SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libeconf (SUSE-SU-2023:3954-1)

2023-10-0400:00:00

www.tenable.com

suse linux

libeconf

buffer overflow

dos

arbitrary code execution

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

AI Score

7.6

Confidence

High

EPSS

0.001

Percentile

45.8%

JSON

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3954-1 advisory.

A Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’) vulnerability in openSUSE libeconf leads to DoS via malformed config files. This issue affects libeconf: before 0.5.2.
(CVE-2023-22652)
A stack overflow vulnerability exists in function econf_writeFile in file atlibeconf/lib/libeconf.c in libeconf 0.5.1 allows attackers to cause a Denial of service or execute arbitrary code. (CVE-2023-30078)
A stack overflow vulnerability exists in function read_file in atlibeconf/lib/getfilecontents.c in libeconf 0.5.1 allows attackers to cause a Denial of service or execute arbitrary code. (CVE-2023-30079)
A Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’) vulnerability in openSUSE libeconf allows for DoS via malformed configuration files This issue affects libeconf: before 0.5.2.
(CVE-2023-32181)

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2023:3954-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(182488);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/22");

  script_cve_id(
    "CVE-2023-22652",
    "CVE-2023-30078",
    "CVE-2023-30079",
    "CVE-2023-32181"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2023:3954-1");

  script_name(english:"SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libeconf (SUSE-SU-2023:3954-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are
affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3954-1 advisory.

  - A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in openSUSE
    libeconf leads to DoS via malformed config files. This issue affects libeconf: before 0.5.2.
    (CVE-2023-22652)

  - A stack overflow vulnerability exists in function econf_writeFile in file atlibeconf/lib/libeconf.c in
    libeconf 0.5.1 allows attackers to cause a Denial of service or execute arbitrary code. (CVE-2023-30078)

  - A stack overflow vulnerability exists in function read_file in atlibeconf/lib/getfilecontents.c in
    libeconf 0.5.1 allows attackers to cause a Denial of service or execute arbitrary code. (CVE-2023-30079)

  - A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in openSUSE
    libeconf allows for DoS via malformed configuration files This issue affects libeconf: before 0.5.2.
    (CVE-2023-32181)

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://bugzilla.suse.com/1211078");
  # https://lists.suse.com/pipermail/sle-security-updates/2023-October/016487.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?610cbffa");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-22652");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-30078");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-30079");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-32181");
  script_set_attribute(attribute:"solution", value:
"Update the affected libeconf-devel, libeconf-utils, libeconf0 and / or libeconf0-32bit packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/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:R/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-2023-30079");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-32181");

  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:"2023/06/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/10/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/10/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libeconf0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023 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/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES|SUSE)") audit(AUDIT_OS_NOT, "SUSE / openSUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+|SUSE([\d.]+))", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE / openSUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED15|SLED_SAP15|SLES15|SLES_SAP15|SUSE15\.4|SUSE15\.5)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15', 'SUSE / openSUSE (' + os_ver + ')');

if (!get_kb_item("Host/SuSE/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, 'SUSE / openSUSE (' + os_ver + ')', cpu);

var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLED15" && (! preg(pattern:"^(4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED15 SP4/5", os_ver + " SP" + service_pack);
if (os_ver == "SLED_SAP15" && (! preg(pattern:"^(4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED_SAP15 SP4/5", os_ver + " SP" + service_pack);
if (os_ver == "SLES15" && (! preg(pattern:"^(4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP4/5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP15" && (! preg(pattern:"^(4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP15 SP4/5", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'libeconf0-0.5.2-150400.3.6.1', 'sp':'4', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'libeconf0-0.5.2-150400.3.6.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'libeconf0-0.5.2-150400.3.6.1', 'sp':'5', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'libeconf0-0.5.2-150400.3.6.1', 'sp':'5', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'libeconf0-0.5.2-150400.3.6.1', 'sp':'4', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'SUSE-Manager-Proxy-release-4.3', 'SUSE-Manager-Server-release-4.3', 'sle-module-basesystem-release-15.4', 'sled-release-15.4', 'sles-release-15.4', 'suse-manager-server-release-4.3']},
    {'reference':'libeconf0-0.5.2-150400.3.6.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'SUSE-Manager-Proxy-release-4.3', 'SUSE-Manager-Server-release-4.3', 'sle-module-basesystem-release-15.4', 'sled-release-15.4', 'sles-release-15.4', 'suse-manager-server-release-4.3']},
    {'reference':'libeconf0-0.5.2-150400.3.6.1', 'sp':'5', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-basesystem-release-15.5', 'sled-release-15.5', 'sles-release-15.5']},
    {'reference':'libeconf0-0.5.2-150400.3.6.1', 'sp':'5', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-basesystem-release-15.5', 'sled-release-15.5', 'sles-release-15.5']},
    {'reference':'libeconf-devel-0.5.2-150400.3.6.1', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.4']},
    {'reference':'libeconf-utils-0.5.2-150400.3.6.1', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.4']},
    {'reference':'libeconf0-0.5.2-150400.3.6.1', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.4']},
    {'reference':'libeconf0-32bit-0.5.2-150400.3.6.1', 'cpu':'x86_64', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.4']},
    {'reference':'libeconf-devel-0.5.2-150400.3.6.1', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'libeconf-utils-0.5.2-150400.3.6.1', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'libeconf0-0.5.2-150400.3.6.1', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'libeconf0-32bit-0.5.2-150400.3.6.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']}
];

var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var exists_check = NULL;
  var rpm_spec_vers_cmp = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 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['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && _release) {
    if (exists_check) {
      var check_flag = 0;
      foreach var check (exists_check) {
        if (!rpm_exists(release:_release, rpm:check)) continue;
        check_flag++;
      }
      if (!check_flag) continue;
    }
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) 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, 'libeconf-devel / libeconf-utils / libeconf0 / libeconf0-32bit');
}