EulerOS 2.0 SP2 : libpng (EulerOS-SA-2020-1661)

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

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

if (description)
{
  script_id(137503);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/06");

  script_cve_id("CVE-2014-9495", "CVE-2015-0973", "CVE-2015-8472");
  script_bugtraq_id(71820, 71994);

  script_name(english:"EulerOS 2.0 SP2 : libpng (EulerOS-SA-2020-1661)");

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

  - Heap-based buffer overflow in the png_combine_row
    function in libpng before 1.5.21 and 1.6.x before
    1.6.16, when running on 64-bit systems, might allow
    context-dependent attackers to execute arbitrary code
    via a 'very wide interlaced' PNG image.(CVE-2014-9495)

  - Buffer overflow in the png_read_IDAT_data function in
    pngrutil.c in libpng before 1.5.21 and 1.6.x before
    1.6.16 allows context-dependent attackers to execute
    arbitrary code via IDAT data with a large width, a
    different vulnerability than
    CVE-2014-9495.(CVE-2015-0973)

  - Buffer overflow in the png_set_PLTE function in libpng
    before 1.0.65, 1.1.x and 1.2.x before 1.2.55, 1.3.x,
    1.4.x before 1.4.18, 1.5.x before 1.5.25, and 1.6.x
    before 1.6.20 allows remote attackers to cause a denial
    of service (application crash) or possibly have
    unspecified other impact via a small bit-depth value in
    an IHDR (aka image header) chunk in a PNG image. NOTE:
    this vulnerability exists because of an incomplete fix
    for CVE-2015-8126.(CVE-2015-8472)

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-2020-1661
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?bb5832f6");
  script_set_attribute(attribute:"solution", value:
"Update the affected libpng packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:L/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2014-9495");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2015-8472");

  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:"2020/06/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/06/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libpng");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libpng-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) 2020-2024 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 = ["libpng-1.5.13-7.h8",
        "libpng-devel-1.5.13-7.h8"];

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_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, "libpng");
}