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nessusThis script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.SUSE_SU-2017-1670-1.NASL
HistoryJun 27, 2017 - 12:00 a.m.

SUSE SLED12 / SLES12 Security Update : libxml2 (SUSE-SU-2017:1670-1)

2017-06-2700:00:00
This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
24

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.019

Percentile

88.9%

This update for libxml2 fixes the following issues: Security issues fixed :

  • CVE-2017-0663: Fixed a heap buffer overflow in xmlAddID (bsc#1044337)

  • CVE-2017-5969: Fixed a NULL pointer deref in xmlDumpElementContent (bsc#1024989)

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-2017:1670-1.
# The text itself is copyright (C) SUSE.
#

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

if (description)
{
  script_id(101056);
  script_version("3.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2017-0663", "CVE-2017-5969");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : libxml2 (SUSE-SU-2017:1670-1)");
  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 update for libxml2 fixes the following issues: Security issues
fixed :

  - CVE-2017-0663: Fixed a heap buffer overflow in xmlAddID
    (bsc#1044337)

  - CVE-2017-5969: Fixed a NULL pointer deref in
    xmlDumpElementContent (bsc#1024989)

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=1024989"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1044337"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-0663/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-5969/"
  );
  # https://www.suse.com/support/update/announcement/2017/suse-su-20171670-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?0763bdc2"
  );
  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 Software Development Kit 12-SP2:zypper in -t
patch SUSE-SLE-SDK-12-SP2-2017-1036=1

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2017-1036=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2017-1036=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2017-1036=1

OpenStack Cloud Magnum Orchestration 7:zypper in -t patch
SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2017-1036=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/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:L/AC:L/PR:N/UI:R/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:libxml2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxml2-2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxml2-2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxml2-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxml2-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxml2-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-libxml2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-libxml2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-libxml2-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/04/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/06/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/27");
  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:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / 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);
if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", cpu);


sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP2", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-2-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-2-debuginfo-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-debugsource-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-tools-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-tools-debuginfo-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"python-libxml2-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"python-libxml2-debuginfo-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"python-libxml2-debugsource-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-2-32bit-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-2-debuginfo-32bit-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-2-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-2-32bit-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-2-debuginfo-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-2-debuginfo-32bit-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-debugsource-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-tools-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-tools-debuginfo-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"python-libxml2-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"python-libxml2-debuginfo-2.9.4-42.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"python-libxml2-debugsource-2.9.4-42.1")) 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, "libxml2");
}

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.019

Percentile

88.9%