Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2019-1486)

# Copyright (C) 2020 Greenbone Networks GmbH
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (C) the respective author(s)
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.1.2.2019.1486");
  script_version("2020-02-05T08:56:28+0000");
  script_cve_id("CVE-2013-4579", "CVE-2013-6367", "CVE-2014-1446", "CVE-2014-3145", "CVE-2014-3610", "CVE-2014-3940", "CVE-2014-5472", "CVE-2015-0573", "CVE-2015-1573", "CVE-2015-8963", "CVE-2016-2117", "CVE-2016-2186", "CVE-2016-6197", "CVE-2017-2636", "CVE-2017-6347", "CVE-2017-7495", "CVE-2018-12232", "CVE-2018-14614", "CVE-2018-14633", "CVE-2018-16882");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2020-02-05 08:56:28 +0000 (Wed, 05 Feb 2020)");
  script_tag(name:"creation_date", value:"2020-01-23 11:53:58 +0000 (Thu, 23 Jan 2020)");
  script_name("Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2019-1486)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("Huawei EulerOS Local Security Checks");
  script_dependencies("gb_huawei_euleros_consolidation.nasl");
  script_mandatory_keys("ssh/login/euleros", "ssh/login/rpms", re:"ssh/login/release=EULEROSVIRTARM64-3\.0\.1\.0");

  script_xref(name:"EulerOS-SA", value:"2019-1486");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-1486");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS
  'kernel' package(s) announced via the EulerOS-SA-2019-1486 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags. An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system.(CVE-2014-5472)

An issue was discovered in the Linux kernel's F2FS filesystem code. An out-of-bounds access vulnerability is possible the in __remove_dirty_segment() in fs/f2fs/segment.c function when mounting a crafted f2fs image.(CVE-2018-14614)

Race condition in kernel/events/core.c in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service via use-after-free vulnerability by leveraging incorrect handling of an swevent data structure during a CPU unplug operation.(CVE-2015-8963)

The skbs processed by ip_cmsg_recv() are not guaranteed to be linear (e.g. when sending UDP packets over loopback with MSGMORE). Using csum_partial() on potentially the whole skb len is dangerous, instead be on the safe side and use skb_checksum(). This may lead to an infoleak as the kernel memory may be checksummed and sent as part of the packet.(CVE-2017-6347)

The apic_get_tmcct function in arch/x86/kvm/lapic.c in the KVM subsystem in the Linux kernel through 3.12.5 allows guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via crafted modifications of the TMICT value.(CVE-2013-6367)

A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error while processing posted interrupt address, it unmaps the 'pi_desc_page' without resetting 'pi_desc' descriptor address, which is later used in pi_test_and_clear_on(). A guest user/process could use this flaw to crash the host kernel resulting in DoS or potentially gain privileged access to a system.(CVE-2018-16882)

It was discovered that the atl2_probe() function in the Atheros L2 Ethernet driver in the Linux kernel incorrectly enabled scatter/gather I/O. A remote attacker could use this flaw to obtain potentially sensitive information from the kernel memory.(CVE-2016-2117)

A flaw was found in the way the nft_flush_table() function of the Linux kernel's netfilter tables implementation flushed rules that were referencing deleted chains. A local user who has the CAP_NET_ADMIN capability could use this flaw to crash the system.(CVE-2015-1573)

The powermate_probe function in drivers/i ...

  Description truncated. Please see the references for more information.");

  script_tag(name:"affected", value:"'kernel' package(s) on Huawei EulerOS Virtualization for ARM 64 3.0.1.0.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "EULEROSVIRTARM64-3.0.1.0") {

  if(!isnull(res = isrpmvuln(pkg:"kernel", rpm:"kernel~4.19.28~1.2.117", rls:"EULEROSVIRTARM64-3.0.1.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~4.19.28~1.2.117", rls:"EULEROSVIRTARM64-3.0.1.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-headers", rpm:"kernel-headers~4.19.28~1.2.117", rls:"EULEROSVIRTARM64-3.0.1.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-tools", rpm:"kernel-tools~4.19.28~1.2.117", rls:"EULEROSVIRTARM64-3.0.1.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-tools-libs", rpm:"kernel-tools-libs~4.19.28~1.2.117", rls:"EULEROSVIRTARM64-3.0.1.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-tools-libs-devel", rpm:"kernel-tools-libs-devel~4.19.28~1.2.117", rls:"EULEROSVIRTARM64-3.0.1.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"perf", rpm:"perf~4.19.28~1.2.117", rls:"EULEROSVIRTARM64-3.0.1.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python-perf", rpm:"python-perf~4.19.28~1.2.117", rls:"EULEROSVIRTARM64-3.0.1.0"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if (__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);