Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4001)

2018-01-04T00:00:00
ID ORACLELINUX_ELSA-2018-4001.NASL
Type nessus
Reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-03-02T00:00:00

Description

Description of changes:

[4.1.12-112.14.2.el7uek] - fuse: Call end_queued_requests() after releasing fc->lock in fuse_dev_release() (Ashish Samant) [Orabug: 26431550] - rds: Fix inaccurate accounting of unsignaled wrs in rds_ib_xmit_rdma (H&aring kon Bugge) [Orabug: 27097105] - rds: Fix inaccurate accounting of unsignaled wrs (H&aring kon Bugge) [Orabug: 27097105] - rds: ib: Fix NULL pointer dereference in debug code (H&aring kon Bugge) [Orabug: 27116566] - bnx2x: fix slowpath null crash (Zhu Yanjun) [Orabug: 27133587] - rds: System panic if RDS netfilter is enabled and RDS/TCP is used (Ka-Cheong Poon) [Orabug: 27150029] - USB: serial: console: fix use-after-free after failed setup (Johan Hovold) [Orabug: 27206830] {CVE-2017-16525} - mlx4: Subscribe to PXM notifier (Konrad Rzeszutek Wilk) - xen/pci: Add PXM node notifier for PXM (NUMA) changes. (Konrad Rzeszutek Wilk) - xen/pcifront: Walk the PCI bus after XenStore notification (Konrad Rzeszutek Wilk) - uwb: properly check kthread_run return value (Andrey Konovalov) [Orabug: 27206880] {CVE-2017-16526} - ALSA: usb-audio: Check out-of-bounds access by corrupted buffer descriptor (Takashi Iwai) [Orabug: 27206923] {CVE-2017-16529} - USB: uas: fix bug in handling of alternate settings (Alan Stern) [Orabug: 27206999] {CVE-2017-16530} - USB: fix out-of-bounds in usb_set_configuration (Greg Kroah-Hartman) [Orabug: 27207224] {CVE-2017-16531} - HID: usbhid: fix out-of-bounds bug (Jaejoong Kim) [Orabug: 27207918] {CVE-2017-16533} - USB: core: fix out-of-bounds access bug in usb_get_bos_descriptor() (Alan Stern) [Orabug: 27207970] {CVE-2017-16535} - [media] cx231xx-cards: fix NULL-deref on missing association descriptor (Johan Hovold) [Orabug: 27208047] {CVE-2017-16536} - Replace max_t() with sub_positive() in dequeue_entity_load_avg() (Gayatri Vasudevan) [Orabug: 27222316] - sched/fair: Fix cfs_rq avg tracking underflow (Gayatri Vasudevan) [Orabug: 27222316] - KVM: nVMX: Fix vmx_check_nested_events() return value in case an event was reinjected to L2 (Liran Alon) [Orabug: 27250111] - KVM: VMX: use kvm_event_needs_reinjection (Wanpeng Li) [Orabug: 27250111] - KVM: nVMX: Fix pending events injection (Wanpeng Li) [Orabug: 27250111]

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2018-4001.
#

include("compat.inc");

if (description)
{
  script_id(105520);
  script_version("3.8");
  script_cvs_date("Date: 2019/09/27 13:00:39");

  script_cve_id("CVE-2017-16525", "CVE-2017-16526", "CVE-2017-16529", "CVE-2017-16530", "CVE-2017-16531", "CVE-2017-16533", "CVE-2017-16535", "CVE-2017-16536");

  script_name(english:"Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4001)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Description of changes:

