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nessusThis script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.SL_20090730_BIND_SECURITY_FOR_SL_4_X.NASL
HistoryAug 01, 2012 - 12:00 a.m.

Scientific Linux Security Update : bind security for SL 4.x on i386/x86_64

2012-08-0100:00:00
This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
17

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.965 High

EPSS

Percentile

99.6%

CVE-2009-0696 bind: DoS (assertion failure) via nsupdate packets

A flaw was found in the way BIND handles dynamic update message packets containing the β€˜ANY’ record type. A remote attacker could use this flaw to send a specially crafted dynamic update packet that could cause named to exit with an assertion failure. (CVE-2009-0696)

Note: even if named is not configured for dynamic updates, receiving such a specially crafted dynamic update packet could still cause named to exit unexpectedly.

This update also fixes the following bug :

  • when running on a system receiving a large number of (greater than 4,000) DNS requests per second, the named DNS nameserver became unresponsive, and the named service had to be restarted in order for it to continue serving requests. This was caused by a deadlock occurring between two threads that led to the inability of named to continue to service requests. This deadlock has been resolved with these updated packages so that named no longer becomes unresponsive under heavy load.
    (BZ#512668)

After installing the update, the BIND daemon (named) will be restarted automatically.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(60629);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2009-0696");

  script_name(english:"Scientific Linux Security Update : bind security for SL 4.x on i386/x86_64");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"CVE-2009-0696 bind: DoS (assertion failure) via nsupdate packets

A flaw was found in the way BIND handles dynamic update message
packets containing the 'ANY' record type. A remote attacker could use
this flaw to send a specially crafted dynamic update packet that could
cause named to exit with an assertion failure. (CVE-2009-0696)

Note: even if named is not configured for dynamic updates, receiving
such a specially crafted dynamic update packet could still cause named
to exit unexpectedly.

This update also fixes the following bug :

  - when running on a system receiving a large number of
    (greater than 4,000) DNS requests per second, the named
    DNS nameserver became unresponsive, and the named
    service had to be restarted in order for it to continue
    serving requests. This was caused by a deadlock
    occurring between two threads that led to the inability
    of named to continue to service requests. This deadlock
    has been resolved with these updated packages so that
    named no longer becomes unresponsive under heavy load.
    (BZ#512668)

After installing the update, the BIND daemon (named) will be restarted
automatically."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=512668"
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind0907&L=scientific-linux-errata&T=0&P=2682
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?96d90a76"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  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_cwe_id(16);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Scientific Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "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);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
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 (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);


flag = 0;
if (rpm_check(release:"SL4", reference:"bind-9.2.4-30.el4_8.4")) flag++;
if (rpm_check(release:"SL4", reference:"bind-chroot-9.2.4-30.el4_8.4")) flag++;
if (rpm_check(release:"SL4", reference:"bind-devel-9.2.4-30.el4_8.4")) flag++;
if (rpm_check(release:"SL4", reference:"bind-libs-9.2.4-30.el4_8.4")) flag++;
if (rpm_check(release:"SL4", reference:"bind-utils-9.2.4-30.el4_8.4")) 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");
VendorProductVersionCPE
fermilabscientific_linuxx-cpe:/o:fermilab:scientific_linux

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.965 High

EPSS

Percentile

99.6%