Mandriva Linux Security Advisory : dhcp (MDVSA-2011:182)

2011-12-09T00:00:00
ID MANDRIVA_MDVSA-2011-182.NASL
Type nessus
Reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc.
Modified 2020-04-02T00:00:00

Description

A vulnerability has been discovered and corrected in dhcp :

dhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4 does not properly handle regular expressions in dhcpd.conf, which allows remote attackers to cause a denial of service (daemon crash) via a crafted request packet (CVE-2011-4539).

The updated packages have been patched to correct this issue.

                                        
                                            #%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandriva Linux Security Advisory MDVSA-2011:182. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(57052);
  script_version("1.11");
  script_cvs_date("Date: 2019/08/02 13:32:54");

  script_cve_id("CVE-2011-4539");
  script_bugtraq_id(50971);
  script_xref(name:"MDVSA", value:"2011:182");

  script_name(english:"Mandriva Linux Security Advisory : dhcp (MDVSA-2011:182)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandriva Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A vulnerability has been discovered and corrected in dhcp :

dhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4
does not properly handle regular expressions in dhcpd.conf, which
allows remote attackers to cause a denial of service (daemon crash)
via a crafted request packet (CVE-2011-4539).

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:ND/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:dhcp-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp-relay");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2010.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2011");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/12/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/12/09");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2019 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:"MDK2010.1", reference:"dhcp-client-4.1.2-0.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"dhcp-common-4.1.2-0.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"dhcp-devel-4.1.2-0.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"dhcp-doc-4.1.2-0.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"dhcp-relay-4.1.2-0.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"dhcp-server-4.1.2-0.6mdv2010.2", yank:"mdv")) flag++;

if (rpm_check(release:"MDK2011", reference:"dhcp-client-4.2.1-0.P1.2.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"dhcp-common-4.2.1-0.P1.2.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"dhcp-devel-4.2.1-0.P1.2.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"dhcp-doc-4.2.1-0.P1.2.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"dhcp-relay-4.2.1-0.P1.2.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"dhcp-server-4.2.1-0.P1.2.1-mdv2011.0", yank:"mdv")) 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");