TencentOS Server 4: radare2 (TSSA-2025:0547)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Tencent Linux Security Advisory TSSA-2025:0547.
##

include('compat.inc');

if (description)
{
  script_id(275939);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/11");

  script_cve_id(
    "CVE-2025-5641",
    "CVE-2025-5642",
    "CVE-2025-5643",
    "CVE-2025-5644",
    "CVE-2025-5645",
    "CVE-2025-5646",
    "CVE-2025-5647",
    "CVE-2025-5648"
  );

  script_name(english:"TencentOS Server 4: radare2 (TSSA-2025:0547)");

  script_set_attribute(attribute:"synopsis", value:
"The remote TencentOS Server 4 host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is,
therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0547 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2025-5648:
    A vulnerability was found in Radare2 5.9.9. It has been classified as problematic. Affected is the
    function r_cons_pal_init in the library /libr/cons/pal.c of the component radiff2. The manipulation of the
    argument -T leads to memory corruption. An attack has to be approached locally. The complexity of an
    attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the
    public and may be used. The real existence of this vulnerability is still doubted at the moment. The name
    of the patch is 5705d99cc1f23f36f9a84aab26d1724010b97798. It is recommended to apply a patch to fix this
    issue. The documentation explains that the parameter -T is experimental and crashy. Further analysis has
    shown the race is not a real problem unless you use asan. A new warning has been added.

    CVE-2025-5647:
    A vulnerability was found in Radare2 5.9.9 and classified as problematic. This issue affects the function
    r_cons_context_break_pop in the library /libr/cons/cons.c of the component radiff2. The manipulation of
    the argument -T leads to memory corruption. The attack needs to be approached locally. The complexity of
    an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the
    public and may be used. The real existence of this vulnerability is still doubted at the moment. The patch
    is named 5705d99cc1f23f36f9a84aab26d1724010b97798. It is recommended to apply a patch to fix this issue.
    The documentation explains that the parameter -T is experimental and crashy. Further analysis has shown
    the race is not a real problem unless you use asan. A new warning has been added.

    CVE-2025-5646:
    A vulnerability has been found in Radare2 5.9.9 and classified as problematic. This vulnerability affects
    the function r_cons_rainbow_free in the library /libr/cons/pal.c of the component radiff2. The
    manipulation of the argument -T leads to memory corruption. It is possible to launch the attack on the
    local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The
    exploit has been disclosed to the public and may be used. The real existence of this vulnerability is
    still doubted at the moment. The patch is identified as 5705d99cc1f23f36f9a84aab26d1724010b97798. It is
    recommended to apply a patch to fix this issue. The documentation explains that the parameter -T is
    experimental and crashy. Further analysis has shown the race is not a real problem unless you use
    asan. A new warning has been added.

    CVE-2025-5645:
    A vulnerability, which was classified as problematic, was found in Radare2 5.9.9. This affects the
    function r_cons_pal_init in the library /libr/cons/pal.c of the component radiff2. The manipulation of the
    argument -T leads to memory corruption. Attacking locally is a requirement. The complexity of an attack is
    rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and
    may be used. The real existence of this vulnerability is still doubted at the moment. The identifier of
    the patch is 5705d99cc1f23f36f9a84aab26d1724010b97798. It is recommended to apply a patch to fix this
    issue. The documentation explains that the parameter -T is experimental and crashy. Further analysis has
    shown the race is not a real problem unless you use asan. A new warning has been added.

    CVE-2025-5644:
    A vulnerability, which was classified as problematic, has been found in Radare2 5.9.9. Affected by this
    issue is the function r_cons_flush in the library /libr/cons/cons.c of the component radiff2. The
    manipulation of the argument -T leads to use after free. Local access is required to approach this attack.
    The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has
    been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at
    the moment. The name of the patch is 5705d99cc1f23f36f9a84aab26d1724010b97798. It is recommended to apply
    a patch to fix this issue. The documentation explains that the parameter -T is experimental and crashy.
    Further analysis has shown the race is not a real problem unless you use asan. A new warning has been
    added.

    CVE-2025-5643:
    A vulnerability classified as problematic was found in Radare2 5.9.9. Affected by this vulnerability is
    the function cons_stack_load in the library /libr/cons/cons.c of the component radiff2. The manipulation
    of the argument -T leads to memory corruption. An attack has to be approached locally. The complexity of
    an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the
    public and may be used. The real existence of this vulnerability is still doubted at the moment. The patch
    is named 5705d99cc1f23f36f9a84aab26d1724010b97798. It is recommended to apply a patch to fix this issue.
    The documentation explains that the parameter -T is experimental and crashy. Further analysis has shown
    the race is not a real problem unless you use asan. A new warning has been added.

    CVE-2025-5642:
    A vulnerability classified as problematic has been found in Radare2 5.9.9. Affected is the function
    r_cons_pal_init in the library /libr/cons/pal.c of the component radiff2. The manipulation leads to memory
    corruption. The attack needs to be approached locally. The complexity of an attack is rather high. The
    exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. The
    real existence of this vulnerability is still doubted at the moment. The patch is identified as
    5705d99cc1f23f36f9a84aab26d1724010b97798. It is recommended to apply a patch to fix this issue. The
    documentation explains that the parameter -T is experimental and crashy. Further analysis has shown the
    race is not a real problem unless you use asan. A new warning has been added.

    CVE-2025-5641:
    A vulnerability was found in Radare2 5.9.9. It has been rated as problematic. This issue affects the
    function r_cons_is_breaked in the library /libr/cons/cons.c of the component radiff2. The manipulation of
    the argument -T leads to memory corruption. It is possible to launch the attack on the local host. The
    complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been
    disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the
    moment. The identifier of the patch is 5705d99cc1f23f36f9a84aab26d1724010b97798. It is recommended to
    apply a patch to fix this issue. The documentation explains that the parameter -T is experimental and
    crashy. Further analysis has shown the race is not a real problem unless you use asan. An additional
    warning regarding threading support has been added.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

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://mirrors.tencent.com/tlinux/errata/tssa-20250547.xml");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:S/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:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-5647");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2025-5648");

  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:"2025/06/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/07/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/11/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:tencent:tencentos_server:4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:radare2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/etc/os-release", "Host/TencentOS/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'TencentOS' >!< os_product) audit(AUDIT_OS_NOT, 'TencentOS');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'TencentOS');
if (! preg(pattern:"^4([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'TencentOS 4.x', 'TencentOS ' + os_version);

if (!get_kb_item('Host/TencentOS/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$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'TencentOS', cpu);

var constraints = [
  {
    'release': '4',
    'pkgs': [
      {'reference':'radare2-5.9.8-4.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'radare2-5.9.8-4.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'radare2-common-5.9.8-4.oc9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'radare2-debuginfo-5.9.8-4.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'radare2-debuginfo-5.9.8-4.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'radare2-debugsource-5.9.8-4.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'radare2-debugsource-5.9.8-4.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'radare2-devel-5.9.8-4.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'radare2-devel-5.9.8-4.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      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, 'radare2 / radare2-common / radare2-debuginfo / etc');
}