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nessusThis script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.SUSE_SU-2020-0558-1.NASL
HistoryMar 06, 2020 - 12:00 a.m.

SUSE SLES12 Security Update : kernel (SUSE-SU-2020:0558-1)

2020-03-0600:00:00
This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
32

CVSS2

10

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS3

9.8

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

7.5

Confidence

High

EPSS

0.017

Percentile

87.7%

The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).

CVE-2020-8992: An issue was discovered in ext4_protect_reserved_inode in fs/ext4/block_validity.c that allowed attackers to cause a soft lockup via a crafted journal size (bnc#1164069).

CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).

CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service or possibly obtain sensitive information from kernel memory (bnc#1162109).

CVE-2020-7053: There was a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c (bnc#1160966).

CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures (bnc#1161522).

CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service (bnc#1161523).

CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures (bnc#1161518).

CVE-2019-14896: A heap overflow was found in the add_ie_rates() function of the Marvell Wifi Driver (bsc#1157157).

CVE-2019-14897: A stack overflow was found in the lbs_ibss_join_existing() function of the Marvell Wifi Driver (bsc#1157155).

CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).

CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).

CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel® Processors (bnc#1160195).

CVE-2019-19965: There was a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition (bnc#1159911).

CVE-2019-19927: Fixed an out-of-bounds read access when mounting a crafted f2fs filesystem image and performing some operations, related to ttm_put_pages in drivers/gpu/drm/ttm/ttm_page_alloc.c (bnc#1160147).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:0558-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

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    "CVE-2019-19054",
    "CVE-2019-19318",
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    "CVE-2019-19965",
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  script_set_attribute(attribute:"description", value:
"The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive
various security and bugfixes.

The following security bugs were fixed :

CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest
may trick the L0 hypervisor into accessing sensitive L1 resources
(bsc#1163971).

CVE-2020-8992: An issue was discovered in ext4_protect_reserved_inode
in fs/ext4/block_validity.c that allowed attackers to cause a soft
lockup via a crafted journal size (bnc#1164069).

CVE-2020-8648: There was a use-after-free vulnerability in the
n_tty_receive_buf_common function in drivers/tty/n_tty.c
(bnc#1162928).

CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which
allowed local users to cause a denial of service or possibly obtain
sensitive information from kernel memory (bnc#1162109).

CVE-2020-7053: There was a use-after-free (write) in the
i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c
(bnc#1160966).

CVE-2019-19045: A memory leak in
drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers
to cause a denial of service (memory consumption) by triggering
mlx5_vector2eqn() failures (bnc#1161522).

CVE-2019-16994: A memory leak existed in sit_init_net() in
net/ipv6/sit.c which might have caused denial of service
(bnc#1161523).

CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in
drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a
denial of service (memory consumption) by triggering kfifo_alloc()
failures (bnc#1161518).

CVE-2019-14896: A heap overflow was found in the add_ie_rates()
function of the Marvell Wifi Driver (bsc#1157157).

CVE-2019-14897: A stack overflow was found in the
lbs_ibss_join_existing() function of the Marvell Wifi Driver
(bsc#1157155).

CVE-2019-19318: Mounting a crafted btrfs image twice could have caused
a use-after-free (bnc#1158026).

CVE-2019-19036: An issue discovered in btrfs_root_node in
fs/btrfs/ctree.c allowed a NULL pointer dereference because
rcu_dereference(root->node) can be zero (bnc#1157692).

CVE-2019-14615: An information disclosure vulnerability existed due to
insufficient control flow in certain data structures for some Intel(R)
Processors (bnc#1160195).

CVE-2019-19965: There was a NULL pointer dereference in
drivers/scsi/libsas/sas_discover.c because of mishandling of port
disconnection during discovery, related to a PHY down race condition
(bnc#1159911).

CVE-2019-19927: Fixed an out-of-bounds read access when mounting a
crafted f2fs filesystem image and performing some operations, related
to ttm_put_pages in drivers/gpu/drm/ttm/ttm_page_alloc.c
(bnc#1160147).

The update package also includes non-security fixes. See advisory for
details.

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
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  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1163880");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1163971");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164051");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164069");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164098");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164115");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164314");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164315");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164388");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164471");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164598");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164632");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164705");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164712");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164727");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164728");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164729");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164730");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164731");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164732");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164733");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164734");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1164735");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-14615/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-14896/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-14897/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-16994/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-19036/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-19045/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-19054/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-19318/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-19927/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-19965/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-2732/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-7053/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-8428/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-8648/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-8992/");
  # https://www.suse.com/support/update/announcement/2020/suse-su-20200558-1/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3ee0137c");
  script_set_attribute(attribute:"solution", value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 12-SP5:zypper in -t patch
SUSE-SLE-SERVER-12-SP5-2020-558=1");
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-14896");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-14897");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/03/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-azure");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-azure-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-azure-base-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-azure-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-azure-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-azure-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-syms-azure");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
  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) 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/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);
if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", cpu);


sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(5)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP5", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"kernel-azure-4.12.14-16.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"kernel-azure-base-4.12.14-16.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"kernel-azure-base-debuginfo-4.12.14-16.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"kernel-azure-debuginfo-4.12.14-16.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"kernel-azure-debugsource-4.12.14-16.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"kernel-azure-devel-4.12.14-16.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", cpu:"x86_64", reference:"kernel-syms-azure-4.12.14-16.10.1")) 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, "kernel");
}
VendorProductVersionCPE
novellsuse_linuxkernel-azurep-cpe:/a:novell:suse_linux:kernel-azure
novellsuse_linuxkernel-azure-basep-cpe:/a:novell:suse_linux:kernel-azure-base
novellsuse_linuxkernel-azure-base-debuginfop-cpe:/a:novell:suse_linux:kernel-azure-base-debuginfo
novellsuse_linuxkernel-azure-debuginfop-cpe:/a:novell:suse_linux:kernel-azure-debuginfo
novellsuse_linuxkernel-azure-debugsourcep-cpe:/a:novell:suse_linux:kernel-azure-debugsource
novellsuse_linuxkernel-azure-develp-cpe:/a:novell:suse_linux:kernel-azure-devel
novellsuse_linuxkernel-syms-azurep-cpe:/a:novell:suse_linux:kernel-syms-azure
novellsuse_linux12cpe:/o:novell:suse_linux:12

References

CVSS2

10

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS3

9.8

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

7.5

Confidence

High

EPSS

0.017

Percentile

87.7%