Vulnerabilities > CVE-2019-19037 - NULL Pointer Dereference vulnerability in Linux Kernel

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
linux
CWE-476
nessus
NVD
Published: 2019-11-21
Updated: 2019-12-05

Summary

ext4_empty_dir in fs/ext4/namei.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because ext4_read_dirblock(inode,0,DIRENT_HTREE) can be zero.

Vulnerable Configurations

Part Description Count
OS
Linux
3208

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2020-1508.NASL
    descriptionAccording to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In f2fs_xattr_generic_list of xattr.c, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not required for exploitation.(CVE-2020-0067) - An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. arch/powerpc/kernel/idle_book3s.S does not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka CID-53a712bae5dd.(CVE-2020-11669) - In the Linux kernel before 5.6.1, drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink camera USB driver) mishandles invalid descriptors, aka CID-a246b4d54770.(CVE-2020-11668) - In the Linux kernel before 5.4.12, drivers/input/input.c has out-of-bounds writes via a crafted keycode table, as demonstrated by input_set_keycode, aka CID-cb222aed03d7.(CVE-2019-20636) - An issue was discovered in the Linux kernel before 5.6.1. drivers/media/usb/gspca/ov519.c allows NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints, aka CID-998912346c0d.(CVE-2020-11608) - An issue was discovered in the stv06xx subsystem in the Linux kernel before 5.6.1. drivers/media/usb/gspca/stv06xx/stv06xx.c and drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c mishandle invalid descriptors, as demonstrated by a NULL pointer dereference, aka CID-485b06aadb93.(CVE-2020-11609) - A flaw was found in the Linux kernel
    last seen2020-05-03
    modified2020-04-20
    plugin id135741
    published2020-04-20
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135741
    titleEulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1508)
    code
    #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(135741);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/01");

  script_cve_id(
    "CVE-2019-19036",
    "CVE-2019-19037",
    "CVE-2019-19039",
    "CVE-2019-19815",
    "CVE-2019-20636",
    "CVE-2020-0067",
    "CVE-2020-11494",
    "CVE-2020-11565",
    "CVE-2020-11608",
    "CVE-2020-11609",
    "CVE-2020-11668",
    "CVE-2020-11669",
    "CVE-2020-1749"
  );

  script_name(english:"EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1508)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the kernel packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

  - In f2fs_xattr_generic_list of xattr.c, there is a
    possible out of bounds read due to a missing bounds
    check. This could lead to local information disclosure
    with System execution privileges needed. User
    interaction is not required for
    exploitation.(CVE-2020-0067)

  - An issue was discovered in the Linux kernel before 5.2
    on the powerpc platform.
    arch/powerpc/kernel/idle_book3s.S does not have
    save/restore functionality for PNV_POWERSAVE_AMR,
    PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka
    CID-53a712bae5dd.(CVE-2020-11669)

  - In the Linux kernel before 5.6.1,
    drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink
    camera USB driver) mishandles invalid descriptors, aka
    CID-a246b4d54770.(CVE-2020-11668)

  - In the Linux kernel before 5.4.12,
    drivers/input/input.c has out-of-bounds writes via a
    crafted keycode table, as demonstrated by
    input_set_keycode, aka
    CID-cb222aed03d7.(CVE-2019-20636)

  - An issue was discovered in the Linux kernel before
    5.6.1. drivers/media/usb/gspca/ov519.c allows NULL
    pointer dereferences in ov511_mode_init_regs and
    ov518_mode_init_regs when there are zero endpoints, aka
    CID-998912346c0d.(CVE-2020-11608)

  - An issue was discovered in the stv06xx subsystem in the
    Linux kernel before 5.6.1.
    drivers/media/usb/gspca/stv06xx/stv06xx.c and
    drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c
    mishandle invalid descriptors, as demonstrated by a
    NULL pointer dereference, aka
    CID-485b06aadb93.(CVE-2020-11609)

  - A flaw was found in the Linux kernel's implementation
    of some networking protocols in IPsec, such as VXLAN
    and GENEVE tunnels over IPv6. When an encrypted tunnel
    is created between two hosts, the kernel isn't
    correctly routing tunneled data over the encrypted link
    rather sending the data unencrypted. This would allow
    anyone in between the two endpoints to read the traffic
    unencrypted. The main threat from this vulnerability is
    to data confidentiality.(CVE-2020-1749)

