An update for kernel-rt is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es) :
kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c (CVE-2019-3846)
Kernel: KVM: nVMX: guest accesses L0 MSR causes potential DoS (CVE-2019-3887)
kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results (CVE-2019-9500)
kernel: Count overflow in FUSE request leading to use-after-free issues. (CVE-2019-11487)
kernel: brcmfmac frame validation bypass (CVE-2019-9503)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es) :
BUG: scheduling while atomic in zswap (BZ#1726362)
kernel-rt: update to the RHEL8.0.z batch#3 source tree (BZ#1734475)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2019:2741. The text
# itself is copyright (C) Red Hat, Inc.
#
include("compat.inc");
if (description)
{
script_id(128859);
script_version("1.5");
script_cvs_date("Date: 2019/12/27");
script_cve_id("CVE-2018-19824", "CVE-2019-11487", "CVE-2019-3846", "CVE-2019-3887", "CVE-2019-9500", "CVE-2019-9503");
script_xref(name:"RHSA", value:"2019:2741");
script_name(english:"RHEL 8 : kernel-rt (RHSA-2019:2741)");
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:
"An update for kernel-rt is now available for Red Hat Enterprise Linux
8.
Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.
The kernel-rt packages provide the Real Time Linux Kernel, which
enables fine-tuning for systems with extremely high determinism
requirements.
Security Fix(es) :
* kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in
marvell/mwifiex/scan.c (CVE-2019-3846)
* Kernel: KVM: nVMX: guest accesses L0 MSR causes potential DoS
(CVE-2019-3887)
* kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results
(CVE-2019-9500)
* kernel: Count overflow in FUSE request leading to use-after-free
issues. (CVE-2019-11487)
* kernel: brcmfmac frame validation bypass (CVE-2019-9503)
For more details about the security issue(s), including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE page(s) listed in the References section.
Bug Fix(es) :
* BUG: scheduling while atomic in zswap (BZ#1726362)
* kernel-rt: update to the RHEL8.0.z batch#3 source tree (BZ#1734475)"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2019:2741"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2018-19824"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2019-3846"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2019-3887"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2019-9500"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2019-9503"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2019-11487"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:A/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:A/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:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo-common-x86_64");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/12/03");
script_set_attribute(attribute:"patch_publication_date", value:"2019/09/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/09/16");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Red Hat Local Security Checks");
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:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 8.x", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
rm_kb_item(name:"Host/uptrack-uname-r");
cve_list = make_list("CVE-2018-19824", "CVE-2019-11487", "CVE-2019-3846", "CVE-2019-3887", "CVE-2019-9500", "CVE-2019-9503");
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for RHSA-2019:2741");
}
else
{
__rpm_report = ksplice_reporting_text();
}
}
yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo))
{
rhsa = "RHSA-2019:2741";
yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
if (!empty_or_null(yum_report))
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : yum_report
);
exit(0);
}
else
{
audit_message = "affected by Red Hat security advisory " + rhsa;
audit(AUDIT_OS_NOT, audit_message);
}
}
else
{
flag = 0;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-core-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-debug-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-debug-core-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-debug-debuginfo-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-debug-devel-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-debug-kvm-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-debug-kvm-debuginfo-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-debug-modules-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-debug-modules-extra-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-debuginfo-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-debuginfo-common-x86_64-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-devel-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-kvm-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-kvm-debuginfo-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-modules-4.18.0-80.11.1.rt9.156.el8_0")) flag++;
if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"kernel-rt-modules-extra-4.18.0-80.11.1.rt9.156.el8_0")) 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-rt / kernel-rt-core / kernel-rt-debug / kernel-rt-debug-core / etc");
}
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | kernel-rt | p-cpe:/a:redhat:enterprise_linux:kernel-rt |
redhat | enterprise_linux | kernel-rt-core | p-cpe:/a:redhat:enterprise_linux:kernel-rt-core |
redhat | enterprise_linux | kernel-rt-debug | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug |
redhat | enterprise_linux | kernel-rt-debug-core | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core |
redhat | enterprise_linux | kernel-rt-debug-debuginfo | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-debuginfo |
redhat | enterprise_linux | kernel-rt-debug-devel | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel |
redhat | enterprise_linux | kernel-rt-debug-kvm | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm |
redhat | enterprise_linux | kernel-rt-debug-kvm-debuginfo | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm-debuginfo |
redhat | enterprise_linux | kernel-rt-debug-modules | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules |
redhat | enterprise_linux | kernel-rt-debug-modules-extra | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19824
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11487
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3846
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3887
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9500
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9503
access.redhat.com/errata/RHSA-2019:2741
access.redhat.com/security/cve/cve-2018-19824
access.redhat.com/security/cve/cve-2019-11487
access.redhat.com/security/cve/cve-2019-3846
access.redhat.com/security/cve/cve-2019-3887
access.redhat.com/security/cve/cve-2019-9500
access.redhat.com/security/cve/cve-2019-9503