Oracle Linux 5 : avahi (ELSA-2011-0436)

2013-07-12T00:00:00
ID ORACLELINUX_ELSA-2011-0436.NASL
Type nessus
Reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-11-02T00:00:00

Description

From Red Hat Security Advisory 2011:0436 :

Updated avahi packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zero Configuration Networking. It facilitates service discovery on a local network. Avahi and Avahi-aware applications allow you to plug your computer into a network and, with no configuration, view other people to chat with, view printers to print to, and find shared files on other computers.

A flaw was found in the way the Avahi daemon (avahi-daemon) processed Multicast DNS (mDNS) packets with an empty payload. An attacker on the local network could use this flaw to cause avahi-daemon on a target system to enter an infinite loop via an empty mDNS UDP packet. (CVE-2011-1002)

All users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, avahi-daemon will be restarted automatically.

                                        
                                            #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2011:0436 and 
# Oracle Linux Security Advisory ELSA-2011-0436 respectively.
#

include("compat.inc");

if (description)
{
  script_id(68255);
  script_version("1.8");
  script_cvs_date("Date: 2019/10/25 13:36:09");

  script_cve_id("CVE-2011-1002");
  script_bugtraq_id(46446);
  script_xref(name:"RHSA", value:"2011:0436");

  script_name(english:"Oracle Linux 5 : avahi (ELSA-2011-0436)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2011:0436 :

Updated avahi packages that fix one security issue are now available
for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
moderate security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.

Avahi is an implementation of the DNS Service Discovery and Multicast
DNS specifications for Zero Configuration Networking. It facilitates
service discovery on a local network. Avahi and Avahi-aware
applications allow you to plug your computer into a network and, with
no configuration, view other people to chat with, view printers to
print to, and find shared files on other computers.

A flaw was found in the way the Avahi daemon (avahi-daemon) processed
Multicast DNS (mDNS) packets with an empty payload. An attacker on the
local network could use this flaw to cause avahi-daemon on a target
system to enter an infinite loop via an empty mDNS UDP packet.
(CVE-2011-1002)

All users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing the
update, avahi-daemon will be restarted automatically."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2011-April/002071.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected avahi 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:F/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:"exploit_framework_core", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:avahi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:avahi-compat-howl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:avahi-compat-howl-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:avahi-compat-libdns_sd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:avahi-compat-libdns_sd-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:avahi-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:avahi-glib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:avahi-glib-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:avahi-qt3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:avahi-qt3-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:avahi-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/02/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/04/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/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/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 5", "Oracle Linux " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

flag = 0;
if (rpm_check(release:"EL5", reference:"avahi-0.6.16-10.el5_6")) flag++;
if (rpm_check(release:"EL5", reference:"avahi-compat-howl-0.6.16-10.el5_6")) flag++;
if (rpm_check(release:"EL5", reference:"avahi-compat-howl-devel-0.6.16-10.el5_6")) flag++;
if (rpm_check(release:"EL5", reference:"avahi-compat-libdns_sd-0.6.16-10.el5_6")) flag++;
if (rpm_check(release:"EL5", reference:"avahi-compat-libdns_sd-devel-0.6.16-10.el5_6")) flag++;
if (rpm_check(release:"EL5", reference:"avahi-devel-0.6.16-10.el5_6")) flag++;
if (rpm_check(release:"EL5", reference:"avahi-glib-0.6.16-10.el5_6")) flag++;
if (rpm_check(release:"EL5", reference:"avahi-glib-devel-0.6.16-10.el5_6")) flag++;
if (rpm_check(release:"EL5", reference:"avahi-qt3-0.6.16-10.el5_6")) flag++;
if (rpm_check(release:"EL5", reference:"avahi-qt3-devel-0.6.16-10.el5_6")) flag++;
if (rpm_check(release:"EL5", reference:"avahi-tools-0.6.16-10.el5_6")) 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, "avahi / avahi-compat-howl / avahi-compat-howl-devel / etc");
}