  - An issue was discovered in the Linux kernel through
    5.6.2. mpol_parse_str in mm/mempolicy.c has a
    stack-based out-of-bounds write because an empty
    nodelist is mishandled during mount option parsing, aka
    CID-aa9f7d5172fa.(CVE-2020-11565)

  - An issue was discovered in slc_bump in
    drivers/net/can/slcan.c in the Linux kernel through
    5.6.2. It allows attackers to read uninitialized
    can_frame data, potentially containing sensitive
    information from kernel stack memory, if the
    configuration lacks CONFIG_INIT_STACK_ALL, aka
    CID-b9258a2cece4.(CVE-2020-11494)

  - btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel
    through 5.3.12 allows a NULL pointer dereference
    because rcu_dereference(root->node) can be
    zero.(CVE-2019-19036)

  - ext4_empty_dir in fs/ext4/namei.c in the Linux kernel
    through 5.3.12 allows a NULL pointer dereference
    because ext4_read_dirblock(inode,0,DIRENT_HTREE) can be
    zero.(CVE-2019-19037)

  - __btrfs_free_extent in fs/btrfs/extent-tree.c in the
    Linux kernel through 5.3.12 calls btrfs_print_leaf in a
    certain ENOENT case, which allows local users to obtain
    potentially sensitive information about register values
    via the dmesg program.(CVE-2019-19039)

  - In the Linux kernel 5.0.21, mounting a crafted f2fs
    filesystem image can cause a NULL pointer dereference
    in f2fs_recover_fsync_data in fs/f2fs/recovery.c. This
    is related to F2FS_P_SB in
    fs/f2fs/f2fs.h.(CVE-2019-19815)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2020-1508
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d1bbee1a");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel packages.");
  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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bpftool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python-perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-perf");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei 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");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(8)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

flag = 0;

