Vulnerabilities > CVE-2017-17484 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Icu-Project International Components for Unicode 4.4.1/4.4.2

#%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-2018-517.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(110107);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2014-8146", "CVE-2014-8147", "CVE-2016-6293", "CVE-2017-14952", "CVE-2017-15422", "CVE-2017-17484", "CVE-2017-7867", "CVE-2017-7868");

  script_name(english:"openSUSE Security Update : icu (openSUSE-2018-517)");
  script_summary(english:"Check for the openSUSE-2018-517 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"icu was updated to fix two security issues.

These security issues were fixed :

  - CVE-2014-8147: The resolveImplicitLevels function in
    common/ubidi.c in the Unicode Bidirectional Algorithm
    implementation in ICU4C in International Components for
    Unicode (ICU) used an integer data type that is
    inconsistent with a header file, which allowed remote
    attackers to cause a denial of service (incorrect malloc
    followed by invalid free) or possibly execute arbitrary
    code via crafted text (bsc#929629).

  - CVE-2014-8146: The resolveImplicitLevels function in
    common/ubidi.c in the Unicode Bidirectional Algorithm
    implementation in ICU4C in International Components for
    Unicode (ICU) did not properly track directionally
    isolated pieces of text, which allowed remote attackers
    to cause a denial of service (heap-based buffer
    overflow) or possibly execute arbitrary code via crafted
    text (bsc#929629).

  - CVE-2016-6293: The uloc_acceptLanguageFromHTTP function
    in common/uloc.cpp in International Components for
    Unicode (ICU) for C/C++ did not ensure that there is a
    '\0' character at the end of a certain temporary array,
    which allowed remote attackers to cause a denial of
    service (out-of-bounds read) or possibly have
    unspecified other impact via a call with a long
    httpAcceptLanguage argument (bsc#990636).

  - CVE-2017-7868: International Components for Unicode
    (ICU) for C/C++ 2017-02-13 has an out-of-bounds write
    caused by a heap-based buffer overflow related to the
    utf8TextAccess function in common/utext.cpp and the
    utext_moveIndex32* function (bsc#1034674)

  - CVE-2017-7867: International Components for Unicode
    (ICU) for C/C++ 2017-02-13 has an out-of-bounds write
    caused by a heap-based buffer overflow related to the
    utf8TextAccess function in common/utext.cpp and the
    utext_setNativeIndex* function (bsc#1034678)

  - CVE-2017-14952: Double free in i18n/zonemeta.cpp in
    International Components for Unicode (ICU) for C/C++
    allowed remote attackers to execute arbitrary code via a
    crafted string, aka a 'redundant UVector entry clean up
    function call' issue (bnc#1067203)

  - CVE-2017-17484: The ucnv_UTF8FromUTF8 function in
    ucnv_u8.cpp in International Components for Unicode
    (ICU) for C/C++ mishandled ucnv_convertEx calls for
    UTF-8 to UTF-8 conversion, which allowed remote
    attackers to cause a denial of service (stack-based
    buffer overflow and application crash) or possibly have
    unspecified other impact via a crafted string, as
    demonstrated by ZNC (bnc#1072193)

  - CVE-2017-15422: An integer overflow in icu during
    persian calendar date processing could lead to incorrect
    years shown (bnc#1077999)

This update was imported from the SUSE:SLE-12:Update update project."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1034674"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1034678"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1067203"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1072193"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1077999"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1087932"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=929629"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=990636"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected icu packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:icu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:icu-data");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:icu-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:icu-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libicu-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libicu-devel-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libicu52_1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libicu52_1-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libicu52_1-data");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libicu52_1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libicu52_1-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.3");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/05/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/05/25");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2020 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/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\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "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:"SUSE42.3", reference:"icu-52.1-18.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"icu-data-52.1-18.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"icu-debuginfo-52.1-18.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"icu-debugsource-52.1-18.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"libicu-devel-52.1-18.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"libicu52_1-52.1-18.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"libicu52_1-data-52.1-18.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"libicu52_1-debuginfo-52.1-18.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"libicu-devel-32bit-52.1-18.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"libicu52_1-32bit-52.1-18.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"libicu52_1-debuginfo-32bit-52.1-18.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "icu / icu-data / icu-debuginfo / icu-debugsource / etc");
}

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

include("compat.inc");

if (description)
{
  script_id(131477);
  script_version("1.2");
  script_cvs_date("Date: 2019/12/10");

  script_cve_id(
    "CVE-2017-17484"
  );

  script_name(english:"EulerOS Virtualization for ARM 64 3.0.3.0 : icu (EulerOS-SA-2019-2312)");
  script_summary(english:"Checks the rpm output for the updated package.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization for ARM 64 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the icu package installed, the EulerOS
Virtualization for ARM 64 installation on the remote host is affected
by the following vulnerability :

  - The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in
    International Components for Unicode (ICU) for C/C++
    through 60.1 mishandles ucnv_convertEx calls for UTF-8
    to UTF-8 conversion, which allows remote attackers to
    cause a denial of service (stack-based buffer overflow
    and application crash) or possibly have unspecified
    other impact via a crafted string, as demonstrated by
    ZNC.(CVE-2017-17484)

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-2019-2312
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?04322c61");
  script_set_attribute(attribute:"solution", value:
"Update the affected icu package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:N/AC:L/PR:N/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:"patch_publication_date", value:"2019/12/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libicu");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.3.0");
  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 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "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");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.3.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.3.0");
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 ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

flag = 0;

pkgs = ["libicu-62.1-2.eulerosv2r8"];

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

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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, "icu");
}