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nessusThis script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.SUSE_SU-2022-4397-1.NASL
HistoryDec 10, 2022 - 12:00 a.m.

SUSE SLED15 / SLES15 Security Update : go1.19 (SUSE-SU-2022:4397-1)

2022-12-1000:00:00
This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
11
suse sled15
sles15
security update
cve-2022-41717
cve-2022-41720
http/2
excessive memory growth
windows
os.dirfs
http.dir

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

69.0%

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:4397-1 advisory.

  • An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server connections contain a cache of HTTP header keys sent by the client. While the total number of entries in this cache is capped, an attacker sending very large keys can cause the server to allocate approximately 64 MiB per open connection. (CVE-2022-41717)

  • On Windows, restricted files can be accessed via os.DirFS and http.Dir. The os.DirFS function and http.Dir type provide access to a tree of files rooted at a given directory. These functions permit access to Windows device files under that root. For example, os.DirFS(C:/tmp).Open(COM1) opens the COM1 device.
    Both os.DirFS and http.Dir only provide read-only filesystem access. In addition, on Windows, an os.DirFS for the directory (the root of the current drive) can permit a maliciously crafted path to escape from the drive and access any path on the system. With fix applied, the behavior of os.DirFS() has changed.
    Previously, an empty root was treated equivalently to /, so os.DirFS().Open(tmp) would open the path /tmp. This now returns an error. (CVE-2022-41720)

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-2022:4397-1. The text itself
# is copyright (C) SUSE.
##

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

if (description)
{
  script_id(168609);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/14");

  script_cve_id("CVE-2022-41717", "CVE-2022-41720");
  script_xref(name:"SuSE", value:"SUSE-SU-2022:4397-1");
  script_xref(name:"IAVB", value:"2022-B-0059-S");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : go1.19 (SUSE-SU-2022:4397-1)");

  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 host has packages installed that are affected by
multiple vulnerabilities as referenced in the SUSE-SU-2022:4397-1 advisory.

  - An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server
    connections contain a cache of HTTP header keys sent by the client. While the total number of entries in
    this cache is capped, an attacker sending very large keys can cause the server to allocate approximately
    64 MiB per open connection. (CVE-2022-41717)

  - On Windows, restricted files can be accessed via os.DirFS and http.Dir. The os.DirFS function and http.Dir
    type provide access to a tree of files rooted at a given directory. These functions permit access to
    Windows device files under that root. For example, os.DirFS(C:/tmp).Open(COM1) opens the COM1 device.
    Both os.DirFS and http.Dir only provide read-only filesystem access. In addition, on Windows, an os.DirFS
    for the directory (the root of the current drive) can permit a maliciously crafted path to escape from the
    drive and access any path on the system. With fix applied, the behavior of os.DirFS() has changed.
    Previously, an empty root was treated equivalently to /, so os.DirFS().Open(tmp) would open the path
    /tmp. This now returns an error. (CVE-2022-41720)

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/1200441");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1206134");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1206135");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-41717");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-41720");
  # https://lists.suse.com/pipermail/sle-security-updates/2022-December/013213.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?99d49d94");
  script_set_attribute(attribute:"solution", value:
"Update the affected go1.19, go1.19-doc and / or go1.19-race packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-41720");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/12/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/12/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/12/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:go1.19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:go1.19-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:go1.19-race");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 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)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED15|SLED_SAP15|SLES15|SLES_SAP15)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15', 'SUSE (' + 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 (' + 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:"^(3|4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED15 SP3/4", os_ver + " SP" + service_pack);
if (os_ver == "SLED_SAP15" && (! preg(pattern:"^(3|4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED_SAP15 SP3/4", os_ver + " SP" + service_pack);
if (os_ver == "SLES15" && (! preg(pattern:"^(3|4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP3/4", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP15" && (! preg(pattern:"^(3|4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP15 SP3/4", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'go1.19-1.19.4-150000.1.18.1', 'sp':'3', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'go1.19-1.19.4-150000.1.18.1', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'go1.19-doc-1.19.4-150000.1.18.1', 'sp':'3', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'go1.19-doc-1.19.4-150000.1.18.1', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'3', 'cpu':'aarch64', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'3', 'cpu':'x86_64', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'3', 'cpu':'aarch64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'3', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'go1.19-1.19.4-150000.1.18.1', 'sp':'4', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'go1.19-1.19.4-150000.1.18.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'go1.19-doc-1.19.4-150000.1.18.1', 'sp':'4', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'go1.19-doc-1.19.4-150000.1.18.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'go1.19-1.19.4-150000.1.18.1', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-development-tools-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'go1.19-1.19.4-150000.1.18.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-development-tools-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'go1.19-doc-1.19.4-150000.1.18.1', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-development-tools-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'go1.19-doc-1.19.4-150000.1.18.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-development-tools-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'3', 'cpu':'aarch64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-development-tools-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'3', 'cpu':'x86_64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-development-tools-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-development-tools-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-development-tools-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'go1.19-1.19.4-150000.1.18.1', 'sp':'4', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-development-tools-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
    {'reference':'go1.19-1.19.4-150000.1.18.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-development-tools-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
    {'reference':'go1.19-doc-1.19.4-150000.1.18.1', 'sp':'4', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-development-tools-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
    {'reference':'go1.19-doc-1.19.4-150000.1.18.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-development-tools-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-development-tools-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-development-tools-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-development-tools-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
    {'reference':'go1.19-race-1.19.4-150000.1.18.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-development-tools-release-15.4', 'sled-release-15.4', 'sles-release-15.4']}
];

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, 'go1.19 / go1.19-doc / go1.19-race');
}
VendorProductVersionCPE
novellsuse_linuxgo1.19p-cpe:/a:novell:suse_linux:go1.19
novellsuse_linuxgo1.19-docp-cpe:/a:novell:suse_linux:go1.19-doc
novellsuse_linuxgo1.19-racep-cpe:/a:novell:suse_linux:go1.19-race
novellsuse_linux15cpe:/o:novell:suse_linux:15

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

69.0%