pkgs = ["bpftool-4.19.36-vhulk1907.1.0.h729.eulerosv2r8",
        "kernel-4.19.36-vhulk1907.1.0.h729.eulerosv2r8",
        "kernel-devel-4.19.36-vhulk1907.1.0.h729.eulerosv2r8",
        "kernel-headers-4.19.36-vhulk1907.1.0.h729.eulerosv2r8",
        "kernel-source-4.19.36-vhulk1907.1.0.h729.eulerosv2r8",
        "kernel-tools-4.19.36-vhulk1907.1.0.h729.eulerosv2r8",
        "kernel-tools-libs-4.19.36-vhulk1907.1.0.h729.eulerosv2r8",
        "perf-4.19.36-vhulk1907.1.0.h729.eulerosv2r8",
        "python-perf-4.19.36-vhulk1907.1.0.h729.eulerosv2r8",
        "python3-perf-4.19.36-vhulk1907.1.0.h729.eulerosv2r8"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"8", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel");
}
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2020-1536.NASL
    descriptionAccording to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - In the Linux kernel before 5.2.9, there is an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_pro.c driver, aka CID-ead16e53c2f0.(CVE-2019-19536) - In the Linux kernel before 5.2.9, there is an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver, aka CID-30a8beeb3042.(CVE-2019-19535) - vcs_write in drivers/tty/vt/vc_screen.c in the Linux kernel through 5.3.13 does not prevent write access to vcsu devices, aka CID-0c9acb1af77a.(CVE-2019-19252) - In the AppleTalk subsystem in the Linux kernel before 5.1, there is a potential NULL pointer dereference because register_snap_client may return NULL. This will lead to denial of service in net/appletalk/aarp.c and net/appletalk/ddp.c, as demonstrated by unregister_snap_client, aka CID-9804501fa122.(CVE-2019-19227) - A memory leak in the adis_update_scan_mode() function in drivers/iio/imu/adis_buffer.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-ab612b1daf41.(CVE-2019-19060) - In the Linux kernel before 5.3.11, there is an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_core.c driver, aka CID-f7a1337f0d29.(CVE-2019-19534) - In the Linux kernel before 5.3.11, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/net/can/usb/mcba_usb.c driver, aka CID-4d6636498c41.(CVE-2019-19529) - In the Linux kernel before 5.3.9, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/nfc/pn533/usb.c driver, aka CID-6af3aa57a098.(CVE-2019-19526) - In the Linux kernel before 5.3.6, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/net/ieee802154/atusb.c driver, aka CID-7fd25e6fc035.(CVE-2019-19525) - In the Linux kernel before 5.3.9, there are multiple out-of-bounds write bugs that can be caused by a malicious USB device in the Linux kernel HID drivers, aka CID-d9d4b1e46d95. This affects drivers/hid/hid-axff.c, drivers/hid/hid-dr.c, drivers/hid/hid-emsff.c, drivers/hid/hid-gaff.c, drivers/hid/hid-holtekff.c, drivers/hid/hid-lg2ff.c, drivers/hid/hid-lg3ff.c, drivers/hid/hid-lg4ff.c, drivers/hid/hid-lgff.c, drivers/hid/hid-logitech-hidpp.c, drivers/hid/hid-microsoft.c, drivers/hid/hid-sony.c, drivers/hid/hid-tmff.c, and drivers/hid/hid-zpff.c.(CVE-2019-19532) - In the Linux kernel before 5.2.10, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver, aka CID-9c09b214f30e.(CVE-2019-19527) - ** DISPUTED ** The Linux kernel through 5.0.7, when CONFIG_IA32_AOUT is enabled and ia32_aout is loaded, allows local users to bypass ASLR on setuid a.out programs (if any exist) because install_exec_creds() is called too late in load_aout_binary() in fs/binfmt_aout.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat. NOTE: the software maintainer disputes that this is a vulnerability because ASLR for a.out format executables has never been supported.(CVE-2019-11191) - In the Linux kernel before 5.3.12, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/input/ff-memless.c driver, aka CID-fa3a5a1880c9.(CVE-2019-19524) - drivers/net/wireless/marvell/libertas/if_sdio.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference.(CVE-2019-16232) - drivers/net/fjes/fjes_main.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference.(CVE-2019-16231) - ** DISPUTED ** drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference. NOTE: The security community disputes this issues as not being serious enough to be deserving a CVE id.(CVE-2019-16229) - Linux kernel CIFS implementation, version 4.9.0 is vulnerable to a relative paths injection in directory entry lists.(CVE-2019-10220) - A heap overflow flaw was found in the Linux kernel, all versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The vulnerability allows a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code. The highest threat with this vulnerability is with the availability of the system. If code execution occurs, the code will run with the permissions of root. This will affect both confidentiality and integrity of files on the system.(CVE-2019-14901) - The Linux kernel before 5.4.2 mishandles ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163.(CVE-2019-19767) - A heap-based buffer overflow was discovered in the Linux kernel, all versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could allow the remote device to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2019-14895) - Linux Kernel could allow a local authenticated attacker to obtain sensitive information, caused by a Transaction Asynchronous Abort (TAA) h/w issue in KVM. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain sensitive information, and use this information to launch further attacks against the affected system.(CVE-2019-19338) - TSX Asynchronous Abort condition on some CPUs utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.(CVE-2019-11135) - An out-of-bounds memory write issue was found in the Linux Kernel, version 3.13 through 5.4, in the way the Linux kernel
    last seen2020-05-08
    modified2020-05-01
    plugin id136239
    published2020-05-01
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/136239
    titleEulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1536)
    code
    #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(136239);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/07");

  script_cve_id(
    "CVE-2019-10220",
    "CVE-2019-11135",
    "CVE-2019-11191",
    "CVE-2019-14895",
    "CVE-2019-14896",
    "CVE-2019-14897",
    "CVE-2019-14901",
    "CVE-2019-16229",
    "CVE-2019-16231",
    "CVE-2019-16232",
    "CVE-2019-19036",
    "CVE-2019-19037",
    "CVE-2019-19039",
    "CVE-2019-19060",
    "CVE-2019-19227",
    "CVE-2019-19252",
    "CVE-2019-19332",
    "CVE-2019-19338",
    "CVE-2019-19447",
    "CVE-2019-19524",
    "CVE-2019-19525",
    "CVE-2019-19526",
    "CVE-2019-19527",
    "CVE-2019-19529",
    "CVE-2019-19532",
    "CVE-2019-19534",
    "CVE-2019-19535",
    "CVE-2019-19536",
    "CVE-2019-19767",
    "CVE-2019-19768",
    "CVE-2019-19770",
    "CVE-2019-19807",
    "CVE-2019-19815",
    "CVE-2019-19922",
    "CVE-2019-19947",
    "CVE-2019-20095",
    "CVE-2019-20096",
    "CVE-2019-20636",
    "CVE-2019-3016",
    "CVE-2019-5108",
    "CVE-2020-0067",
    "CVE-2020-11494",
    "CVE-2020-11565",
    "CVE-2020-11608",
    "CVE-2020-11609",
    "CVE-2020-11668",
    "CVE-2020-11669",
    "CVE-2020-1749",
    "CVE-2020-2732",
    "CVE-2020-8428",
    "CVE-2020-8647",
    "CVE-2020-8648",
    "CVE-2020-8649",
    "CVE-2020-9383"
  );

