CentOS 9 : oniguruma-6.9.6-1.el9.5

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# the CentOS Stream Build Service.
##

include('compat.inc');

if (description)
{
  script_id(191425);

  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/29");

  script_cve_id(
    "CVE-2017-9224",
    "CVE-2017-9225",
    "CVE-2017-9227",
    "CVE-2017-9228",
    "CVE-2017-9229",
    "CVE-2019-13224",
    "CVE-2019-13225",
    "CVE-2019-16163",
    "CVE-2019-19012",
    "CVE-2019-19203",
    "CVE-2019-19204",
    "CVE-2019-19246",
    "CVE-2020-26159"
  );

  script_name(english:"CentOS 9 : oniguruma-6.9.6-1.el9.5");

  script_set_attribute(attribute:"synopsis", value:
"The remote CentOS host is missing one or more security updates for oniguruma.");
  script_set_attribute(attribute:"description", value:
"The remote CentOS Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the
oniguruma-6.9.6-1.el9.5 build changelog.

  - An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in
    PHP through 7.1.5. A stack out-of-bounds read occurs in match_at() during regular expression searching. A
    logical error involving order of validation and access in match_at() could result in an out-of-bounds read
    from a stack buffer. (CVE-2017-9224)

  - An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in
    PHP through 7.1.5. A stack out-of-bounds write in onigenc_unicode_get_case_fold_codes_by_str() occurs
    during regular expression compilation. Code point 0xFFFFFFFF is not properly handled in
    unicode_unfold_key(). A malformed regular expression could result in 4 bytes being written off the end of
    a stack buffer of expand_case_fold_string() during the call to
    onigenc_unicode_get_case_fold_codes_by_str(), a typical stack buffer overflow. (CVE-2017-9225)

  - An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in
    PHP through 7.1.5. A stack out-of-bounds read occurs in mbc_enc_len() during regular expression searching.
    Invalid handling of reg->dmin in forward_search_range() could result in an invalid pointer dereference, as
    an out-of-bounds read from a stack buffer. (CVE-2017-9227)

  - An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in
    PHP through 7.1.5. A heap out-of-bounds write occurs in bitset_set_range() during regular expression
    compilation due to an uninitialized variable from an incorrect state transition. An incorrect state
    transition in parse_char_class() could create an execution path that leaves a critical local variable
    uninitialized until it's used as an index, resulting in an out-of-bounds write memory corruption.
    (CVE-2017-9228)

  - An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in
    PHP through 7.1.5. A SIGSEGV occurs in left_adjust_char_head() during regular expression compilation.
    Invalid handling of reg->dmax in forward_search_range() could result in an invalid pointer dereference,
    normally as an immediate denial-of-service condition. (CVE-2017-9229)

  - A use-after-free in onig_new_deluxe() in regext.c in Oniguruma 6.9.2 allows attackers to potentially cause
    information disclosure, denial of service, or possibly code execution by providing a crafted regular
    expression. The attacker provides a pair of a regex pattern and a string, with a multi-byte encoding that
    gets handled by onig_new_deluxe(). Oniguruma issues often affect Ruby, as well as common optional
    libraries for PHP and Rust. (CVE-2019-13224)

  - A NULL Pointer Dereference in match_at() in regexec.c in Oniguruma 6.9.2 allows attackers to potentially
    cause denial of service by providing a crafted regular expression. Oniguruma issues often affect Ruby, as
    well as common optional libraries for PHP and Rust. (CVE-2019-13225)

  - Oniguruma before 6.9.3 allows Stack Exhaustion in regcomp.c because of recursion in regparse.c.
    (CVE-2019-16163)

  - An integer overflow in the search_in_range function in regexec.c in Oniguruma 6.x before 6.9.4_rc2 leads
    to an out-of-bounds read, in which the offset of this read is under the control of an attacker. (This only
    affects the 32-bit compiled version). Remote attackers can cause a denial-of-service or information
    disclosure, or possibly have unspecified other impact, via a crafted regular expression. (CVE-2019-19012)

  - An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function gb18030_mbc_enc_len in file
    gb18030.c, a UChar pointer is dereferenced without checking if it passed the end of the matched string.
    This leads to a heap-based buffer over-read. (CVE-2019-19203)

  - An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function fetch_interval_quantifier
    (formerly known as fetch_range_quantifier) in regparse.c, PFETCH is called without checking PEND. This
    leads to a heap-based buffer over-read. (CVE-2019-19204)

  - Oniguruma through 6.9.3, as used in PHP 7.3.x and other products, has a heap-based buffer over-read in
    str_lower_case_match in regexec.c. (CVE-2019-19246)

  - Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Further investigation showed that it
    was not a security issue. Notes: none (CVE-2020-26159)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://kojihub.stream.centos.org/koji/buildinfo?buildID=15746");
  script_set_attribute(attribute:"solution", value:
"Update the CentOS 9 Stream oniguruma package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:L/PR:N/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-2019-19012");

  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:"2017/05/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/12/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:centos:centos:9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:oniguruma");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CentOS Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 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/CentOS/release", "Host/CentOS/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/CentOS/release');
if (isnull(os_release) || 'CentOS' >!< os_release) audit(AUDIT_OS_NOT, 'CentOS');
var os_ver = pregmatch(pattern: "CentOS(?: Stream)?(?: Linux)? release ([0-9]+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'CentOS');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '9')) audit(AUDIT_OS_NOT, 'CentOS 9.x', 'CentOS ' + os_ver);

if (!get_kb_item('Host/CentOS/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('aarch64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'CentOS', cpu);

var pkgs = [
    {'reference':'oniguruma-6.9.6-1.el9.5', 'release':'9', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 'CentOS-' + package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (reference && _release) {
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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, 'oniguruma');
}