SUSE SLES12 Security Update : ntp (SUSE-SU-2017:1047-1)

2017-04-19T00:00:00
ID SUSE_SU-2017-1047-1.NASL
Type nessus
Reporter This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2017-04-19T00:00:00

Description

This ntp update to version 4.2.8p10 fixes serveral issues. This updated enables leap smearing. See /usr/share/doc/packages/ntp/README.leapsmear for details. Security issues fixed (bsc#1030050) :

  • CVE-2017-6464: Denial of Service via Malformed Config

  • CVE-2017-6462: Buffer Overflow in DPTS Clock

  • CVE-2017-6463: Authenticated DoS via Malicious Config Option

  • CVE-2017-6458: Potential Overflows in ctl_put() functions

  • CVE-2017-6451: Improper use of snprintf() in mx4200_send()

  • CVE-2017-6460: Buffer Overflow in ntpq when fetching reslist

  • CVE-2016-9042: 0rigin (zero origin) DoS.

  • ntpq_stripquotes() returns incorrect Value

  • ereallocarray()/eallocarray() underused

  • Copious amounts of Unused Code

  • Off-by-one in Oncore GPS Receiver

  • Makefile does not enforce Security Flags Bugfixes :

  • Remove spurious log messages (bsc#1014172).

  • clang scan-build findings

  • Support for openssl-1.1.0 without compatibility modes

  • Bugfix 3072 breaks multicastclient

  • forking async worker: interrupted pipe I/O

  • (...) time_pps_create: Exec format error

  • Incorrect Logic for Peer Event Limiting

  • Change the process name of forked DNS worker

  • Trap Configuration Fail

  • Nothing happens if minsane

  • allow -4/-6 on restrict line with mask

  • out-of-bound pointers in ctl_putsys and decode_bitflags

  • Move ntp-kod to /var/lib/ntp, because /var/db is not a standard directory and causes problems for transactional updates.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2017:1047-1.
# The text itself is copyright (C) SUSE.
#

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

if (description)
{
  script_id(99467);
  script_version("3.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2016-9042", "CVE-2017-6451", "CVE-2017-6458", "CVE-2017-6460", "CVE-2017-6462", "CVE-2017-6463", "CVE-2017-6464");

  script_name(english:"SUSE SLES12 Security Update : ntp (SUSE-SU-2017:1047-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This ntp update to version 4.2.8p10 fixes serveral issues. This
updated enables leap smearing. See
/usr/share/doc/packages/ntp/README.leapsmear for details. Security
issues fixed (bsc#1030050) :

  - CVE-2017-6464: Denial of Service via Malformed Config

  - CVE-2017-6462: Buffer Overflow in DPTS Clock

  - CVE-2017-6463: Authenticated DoS via Malicious Config
    Option

  - CVE-2017-6458: Potential Overflows in ctl_put()
    functions

  - CVE-2017-6451: Improper use of snprintf() in
    mx4200_send()

  - CVE-2017-6460: Buffer Overflow in ntpq when fetching
    reslist

  - CVE-2016-9042: 0rigin (zero origin) DoS.

  - ntpq_stripquotes() returns incorrect Value

  - ereallocarray()/eallocarray() underused

  - Copious amounts of Unused Code

  - Off-by-one in Oncore GPS Receiver

  - Makefile does not enforce Security Flags Bugfixes :

  - Remove spurious log messages (bsc#1014172).

  - clang scan-build findings

  - Support for openssl-1.1.0 without compatibility modes

  - Bugfix 3072 breaks multicastclient

  - forking async worker: interrupted pipe I/O

  - (...) time_pps_create: Exec format error

  - Incorrect Logic for Peer Event Limiting

  - Change the process name of forked DNS worker

  - Trap Configuration Fail

  - Nothing happens if minsane 

  - allow -4/-6 on restrict line with mask

  - out-of-bound pointers in ctl_putsys and decode_bitflags

  - Move ntp-kod to /var/lib/ntp, because /var/db is not a
    standard directory and causes problems for transactional
    updates.

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1014172"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1030050"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9042/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-6451/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-6458/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-6460/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-6462/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-6463/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-6464/"
  );
  # https://www.suse.com/support/update/announcement/2017/suse-su-20171047-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ad1585a6"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server for SAP 12:zypper in -t patch
SUSE-SLE-SAP-12-2017-612=1

SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-2017-612=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/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:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:novell:suse_linux:ntp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ntp-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ntp-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ntp-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/03/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/04/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/19");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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("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, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver);

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

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP0", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"0", reference:"ntp-4.2.8p10-46.23.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"ntp-debuginfo-4.2.8p10-46.23.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"ntp-debugsource-4.2.8p10-46.23.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"ntp-doc-4.2.8p10-46.23.1")) 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, "ntp");
}