EulerOS 2.0 SP2 : nasm (EulerOS-SA-2021-1332)

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

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

if (description)
{
  script_id(146733);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/19");

  script_cve_id(
    "CVE-2017-10686",
    "CVE-2017-11111",
    "CVE-2017-17810",
    "CVE-2017-17812",
    "CVE-2017-17815",
    "CVE-2017-17819",
    "CVE-2018-8881",
    "CVE-2018-8882",
    "CVE-2018-10016",
    "CVE-2018-10316",
    "CVE-2018-19214",
    "CVE-2018-19215",
    "CVE-2018-19755",
    "CVE-2018-1000667"
  );

  script_name(english:"EulerOS 2.0 SP2 : nasm (EulerOS-SA-2021-1332)");

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

  - In Netwide Assembler (NASM) 2.14rc0, there are multiple
    heap use after free vulnerabilities in the tool nasm.
    The related heap is allocated in the token() function
    and freed in the detoken() function (called by
    pp_getline()) - it is used again at multiple positions
    later that could cause multiple damages. For example,
    it causes a corrupted double-linked list in detoken(),
    a double free or corruption in delete_Token(), and an
    out-of-bounds write in detoken(). It has a high
    possibility to lead to a remote code execution
    attack.(CVE-2017-10686)

  - In Netwide Assembler (NASM) 2.14rc0, preproc.c allows
    remote attackers to cause a denial of service
    (heap-based buffer overflow and application crash) or
    possibly have unspecified other impact via a crafted
    file.(CVE-2017-11111)

  - In Netwide Assembler (NASM) 2.14rc0, there is a 'SEGV
    on unknown address' that will cause a remote denial of
    service attack, because asm/preproc.c mishandles macro
    calls that have the wrong number of
    arguments.(CVE-2017-17810)

  - In Netwide Assembler (NASM) 2.14rc0, there is a
    heap-based buffer over-read in the function detoken()
    in asm/preproc.c that will cause a remote denial of
    service attack.(CVE-2017-17812)

  - In Netwide Assembler (NASM) 2.14rc0, there is an
    illegal address access in is_mmacro() in asm/preproc.c
    that will cause a remote denial of service attack,
    because of a missing check for the relationship between
    minimum and maximum parameter counts.(CVE-2017-17815)

  - In Netwide Assembler (NASM) 2.14rc0, there is an
    illegal address access in the function find_cc() in
    asm/preproc.c that will cause a remote denial of
    service attack, because pointers associated with
    skip_white_ calls are not validated.(CVE-2017-17819)

  - Netwide Assembler (NASM) 2.13.02rc2 has a heap-based
    buffer over-read in the function tokenize in
    asm/preproc.c, related to an unterminated
    string.(CVE-2018-8881)

  - Netwide Assembler (NASM) 2.13.02rc2 has a stack-based
    buffer under-read in the function ieee_shr in
    asm/float.c via a large shift value.(CVE-2018-8882)

  - Netwide Assembler (NASM) 2.14rc0 has a division-by-zero
    vulnerability in the expr5 function in asm/eval.c via a
    malformed input file.(CVE-2018-10016)

  - Netwide Assembler (NASM) 2.14rc0 has an endless while
    loop in the assemble_file function of asm/nasm.c
    because of a globallineno integer
    overflow.(CVE-2018-10316)

  - Netwide Assembler (NASM) 2.14rc15 has a heap-based
    buffer over-read in expand_mmac_params in asm/preproc.c
    for insufficient input.(CVE-2018-19214)

  - Netwide Assembler (NASM) 2.14rc16 has a heap-based
    buffer over-read in expand_mmac_params in asm/preproc.c
    for the special cases of the % and $ and !
    characters.(CVE-2018-19215)

  - There is an illegal address access at asm/preproc.c
    (function: is_mmacro) in Netwide Assembler (NASM)
    2.14rc16 that will cause a denial of service
    (out-of-bounds array access) because a certain
    conversion can result in a negative
    integer.(CVE-2018-19755)

  - NASM nasm-2.13.03 nasm- 2.14rc15 version 2.14rc15 and
    earlier contains a memory corruption (crashed) of nasm
    when handling a crafted file due to function
    assemble_file(inname, depend_ptr) at asm/nasm.c:482.
    vulnerability in function assemble_file(inname,
    depend_ptr) at asm/nasm.c:482. that can result in
    aborting/crash nasm program. This attack appear to be
    exploitable via a specially crafted asm
    file..(CVE-2018-1000667)

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-2021-1332
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?14dd9449");
  script_set_attribute(attribute:"solution", value:
"Update the affected nasm 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:L/AC:L/PR:L/UI:N/S:U/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-2018-8881");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2018-8882");

  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:"2021/02/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/02/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nasm");
  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) 2021-2024 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 = ["nasm-2.10.07-7.h3"];

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, "nasm");
}