EulerOS 2.0 SP5 : zziplib (EulerOS-SA-2019-2236)

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

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

if (description)
{
  script_id(130698);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/15");

  script_cve_id(
    "CVE-2018-16548",
    "CVE-2018-6541",
    "CVE-2018-7725",
    "CVE-2018-7726",
    "CVE-2018-7727"
  );

  script_name(english:"EulerOS 2.0 SP5 : zziplib (EulerOS-SA-2019-2236)");

  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 zziplib package installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

  - An issue was discovered in ZZIPlib 0.13.68. An invalid
    memory address dereference was discovered in
    zzip_disk_fread in mmapped.c. The vulnerability causes
    an application crash, which leads to denial of
    service.(CVE-2018-7725 )

  - An issue was discovered in ZZIPlib 0.13.68. There is a
    bus error caused by the __zzip_parse_root_directory
    function of zip.c. Attackers could leverage this
    vulnerability to cause a denial of service via a
    crafted zip file.(CVE-2018-7726)

  - An issue was discovered in ZZIPlib 0.13.68. There is a
    memory leak triggered in the function zzip_mem_disk_new
    in memdisk.c, which will lead to a denial of service
    attack.(CVE-2018-7727)

  - In ZZIPlib 0.13.67, there is a bus error caused by
    loading of a misaligned address (when handling
    disk64_trailer local entries) in
    __zzip_fetch_disk_trailer (zzip/zip.c). Remote
    attackers could leverage this vulnerability to cause a
    denial of service via a crafted zip
    file.(CVE-2018-6541)

  - An issue was discovered in ZZIPlib through 0.13.69.
    There is a memory leak triggered in the function
    __zzip_parse_root_directory in zip.c, which will lead
    to a denial of service attack.(CVE-2018-16548)

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-2019-2236
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?51f34646");
  script_set_attribute(attribute:"solution", value:
"Update the affected zziplib packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/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:R/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-7727");

  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:"2019/10/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:zziplib");
  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) 2019-2024 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 !~ "^(5)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5", "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 = ["zziplib-0.13.62-11.eulerosv2r7"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"5", 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, "zziplib");
}