CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
87.1%
The remote SUSE Linux SUSE15 host has packages installed that are affected by a vulnerability as referenced in the openSUSE-SU-2021:1640-1 advisory.
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 70300
##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# openSUSE Security Update openSUSE-SU-2021:1640-1. The text itself
# is copyright (C) SUSE.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(156436);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/21");
script_cve_id("CVE-2021-44847");
script_name(english:"openSUSE 15 Security Update : c-toxcore (openSUSE-SU-2021:1640-1)");
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-2021:1640-1 advisory.
- A stack-based buffer overflow in handle_request function in DHT.c in toxcore 0.1.9 through 0.1.11 and
0.2.0 through 0.2.12 (caused by an improper length calculation during the handling of received network
packets) allows remote attackers to crash the process or potentially execute arbitrary code via a network
packet. (CVE-2021-44847)
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/1193667");
# https://lists.opensuse.org/archives/list/[email protected]/thread/MUGBIA3IOPBRCHCVWXL5KMYQ6TB5Z5XI/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1848afc6");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-44847");
script_set_attribute(attribute:"solution", value:
"Update the affected c-toxcore, c-toxcore-daemon, c-toxcore-devel and / or libtoxcore2 packages.");
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-2021-44847");
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:"2021/12/13");
script_set_attribute(attribute:"patch_publication_date", value:"2021/12/30");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/12/31");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:c-toxcore");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:c-toxcore-daemon");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:c-toxcore-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libtoxcore2");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.2");
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) 2021-2023 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('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item('Host/SuSE/release');
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, 'openSUSE');
var os_ver = pregmatch(pattern: "^SUSE([\d.]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'openSUSE');
os_ver = os_ver[1];
if (release !~ "^(SUSE15\.2|SUSE15\.3)$") audit(AUDIT_OS_RELEASE_NOT, 'openSUSE', '15.2 / 15.3', release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'openSUSE ' + os_ver, cpu);
var pkgs = [
{'reference':'c-toxcore-0.2.13-bp153.2.3.1', 'release':'SUSE15.2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'c-toxcore-0.2.13-bp153.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
{'reference':'c-toxcore-daemon-0.2.13-bp153.2.3.1', 'release':'SUSE15.2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'c-toxcore-daemon-0.2.13-bp153.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
{'reference':'c-toxcore-devel-0.2.13-bp153.2.3.1', 'release':'SUSE15.2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'c-toxcore-devel-0.2.13-bp153.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libtoxcore2-0.2.13-bp153.2.3.1', 'release':'SUSE15.2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libtoxcore2-0.2.13-bp153.2.3.1', '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_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, 'c-toxcore / c-toxcore-daemon / c-toxcore-devel / libtoxcore2');
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
87.1%