Vulnerabilities > CVE-2016-5827 - Out-of-bounds Read vulnerability in Libical Project Libical 0.47/1.0.0

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2017-869.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(102058);
  script_version("3.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-5824", "CVE-2016-5827", "CVE-2016-9584");

  script_name(english:"openSUSE Security Update : libical (openSUSE-2017-869)");
  script_summary(english:"Check for the openSUSE-2017-869 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for libical fixes the following issues :

Security issues fixed :

  - CVE-2016-5824: libical 1.0 allows remote attackers to
    cause a denial of service (use-after-free) via a crafted
    ics file. (bsc#986639)

  - CVE-2016-5827: The icaltime_from_string function in
    libical 0.47 and 1.0 allows remote attackers to cause a
    denial of service (out-of-bounds heap read) via a
    crafted string to the icalparser_parse_string function.
    (bsc#986631)

  - CVE-2016-9584: libical allows remote attackers to cause
    a denial of service (use-after-free) and possibly read
    heap memory via a crafted ics file. (bsc#1015964)

Bug fixes :

  - libical crashes while parsing timezones (bsc#1044995)

This update was imported from the SUSE:SLE-12-SP2:Update update
project."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1015964"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1044995"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=986631"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=986639"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libical packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libical-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libical-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libical-devel-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libical1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libical1-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libical1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libical1-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.3");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/07/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/31");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  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, "openSUSE");
if (release !~ "^(SUSE42\.2|SUSE42\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.2 / 42.3", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE42.2", reference:"libical-debugsource-1.0.1-13.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libical-devel-1.0.1-13.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libical-devel-static-1.0.1-13.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libical1-1.0.1-13.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libical1-debuginfo-1.0.1-13.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libical1-32bit-1.0.1-13.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libical1-debuginfo-32bit-1.0.1-13.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"libical-debugsource-1.0.1-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"libical-devel-1.0.1-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"libical-devel-static-1.0.1-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"libical1-1.0.1-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"libical1-debuginfo-1.0.1-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"libical1-32bit-1.0.1-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"libical1-debuginfo-32bit-1.0.1-16.1") ) 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, "libical-debugsource / libical-devel / libical-devel-static / etc");
}

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(132142);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/07");

  script_cve_id(
    "CVE-2016-5827",
    "CVE-2016-9584"
  );

  script_name(english:"EulerOS 2.0 SP3 : libical (EulerOS-SA-2019-2607)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the libical packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

  - libical allows remote attackers to cause a denial of
    service (use-after-free) and possibly read heap memory
    via a crafted ics file.(CVE-2016-9584)

  - The icaltime_from_string function in libical 0.47 and
    1.0 allows remote attackers to cause a denial of
    service (out-of-bounds heap read) via a crafted string
    to the icalparser_parse_string function.(CVE-2016-5827)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-2607
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e14af415");
  script_set_attribute(attribute:"solution", value:
"Update the affected libical packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/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:N/UI:N/S:U/C:H/I:N/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:"patch_publication_date", value:"2019/12/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libical");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libical-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(3)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3", "EulerOS UVP " + uvp);

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

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["libical-1.0.1-1.h2",
        "libical-devel-1.0.1-1.h2"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"3", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libical");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:0119-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(106130);
  script_version("3.6");
  script_cvs_date("Date: 2019/09/10 13:51:46");

  script_cve_id("CVE-2016-5823", "CVE-2016-5824", "CVE-2016-5825", "CVE-2016-5826", "CVE-2016-5827", "CVE-2016-9584");

  script_name(english:"SUSE SLES11 Security Update : Recommended update for libical (SUSE-SU-2018:0119-1)");
  script_summary(english:"Checks rpm output for the updated package.");

  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 libical fixes the following issues: Security issues
fixed :

  - CVE-2016-5823: The icalproperty_new_clone function in
    libical 0.47 and 1.0 allows remote attackers to cause a
    denial of service (use-after-free) via a crafted ics
    file. (bnc#986632)

  - CVE-2016-5824: libical 1.0 allows remote attackers to
    cause a denial of service (use-after-free) via a crafted
    ics file. (bsc#986639)

