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
73.8%
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-2024:0114-1 advisory.
A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device’s particular number of buttons, leading to a heap overflow if a bigger value was used. (CVE-2023-6816)
The X.Org project reports: Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255 but the X.Org Server was only allocating space for the device’s number of buttons, leading to a heap overflow if a bigger value was used. If a device has both a button class and a key class and numButtons is zero, we can get an out-of-bounds write due to event under- allocation in the DeliverStateNotifyEvent function. The XISendDeviceHierarchyEvent() function allocates space to store up to MAXDEVICES (256) xXIHierarchyInfo structures in info.
If a device with a given ID was removed and a new device with the same ID added both in the same operation, the single device ID will lead to two info structures being written to info. Since this case can occur for every device ID at once, a total of two times MAXDEVICES info structures might be written to the allocation, leading to a heap buffer overflow. The DisableDevice() function is called whenever an enabled device is disabled and it moves the device from the inputInfo.devices linked list to the inputInfo.off_devices linked list. However, its link/unlink operation has an issue during the recursive call to DisableDevice() due to the prev pointer pointing to a removed device. This issue leads to a length mismatch between the total number of devices and the number of device in the list, leading to a heap overflow and, possibly, to local privilege escalation.
(CVE-2024-0229, CVE-2024-21885, CVE-2024-21886)
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-2024:0114-1. The text itself
# is copyright (C) SUSE.
##
include('compat.inc');
if (description)
{
script_id(189147);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/29");
script_cve_id(
"CVE-2023-6816",
"CVE-2024-0229",
"CVE-2024-21885",
"CVE-2024-21886"
);
script_xref(name:"SuSE", value:"SUSE-SU-2024:0114-1");
script_name(english:"SUSE SLED15 / SLES15 / openSUSE 15 Security Update : xwayland (SUSE-SU-2024:0114-1)");
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-2024:0114-1 advisory.
- A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for
each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the
X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap
overflow if a bigger value was used. (CVE-2023-6816)
- The X.Org project reports: Both DeviceFocusEvent and the XIQueryPointer reply contain a bit
for each logical button currently down. Buttons can be arbitrarily mapped to any value up to
255 but the X.Org Server was only allocating space for the device's number of buttons,
leading to a heap overflow if a bigger value was used. If a device has both a button class and a key class
and numButtons is zero, we can get an out-of-bounds write due to event under-
allocation in the DeliverStateNotifyEvent function. The XISendDeviceHierarchyEvent() function
allocates space to store up to MAXDEVICES (256) xXIHierarchyInfo structures in info.
If a device with a given ID was removed and a new device with the same ID added both in the
same operation, the single device ID will lead to two info structures being
written to info. Since this case can occur for every device ID at once, a total of
two times MAXDEVICES info structures might be written to the allocation, leading to a heap
buffer overflow. The DisableDevice() function is called whenever an enabled device is disabled
and it moves the device from the inputInfo.devices linked list to the inputInfo.off_devices
linked list. However, its link/unlink operation has an issue during the recursive
call to DisableDevice() due to the prev pointer pointing to a removed device. This
issue leads to a length mismatch between the total number of devices and the number of device
in the list, leading to a heap overflow and, possibly, to local privilege escalation.
(CVE-2024-0229, CVE-2024-21885, CVE-2024-21886)
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/1218582");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1218583");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1218584");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1218585");
# https://lists.suse.com/pipermail/sle-security-updates/2024-January/017670.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?01803927");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-6816");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2024-0229");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2024-21885");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2024-21886");
script_set_attribute(attribute:"solution", value:
"Update the affected xwayland and / or xwayland-devel 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: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:H/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-2023-6816");
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:"2024/01/16");
script_set_attribute(attribute:"patch_publication_date", value:"2024/01/16");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/01/18");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xwayland");
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) 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/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\.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:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED15 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLED_SAP15" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED_SAP15 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES15" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP15" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP15 SP5", os_ver + " SP" + service_pack);
var pkgs = [
{'reference':'xwayland-22.1.5-150500.7.14.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
{'reference':'xwayland-22.1.5-150500.7.14.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
{'reference':'xwayland-22.1.5-150500.7.14.1', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
{'reference':'xwayland-devel-22.1.5-150500.7.14.1', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
{'reference':'xwayland-22.1.5-150500.7.14.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-we-release-15.5', 'sled-release-15.5', 'sles-release-15.5']},
{'reference':'xwayland-22.1.5-150500.7.14.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-we-release-15.5', 'sled-release-15.5', 'sles-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, 'xwayland / xwayland-devel');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6816
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-0229
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21885
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21886
www.nessus.org/u?01803927
bugzilla.suse.com/1218582
bugzilla.suse.com/1218583
bugzilla.suse.com/1218584
bugzilla.suse.com/1218585
www.suse.com/security/cve/CVE-2023-6816
www.suse.com/security/cve/CVE-2024-0229
www.suse.com/security/cve/CVE-2024-21885
www.suse.com/security/cve/CVE-2024-21886
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
73.8%