| code | #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:2104. The text
# itself is copyright (C) Red Hat, Inc.
#
include('compat.inc');
if (description)
{
script_id(136496);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/13");
script_cve_id(
"CVE-2017-18551",
"CVE-2017-18595",
"CVE-2019-9454",
"CVE-2019-12614",
"CVE-2019-15538",
"CVE-2019-19447",
"CVE-2019-19524",
"CVE-2019-19768",
"CVE-2020-9383",
"CVE-2020-10711"
);
script_bugtraq_id(108550);
script_xref(name:"RHSA", value:"2020:2104");
script_name(english:"RHEL 7 : kernel-alt (RHSA-2020:2104)");
script_summary(english:"Checks the rpm output for the updated packages");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2020:2104 advisory.
- kernel: out of bounds write in function
i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c
(CVE-2017-18551)
- kernel: double free may be caused by the function
allocate_trace_buffer in the file kernel/trace/trace.c
(CVE-2017-18595)
- kernel: null pointer dereference in
dlpar_parse_cc_property in
arch/powerrc/platforms/pseries/dlpar.c causing denial of
service (CVE-2019-12614)
- kernel: denial of service in in xfs_setattr_nonsize in
fs/xfs/xfs_iops.c (CVE-2019-15538)
- kernel: mounting a crafted ext4 filesystem image,
performing some operations, and unmounting can lead to a
use-after-free in ext4_put_super in fs/ext4/super.c
(CVE-2019-19447)
- kernel: a malicious USB device in the drivers/input/ff-
memless.c leads to use-after-free (CVE-2019-19524)
- kernel: use-after-free in __blk_add_trace in
kernel/trace/blktrace.c (CVE-2019-19768)
- kernel: out of bounds write in i2c driver leads to local
escalation of privilege (CVE-2019-9454)
- Kernel: NetLabel: null pointer dereference while
receiving CIPSO packet with null category may cause
kernel panic (CVE-2020-10711)
- kernel: out-of-bounds read in set_fdc in
drivers/block/floppy.c (CVE-2020-9383)
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://cwe.mitre.org/data/definitions/787.html");
script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/416.html");
script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/400.html");
script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/416.html");
script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/416.html");
script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/416.html");
script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/787.html");
script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/119.html");
script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/476.html");
script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/125.html");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:2104");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2017-18551");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2017-18595");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2019-12614");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2019-15538");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2019-19447");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2019-19524");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2019-19768");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2019-9454");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2020-10711");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2020-9383");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1718176");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1746777");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1757368");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1758671");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1781679");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1783459");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1786164");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1810685");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1818818");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1825116");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:L/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-2017-18595");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_cwe_id(119, 125, 400, 416, 476, 787);
script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/03");
script_set_attribute(attribute:"patch_publication_date", value:"2020/05/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/12");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7::server");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-abi-whitelists");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-bootwrapper");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-perf");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Red Hat Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');
include('ksplice.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item('Host/RedHat/release');
if (isnull(release) || 'Red Hat' >!< release) audit(AUDIT_OS_NOT, 'Red Hat');
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Red Hat 7.x', 'Red Hat ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
rm_kb_item(name:'Host/uptrack-uname-r');
cve_list = make_list('CVE-2017-18551', 'CVE-2017-18595', 'CVE-2019-9454', 'CVE-2019-12614', 'CVE-2019-15538', 'CVE-2019-19447', 'CVE-2019-19524', 'CVE-2019-19768', 'CVE-2020-9383', 'CVE-2020-10711');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for RHSA-2020:2104');
}
else
{
__rpm_report = ksplice_reporting_text();
}
}
pkgs = [
{'reference':'kernel-4.14.0-115.21.2.el7a', 'cpu':'aarch64', 'release':'7'},
{'reference':'kernel-4.14.0-115.21.2.el7a', 'cpu':'s390x', 'release':'7'},
{'reference':'kernel-abi-whitelists-4.14.0-115.21.2.el7a', 'release':'7'},
{'reference':'kernel-debug-4.14.0-115.21.2.el7a', 'cpu':'aarch64', 'release':'7'},
{'reference':'kernel-debug-4.14.0-115.21.2.el7a', 'cpu':'s390x', 'release':'7'},
{'reference':'kernel-debug-devel-4.14.0-115.21.2.el7a', 'cpu':'aarch64', 'release':'7'},
{'reference':'kernel-debug-devel-4.14.0-115.21.2.el7a', 'cpu':'s390x', 'release':'7'},
{'reference':'kernel-devel-4.14.0-115.21.2.el7a', 'cpu':'aarch64', 'release':'7'},
{'reference':'kernel-devel-4.14.0-115.21.2.el7a', 'cpu':'s390x', 'release':'7'},
{'reference':'kernel-headers-4.14.0-115.21.2.el7a', 'cpu':'aarch64', 'release':'7'},
{'reference':'kernel-headers-4.14.0-115.21.2.el7a', 'cpu':'s390x', 'release':'7'},
{'reference':'kernel-kdump-4.14.0-115.21.2.el7a', 'cpu':'s390x', 'release':'7'},
{'reference':'kernel-kdump-devel-4.14.0-115.21.2.el7a', 'cpu':'s390x', 'release':'7'},
{'reference':'kernel-tools-4.14.0-115.21.2.el7a', 'cpu':'aarch64', 'release':'7'},
{'reference':'kernel-tools-libs-4.14.0-115.21.2.el7a', 'cpu':'aarch64', 'release':'7'},
{'reference':'kernel-tools-libs-devel-4.14.0-115.21.2.el7a', 'cpu':'aarch64', 'release':'7'},
{'reference':'perf-4.14.0-115.21.2.el7a', 'cpu':'aarch64', 'release':'7'},
{'reference':'perf-4.14.0-115.21.2.el7a', 'cpu':'s390x', 'release':'7'},
{'reference':'python-perf-4.14.0-115.21.2.el7a', 'cpu':'aarch64', 'release':'7'},
{'reference':'python-perf-4.14.0-115.21.2.el7a', 'cpu':'s390x', 'release':'7'}
];
flag = 0;
foreach package_array ( pkgs ) {
reference = NULL;
release = NULL;
sp = NULL;
cpu = NULL;
el_string = NULL;
rpm_spec_vers_cmp = NULL;
epoch = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) release = 'RHEL' + 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['el_string'])) el_string = package_array['el_string'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
if (reference && release) {
if (rpm_spec_vers_cmp) {
if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:TRUE)) flag++;
}
else
{
if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch)) flag++;
}
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get() + redhat_report_package_caveat()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel / kernel-abi-whitelists / kernel-debug / etc');
}
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