:0, reference:"sendmail-8.13.6-9.9")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else exit(0, "The host is not affected.");

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(17724);
  script_version("1.8");
  script_cvs_date("Date: 2018/09/17 21:46:53");

  script_cve_id("CVE-2006-4434");
  script_bugtraq_id(19714);

  script_name(english:"Sendmail < 8.13.8 Header Processing Overflow DoS");
  script_summary(english:"Checks the version of Sendmail.");

  script_set_attribute(attribute:"synopsis", value:
"The remote mail server is susceptible to a denial of service
attack.");
  script_set_attribute(attribute:"description", value:
"The remote mail server is running a version of Sendmail earlier than
8.13.8. Such versions are reportedly affected by a use-after-free flaw
that may allow an attacker to crash the server.");
  script_set_attribute(attribute:"see_also", value:"http://www.sendmail.org/releases/8.13.8.php");
  script_set_attribute(attribute:"solution", value:"Upgrade to Sendmail 8.13.8 or later.");
  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_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2006-4434");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2006/08/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/11/18");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:sendmail:sendmail");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SMTP problems");

  script_dependencies("sendmail_detect.nbin");
  script_require_keys("installed_sw/Sendmail");
  exit(0);
}

include("vcf.inc");

app_info = vcf::get_app_info(app:"Sendmail");

constraints = [{ "fixed_version" : "8.13.8" }];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);