EulerOS Virtualization 3.0.2.2 : binutils (EulerOS-SA-2023-1245)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(170797);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/16");

  script_cve_id(
    "CVE-2018-10534",
    "CVE-2018-10535",
    "CVE-2021-3487",
    "CVE-2021-3549",
    "CVE-2021-42574",
    "CVE-2021-45078"
  );

  script_name(english:"EulerOS Virtualization 3.0.2.2 : binutils (EulerOS-SA-2023-1245)");

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

  - The _bfd_XX_bfd_copy_private_bfd_data_common function in peXXigen.c in the Binary File Descriptor (BFD)
    library (aka libbfd), as distributed in GNU Binutils 2.30, processes a negative Data Directory size with
    an unbounded loop that increases the value of (external_IMAGE_DEBUG_DIRECTORY) *edd so that the address
    exceeds its own memory region, resulting in an out-of-bounds memory write, as demonstrated by objcopy
    copying private info with _bfd_pex64_bfd_copy_private_bfd_data_common in pex64igen.c. (CVE-2018-10534)

  - The ignore_section_sym function in elf.c in the Binary File Descriptor (BFD) library (aka libbfd), as
    distributed in GNU Binutils 2.30, does not validate the output_section pointer in the case of a symtab
    entry with a 'SECTION' type that has a '0' value, which allows remote attackers to cause a denial of
    service (NULL pointer dereference and application crash) via a crafted file, as demonstrated by objcopy.
    (CVE-2018-10535)

  - Rejected reason: Non Security Issue. See the binutils security policy for more details,
    https://sourceware.org/cgit/binutils-gdb/tree/binutils/SECURITY.txt (CVE-2021-3487)

  - An out of bounds flaw was found in GNU binutils objdump utility version 2.36. An attacker could use this
    flaw and pass a large section to avr_elf32_load_records_from_section() probably resulting in a crash or in
    some cases memory corruption. The highest threat from this vulnerability is to integrity as well as system
    availability. (CVE-2021-3549)

  - An issue was discovered in the Bidirectional Algorithm in the Unicode Specification through 14.0. It
    permits the visual reordering of characters via control sequences, which can be used to craft source code
    that renders different logic than the logical ordering of tokens ingested by compilers and interpreters.
    Adversaries can leverage this to encode source code for compilers accepting Unicode such that targeted
    vulnerabilities are introduced invisibly to human reviewers. NOTE: the Unicode Consortium offers the
    following alternative approach to presenting this concern. An issue is noted in the nature of
    international text that can affect applications that implement support for The Unicode Standard and the
    Unicode Bidirectional Algorithm (all versions). Due to text display behavior when text includes left-to-
    right and right-to-left characters, the visual order of tokens may be different from their logical order.
    Additionally, control characters needed to fully support the requirements of bidirectional text can
    further obfuscate the logical order of tokens. Unless mitigated, an adversary could craft source code such
    that the ordering of tokens perceived by human reviewers does not match what will be processed by a
    compiler/interpreter/etc. The Unicode Consortium has documented this class of vulnerability in its
    document, Unicode Technical Report #36, Unicode Security Considerations. The Unicode Consortium also
    provides guidance on mitigations for this class of issues in Unicode Technical Standard #39, Unicode
    Security Mechanisms, and in Unicode Standard Annex #31, Unicode Identifier and Pattern Syntax. Also, the
    BIDI specification allows applications to tailor the implementation in ways that can mitigate misleading
    visual reordering in program text; see HL4 in Unicode Standard Annex #9, Unicode Bidirectional Algorithm.
    (CVE-2021-42574)

  - stab_xcoff_builtin_type in stabs.c in GNU Binutils through 2.37 allows attackers to cause a denial of
    service (heap-based buffer overflow) or possibly have unspecified other impact, as demonstrated by an out-
    of-bounds write. NOTE: this issue exists because of an incorrect fix for CVE-2018-12699. (CVE-2021-45078)

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-2023-1245
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7ada655f");
  script_set_attribute(attribute:"solution", value:
"Update the affected binutils packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:H/PR:N/UI:R/S:C/C:H/I:H/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-2021-45078");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-42574");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/04/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/01/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/01/30");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:binutils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.2");
  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) 2023-2024 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("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var _release = get_kb_item("Host/EulerOS/release");
if (isnull(_release) || _release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.2.2") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.2.2");
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "x86" >!< cpu) audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

var flag = 0;

var pkgs = [
  "binutils-2.27-28.base.1.h53.eulerosv2r7"
];

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

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "binutils");
}