EulerOS Virtualization for ARM 64 3.0.2.0 : glibc (EulerOS-SA-2021-1382)

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

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

if (description)
{
  script_id(147455);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/11");

  script_cve_id(
    "CVE-2019-25013",
    "CVE-2020-29562",
    "CVE-2020-29573",
    "CVE-2021-3326"
  );

  script_name(english:"EulerOS Virtualization for ARM 64 3.0.2.0 : glibc (EulerOS-SA-2021-1382)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization for ARM 64 host is missing multiple security
updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the glibc packages installed, the
EulerOS Virtualization for ARM 64 installation on the remote host is
affected by the following vulnerabilities :

  - sysdeps/i386/ldbl2mpn.c in the GNU C Library (aka glibc
    or libc6) before 2.23 on x86 targets has a stack-based
    buffer overflow if the input to any of the printf
    family of functions is an 80-bit long double with a
    non-canonical bit pattern, as seen when passing a
    \x00\x04\x00\x00\x00\x00\x00\x00\x00\x04 value to
    sprintf. NOTE: the issue does not affect glibc by
    default in 2016 or later (i.e., 2.23 or later) because
    of commits made in 2015 for inlining of C99 math
    functions through use of GCC built-ins. In other words,
    the reference to 2.23 is intentional despite the
    mention of 'Fixed for glibc 2.33' in the 26649
    reference.(CVE-2020-29573)

  - The iconv function in the GNU C Library (aka glibc or
    libc6) 2.30 to 2.32, when converting UCS4 text
    containing an irreversible character, fails an
    assertion in the code path and aborts the program,
    potentially resulting in a denial of
    service.(CVE-2020-29562)

  - A flaw was found in glibc. When processing input in the
    EUC-KR encoding, an invalid input sequence could cause
    glibc to read beyond the end of a buffer, resulting in
    a segmentation fault. The highest threat from this
    vulnerability is to system
    availability.(CVE-2019-25013)

  - The iconv function in the GNU C Library (aka glibc or
    libc6) 2.32 and earlier, when processing invalid input
    sequences in the ISO-2022-JP-3 encoding, fails an
    assertion in the code path and aborts the program,
    potentially resulting in a denial of
    service.(CVE-2021-3326)

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-2021-1382
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9d455812");
  script_set_attribute(attribute:"solution", value:
"Update the affected glibc packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/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: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-2019-25013");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-3326");

  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:"2021/03/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-all-langpacks");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-headers");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.0");
  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) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/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 != "3.0.2.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.2.0");
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 = ["glibc-2.28-9.h55",
        "glibc-all-langpacks-2.28-9.h55",
        "glibc-common-2.28-9.h55",
        "glibc-devel-2.28-9.h55",
        "glibc-headers-2.28-9.h55"];

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, "glibc");
}