EulerOS 2.0 SP2 : ImageMagick (EulerOS-SA-2021-2385)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

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

if (description)
{
  script_id(153302);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/30");

  script_cve_id(
    "CVE-2019-15139",
    "CVE-2021-20176",
    "CVE-2021-20309",
    "CVE-2021-20311",
    "CVE-2021-20312",
    "CVE-2021-20313"
  );

  script_name(english:"EulerOS 2.0 SP2 : ImageMagick (EulerOS-SA-2021-2385)");

  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 ImageMagick packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

  - A flaw was found in ImageMagick in versions before
    7.0.11 and before 6.9.12, where a division by zero in
    WaveImage() of MagickCore/visual-effects.c may trigger
    undefined behavior via a crafted image file submitted
    to an application using ImageMagick. The highest threat
    from this vulnerability is to system
    availability.(CVE-2021-20309)

  - A flaw was found in ImageMagick in versions before
    7.0.11, where a division by zero in
    sRGBTransformImage() in the MagickCore/colorspace.c may
    trigger undefined behavior via a crafted image file
    that is submitted by an attacker processed by an
    application using ImageMagick. The highest threat from
    this vulnerability is to system
    availability.(CVE-2021-20311)

  - A flaw was found in ImageMagick in versions 7.0.11,
    where an integer overflow in WriteTHUMBNAILImage of
    coders/thumbnail.c may trigger undefined behavior via a
    crafted image file that is submitted by an attacker and
    processed by an application using ImageMagick. The
    highest threat from this vulnerability is to system
    availability.(CVE-2021-20312)

  - A flaw was found in ImageMagick in versions before
    7.0.11. A potential cipher leak when the calculate
    signatures in TransformSignature is possible. The
    highest threat from this vulnerability is to data
    confidentiality.(CVE-2021-20313)

  - The XWD image (X Window System window dumping file)
    parsing component in ImageMagick 7.0.8-41 Q16 allows
    attackers to cause a denial-of-service (application
    crash resulting from an out-of-bounds Read) in
    ReadXWDImage in coders/xwd.c by crafting a corrupted
    XWD image file, a different vulnerability than
    CVE-2019-11472.(CVE-2019-15139)

  - A divide-by-zero flaw was found in ImageMagick
    6.9.11-57 and 7.0.10-57 in gem.c. This flaw allows an
    attacker who submits a crafted file that is processed
    by ImageMagick to trigger undefined behavior through a
    division by zero. The highest threat from this
    vulnerability is to system
    availability.(CVE-2021-20176)

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-2021-2385
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d84e1942");
  script_set_attribute(attribute:"solution", value:
"Update the affected ImageMagick packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  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:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-20313");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"patch_publication_date", value:"2021/09/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/09/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ImageMagick");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ImageMagick-c++");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ImageMagick-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ImageMagick-perl");
  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) 2021-2023 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 !~ "^(2)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2", "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 = ["ImageMagick-6.9.9.38-1.h17",
        "ImageMagick-c++-6.9.9.38-1.h17",
        "ImageMagick-libs-6.9.9.38-1.h17",
        "ImageMagick-perl-6.9.9.38-1.h17"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"2", 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, "ImageMagick");
}