  - CVE-2016-5825: The icalparser_parse_string function in
    libical 0.47 and 1.0 allows remote attackers to cause a
    denial of service (out-of-bounds heap read) via a
    crafted ics file. (bsc#986642)

  - CVE-2016-5826: The parser_get_next_char function in
    libical 0.47 and 1.0 allows remote attackers to cause a
    denial of service (out-of-bounds heap read) by crafting
    a string to the icalparser_parse_string function.
    (bsc#986658)

  - CVE-2016-5827: The icaltime_from_string function in
    libical 0.47 and 1.0 allows remote attackers to cause a
    denial of service (out-of-bounds heap read) via a
    crafted string to the icalparser_parse_string function.
    (bsc#986631)

  - CVE-2016-9584: libical allows remote attackers to cause
    a denial of service (use-after-free) and possibly read
    heap memory via a crafted ics file. (bnc#1015964) Bug
    fixes :

  - libical crashes while parsing timezones (bsc#1044995)

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=1015964"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1044995"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=986631"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=986632"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=986639"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=986642"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=986658"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-5823/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-5824/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-5825/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-5826/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-5827/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9584/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20180119-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?13798110"
  );
  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 11-SP4:zypper in -t
patch sdksp4-libical-13417=1

SUSE Linux Enterprise Server 11-SP4:zypper in -t patch
slessp4-libical-13417=1

SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch
dbgsp4-libical-13417=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/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:N/UI:N/S:U/C:H/I:N/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:libical0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/01/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/18");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 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:"^(SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES11", "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 == "SLES11" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"libical0-32bit-0.43-1.10.6.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"s390x", reference:"libical0-32bit-0.43-1.10.6.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"libical0-0.43-1.10.6.1")) 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, "Recommended update for libical");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2017:1989-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(102067);
  script_version("3.7");
  script_cvs_date("Date: 2019/09/11 11:22:16");

  script_cve_id("CVE-2016-5824", "CVE-2016-5827", "CVE-2016-9584");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : libical (SUSE-SU-2017:1989-1)");
  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 libical fixes the following issues: Security issues
fixed :

  - CVE-2016-5824: libical 1.0 allows remote attackers to
    cause a denial of service (use-after-free) via a crafted
    ics file. (bsc#986639)

  - CVE-2016-5827: The icaltime_from_string function in
    libical 0.47 and 1.0 allows remote attackers to cause a
    denial of service (out-of-bounds heap read) via a
    crafted string to the icalparser_parse_string function.
    (bsc#986631)

  - CVE-2016-9584: libical allows remote attackers to cause
    a denial of service (use-after-free) and possibly read
    heap memory via a crafted ics file. (bsc#1015964) Bug
    fixes :

  - libical crashes while parsing timezones (bsc#1044995)

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=1015964"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1044995"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=986631"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=986639"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-5824/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-5827/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9584/"
  );
  # https://www.suse.com/support/update/announcement/2017/suse-su-20171989-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?daf7d91f"
  );
  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-SP3:zypper in -t
patch SUSE-SLE-SDK-12-SP3-2017-1230=1

SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t
patch SUSE-SLE-SDK-12-SP2-2017-1230=1

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2017-1230=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2017-1230=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2017-1230=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP3-2017-1230=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2017-1230=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/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:N/UI:N/S:U/C:H/I:N/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:libical-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libical1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libical1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/01/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/07/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/31");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2019 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);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2/3", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP2/3", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"3", reference:"libical-debugsource-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libical1-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libical1-debuginfo-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libical1-32bit-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libical1-debuginfo-32bit-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libical-debugsource-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libical1-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libical1-debuginfo-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libical1-32bit-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libical1-debuginfo-32bit-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libical-debugsource-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libical1-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libical1-32bit-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libical1-debuginfo-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libical1-debuginfo-32bit-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libical-debugsource-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libical1-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libical1-32bit-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libical1-debuginfo-1.0.1-16.3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libical1-debuginfo-32bit-1.0.1-16.3.1")) 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, "libical");
}