  script_name(english:"EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1536)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization for ARM 64 host is missing multiple security
updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the kernel packages installed, the
EulerOS Virtualization for ARM 64 installation on the remote host is
affected by the following vulnerabilities :

  - In the Linux kernel before 5.2.9, there is an info-leak
    bug that can be caused by a malicious USB device in the
    drivers/net/can/usb/peak_usb/pcan_usb_pro.c driver, aka
    CID-ead16e53c2f0.(CVE-2019-19536)

  - In the Linux kernel before 5.2.9, there is an info-leak
    bug that can be caused by a malicious USB device in the
    drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver, aka
    CID-30a8beeb3042.(CVE-2019-19535)

  - vcs_write in drivers/tty/vt/vc_screen.c in the Linux
    kernel through 5.3.13 does not prevent write access to
    vcsu devices, aka CID-0c9acb1af77a.(CVE-2019-19252)

  - In the AppleTalk subsystem in the Linux kernel before
    5.1, there is a potential NULL pointer dereference
    because register_snap_client may return NULL. This will
    lead to denial of service in net/appletalk/aarp.c and
    net/appletalk/ddp.c, as demonstrated by
    unregister_snap_client, aka
    CID-9804501fa122.(CVE-2019-19227)

  - A memory leak in the adis_update_scan_mode() function
    in drivers/iio/imu/adis_buffer.c in the Linux kernel
    before 5.3.9 allows attackers to cause a denial of
    service (memory consumption), aka
    CID-ab612b1daf41.(CVE-2019-19060)

  - In the Linux kernel before 5.3.11, there is an
    info-leak bug that can be caused by a malicious USB
    device in the
    drivers/net/can/usb/peak_usb/pcan_usb_core.c driver,
    aka CID-f7a1337f0d29.(CVE-2019-19534)

  - In the Linux kernel before 5.3.11, there is a
    use-after-free bug that can be caused by a malicious
    USB device in the drivers/net/can/usb/mcba_usb.c
    driver, aka CID-4d6636498c41.(CVE-2019-19529)

  - In the Linux kernel before 5.3.9, there is a
    use-after-free bug that can be caused by a malicious
    USB device in the drivers/nfc/pn533/usb.c driver, aka
    CID-6af3aa57a098.(CVE-2019-19526)

  - In the Linux kernel before 5.3.6, there is a
    use-after-free bug that can be caused by a malicious
    USB device in the drivers/net/ieee802154/atusb.c
    driver, aka CID-7fd25e6fc035.(CVE-2019-19525)

  - In the Linux kernel before 5.3.9, there are multiple
    out-of-bounds write bugs that can be caused by a
    malicious USB device in the Linux kernel HID drivers,
    aka CID-d9d4b1e46d95. This affects
    drivers/hid/hid-axff.c, drivers/hid/hid-dr.c,
    drivers/hid/hid-emsff.c, drivers/hid/hid-gaff.c,
    drivers/hid/hid-holtekff.c, drivers/hid/hid-lg2ff.c,
    drivers/hid/hid-lg3ff.c, drivers/hid/hid-lg4ff.c,
    drivers/hid/hid-lgff.c,
    drivers/hid/hid-logitech-hidpp.c,
    drivers/hid/hid-microsoft.c, drivers/hid/hid-sony.c,
    drivers/hid/hid-tmff.c, and
    drivers/hid/hid-zpff.c.(CVE-2019-19532)

  - In the Linux kernel before 5.2.10, there is a
    use-after-free bug that can be caused by a malicious
    USB device in the drivers/hid/usbhid/hiddev.c driver,
    aka CID-9c09b214f30e.(CVE-2019-19527)