[4.1.12-112.14.2.el7uek]
- fuse: Call end_queued_requests() after releasing fc->lock in 
fuse_dev_release() (Ashish Samant)  [Orabug: 26431550]
- rds: Fix inaccurate accounting of unsignaled wrs in rds_ib_xmit_rdma 
(H&aring kon Bugge)  [Orabug: 27097105]
- rds: Fix inaccurate accounting of unsignaled wrs (H&aring kon Bugge) 
[Orabug: 27097105]
- rds: ib: Fix NULL pointer dereference in debug code (H&aring kon Bugge) 
[Orabug: 27116566]
- bnx2x: fix slowpath null crash (Zhu Yanjun)  [Orabug: 27133587]
- rds: System panic if RDS netfilter is enabled and RDS/TCP is used 
(Ka-Cheong Poon)  [Orabug: 27150029]
- USB: serial: console: fix use-after-free after failed setup (Johan 
Hovold)  [Orabug: 27206830]  {CVE-2017-16525}
- mlx4: Subscribe to PXM notifier (Konrad Rzeszutek Wilk)
- xen/pci: Add PXM node notifier for PXM (NUMA) changes. (Konrad 
Rzeszutek Wilk)
- xen/pcifront: Walk the PCI bus after XenStore notification (Konrad 
Rzeszutek Wilk)
- uwb: properly check kthread_run return value (Andrey Konovalov) 
[Orabug: 27206880]  {CVE-2017-16526}
- ALSA: usb-audio: Check out-of-bounds access by corrupted buffer 
descriptor (Takashi Iwai)  [Orabug: 27206923]  {CVE-2017-16529}
- USB: uas: fix bug in handling of alternate settings (Alan Stern) 
[Orabug: 27206999]  {CVE-2017-16530}
- USB: fix out-of-bounds in usb_set_configuration (Greg Kroah-Hartman) 
[Orabug: 27207224]  {CVE-2017-16531}
- HID: usbhid: fix out-of-bounds bug (Jaejoong Kim)  [Orabug: 27207918] 
{CVE-2017-16533}
- USB: core: fix out-of-bounds access bug in usb_get_bos_descriptor() 
(Alan Stern)  [Orabug: 27207970]  {CVE-2017-16535}
- [media] cx231xx-cards: fix NULL-deref on missing association 
descriptor (Johan Hovold)  [Orabug: 27208047]  {CVE-2017-16536}
- Replace max_t() with sub_positive() in dequeue_entity_load_avg() 
(Gayatri Vasudevan)  [Orabug: 27222316]
- sched/fair: Fix cfs_rq avg tracking underflow (Gayatri Vasudevan) 
[Orabug: 27222316]
- KVM: nVMX: Fix vmx_check_nested_events() return value in case an event 
was reinjected to L2 (Liran Alon)  [Orabug: 27250111]
- KVM: VMX: use kvm_event_needs_reinjection (Wanpeng Li)  [Orabug: 
27250111]
- KVM: nVMX: Fix pending events injection (Wanpeng Li)  [Orabug: 27250111]"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2018-January/007429.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2018-January/007430.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected unbreakable enterprise kernel 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:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/04");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
include("ksplice.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^(6|7)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 6 / 7", "Oracle Linux " + 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", 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-2017-16525", "CVE-2017-16526", "CVE-2017-16529", "CVE-2017-16530", "CVE-2017-16531", "CVE-2017-16533", "CVE-2017-16535", "CVE-2017-16536");  
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2018-4001");
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

kernel_major_minor = get_kb_item("Host/uname/major_minor");
if (empty_or_null(kernel_major_minor)) exit(1, "Unable to determine kernel major-minor level.");
expected_kernel_major_minor = "4.1";
if (kernel_major_minor != expected_kernel_major_minor)
  audit(AUDIT_OS_NOT, "running kernel level " + expected_kernel_major_minor + ", it is running kernel level " + kernel_major_minor);

flag = 0;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-4.1.12-112.14.2.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-debug-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-debug-4.1.12-112.14.2.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-debug-devel-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-debug-devel-4.1.12-112.14.2.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-devel-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-devel-4.1.12-112.14.2.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-doc-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-doc-4.1.12-112.14.2.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-firmware-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-firmware-4.1.12-112.14.2.el6uek")) flag++;

if (rpm_exists(release:"EL7", rpm:"kernel-uek-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-4.1.12-112.14.2.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-debug-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-debug-4.1.12-112.14.2.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-debug-devel-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-debug-devel-4.1.12-112.14.2.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-devel-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-devel-4.1.12-112.14.2.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-doc-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-doc-4.1.12-112.14.2.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-firmware-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-firmware-4.1.12-112.14.2.el7uek")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "affected kernel");
}