The remote host is affected by the vulnerability described in GLSA-202011-01 (BlueZ: Arbitrary code execution)
It was discovered that there was a double-free vulnerability in Bluez after the service discovery which occurs after a Bluetoth Low Energy (BLE) connection has been established to a device.
Impact :
A remote attacker, by enticing a user to connect to a malicious GATT server or device, could cause the execution of arbitrary code with the privileges of the user running gatttool client or cause a Denial of Service condition.
Workaround :
There is no known workaround at this time.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 202011-01.
#
# The advisory text is Copyright (C) 2001-2020 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#
include('compat.inc');
if (description)
{
script_id(142325);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/12");
script_cve_id("CVE-2020-27153");
script_xref(name:"GLSA", value:"202011-01");
script_name(english:"GLSA-202011-01 : BlueZ: Arbitrary code execution");
script_set_attribute(attribute:"synopsis", value:
"The remote Gentoo host is missing one or more security-related
patches.");
script_set_attribute(attribute:"description", value:
"The remote host is affected by the vulnerability described in GLSA-202011-01
(BlueZ: Arbitrary code execution)
It was discovered that there was a double-free vulnerability in Bluez
after the service discovery which occurs after a Bluetoth Low Energy
(BLE) connection has been established to a device.
Impact :
A remote attacker, by enticing a user to connect to a malicious GATT
server or device, could cause the execution of arbitrary code with the
privileges of the user running gatttool client or cause a Denial of
Service condition.
Workaround :
There is no known workaround at this time.");
script_set_attribute(attribute:"see_also", value:"https://security.gentoo.org/glsa/202011-01");
script_set_attribute(attribute:"solution", value:
"All BlueZ users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-wireless/bluez-5.55'");
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:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-27153");
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:"2020/10/15");
script_set_attribute(attribute:"patch_publication_date", value:"2020/11/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/03");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:bluez");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Gentoo Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (qpkg_check(package:"net-wireless/bluez", unaffected:make_list("ge 5.55"), vulnerable:make_list("lt 5.55"))) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = qpkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "BlueZ");
}