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This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.OPENSUSE-2022-10160-1.NASL
HistoryOct 21, 2022 - 12:00 a.m.

openSUSE 15 Security Update : v4l2loopback (openSUSE-SU-2022:10160-1)

2022-10-2100:00:00
This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
8

The remote SUSE Linux SUSE15 host has packages installed that are affected by a vulnerability as referenced in the openSUSE-SU-2022:10160-1 advisory.

  • Depending on the way the format strings in the card label are crafted it’s possible to leak kernel stack memory. There is also the possibility for DoS due to the v4l2loopback kernel module crashing when providing the card label on request (reproduce e.g. with many %s modifiers in a row). (CVE-2022-2652)

Note that Nessus has not tested for this issue 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
# openSUSE Security Update openSUSE-SU-2022:10160-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(166362);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/09");

  script_cve_id("CVE-2022-2652");

  script_name(english:"openSUSE 15 Security Update : v4l2loopback (openSUSE-SU-2022:10160-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SUSE15 host has packages installed that are affected by a vulnerability as referenced in the
openSUSE-SU-2022:10160-1 advisory.

  - Depending on the way the format strings in the card label are crafted it's possible to leak kernel stack
    memory. There is also the possibility for DoS due to the v4l2loopback kernel module crashing when
    providing the card label on request (reproduce e.g. with many %s modifiers in a row). (CVE-2022-2652)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202156");
  # https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/T7TOUD7WBZ7HIZPTAF5TWVMSY3TRYEZ7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1031f9d4");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-2652");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:M/C:C/I:N/A:C");
  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:H/UI:N/S:U/C:H/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-2022-2652");

  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:"2022/08/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/10/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/10/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:v4l2loopback-autoload");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:v4l2loopback-kmp-64kb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:v4l2loopback-kmp-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:v4l2loopback-kmp-preempt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:v4l2loopback-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.3");
  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, 'openSUSE');
var _os_ver = pregmatch(pattern: "^SUSE([\d.]+)", string:os_release);
if (isnull(_os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'openSUSE');
_os_ver = _os_ver[1];
if (os_release !~ "^(SUSE15\.3)$") audit(AUDIT_OS_RELEASE_NOT, 'openSUSE', '15.3', os_release);
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, 'openSUSE ' + _os_ver, cpu);

var pkgs = [
    {'reference':'v4l2loopback-autoload-0.12.5-lp153.2.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'v4l2loopback-kmp-64kb-0.12.5_k5.3.18_150300.59.93-lp153.2.5.1', 'cpu':'aarch64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'v4l2loopback-kmp-default-0.12.5_k5.3.18_150300.59.93-lp153.2.5.1', 'cpu':'aarch64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'v4l2loopback-kmp-default-0.12.5_k5.3.18_150300.59.93-lp153.2.5.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'v4l2loopback-kmp-preempt-0.12.5_k5.3.18_150300.59.93-lp153.2.5.1', 'cpu':'aarch64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'v4l2loopback-kmp-preempt-0.12.5_k5.3.18_150300.59.93-lp153.2.5.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'v4l2loopback-utils-0.12.5-lp153.2.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE}
];

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

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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, 'v4l2loopback-autoload / v4l2loopback-kmp-64kb / etc');
}
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