  - ** DISPUTED ** The Linux kernel through 5.0.7, when
    CONFIG_IA32_AOUT is enabled and ia32_aout is loaded,
    allows local users to bypass ASLR on setuid a.out
    programs (if any exist) because install_exec_creds() is
    called too late in load_aout_binary() in
    fs/binfmt_aout.c, and thus the ptrace_may_access()
    check has a race condition when reading /proc/pid/stat.
    NOTE: the software maintainer disputes that this is a
    vulnerability because ASLR for a.out format executables
    has never been supported.(CVE-2019-11191)

  - In the Linux kernel before 5.3.12, there is a
    use-after-free bug that can be caused by a malicious
    USB device in the drivers/input/ff-memless.c driver,
    aka CID-fa3a5a1880c9.(CVE-2019-19524)

  - drivers/net/wireless/marvell/libertas/if_sdio.c in the
    Linux kernel 5.2.14 does not check the alloc_workqueue
    return value, leading to a NULL pointer
    dereference.(CVE-2019-16232)

  - drivers/net/fjes/fjes_main.c in the Linux kernel 5.2.14
    does not check the alloc_workqueue return value,
    leading to a NULL pointer dereference.(CVE-2019-16231)

  - ** DISPUTED **
    drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c in the Linux
    kernel 5.2.14 does not check the alloc_workqueue return
    value, leading to a NULL pointer dereference. NOTE: The
    security community disputes this issues as not being
    serious enough to be deserving a CVE
    id.(CVE-2019-16229)

  - Linux kernel CIFS implementation, version 4.9.0 is
    vulnerable to a relative paths injection in directory
    entry lists.(CVE-2019-10220)

  - A heap overflow flaw was found in the Linux kernel, all
    versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi
    chip driver. The vulnerability allows a remote attacker
    to cause a system crash, resulting in a denial of
    service, or execute arbitrary code. The highest threat
    with this vulnerability is with the availability of the
    system. If code execution occurs, the code will run
    with the permissions of root. This will affect both
    confidentiality and integrity of files on the
    system.(CVE-2019-14901)

  - The Linux kernel before 5.4.2 mishandles
    ext4_expand_extra_isize, as demonstrated by
    use-after-free errors in __ext4_expand_extra_isize and
    ext4_xattr_set_entry, related to fs/ext4/inode.c and
    fs/ext4/super.c, aka CID-4ea99936a163.(CVE-2019-19767)

  - A heap-based buffer overflow was discovered in the
    Linux kernel, all versions 3.x.x and 4.x.x before
    4.18.0, in Marvell WiFi chip driver. The flaw could
    occur when the station attempts a connection
    negotiation during the handling of the remote devices
    country settings. This could allow the remote device to
    cause a denial of service (system crash) or possibly
    execute arbitrary code.(CVE-2019-14895)

  - Linux Kernel could allow a local authenticated attacker
    to obtain sensitive information, caused by a
    Transaction Asynchronous Abort (TAA) h/w issue in KVM.
    By sending a specially-crafted request, an attacker
    could exploit this vulnerability to obtain sensitive
    information, and use this information to launch further
    attacks against the affected system.(CVE-2019-19338)

  - TSX Asynchronous Abort condition on some CPUs utilizing
    speculative execution may allow an authenticated user
    to potentially enable information disclosure via a side
    channel with local access.(CVE-2019-11135)

  - An out-of-bounds memory write issue was found in the
    Linux Kernel, version 3.13 through 5.4, in the way the
    Linux kernel's KVM hypervisor handled the
    'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID
    features emulated by the KVM hypervisor. A user or
    process able to access the '/dev/kvm' device could use
    this flaw to crash the system, resulting in a denial of
    service.(CVE-2019-19332)

  - kernel/sched/fair.c in the Linux kernel before 5.3.9,
    when cpu.cfs_quota_us is used (e.g., with Kubernetes),
    allows attackers to cause a denial of service against
    non-cpu-bound applications by generating a workload
    that triggers unwanted slice expiration, aka
    CID-de53fd7aedb1. (In other words, although this slice
    expiration would typically be seen with benign
    workloads, it is possible that an attacker could
    calculate how many stray requests are required to force
    an entire Kubernetes cluster into a low-performance
    state caused by slice expiration, and ensure that a
    DDoS attack sent that number of stray requests. An
    attack does not affect the stability of the kernel it
    only causes mismanagement of application
    execution.)(CVE-2019-19922)

  - A stack-based buffer overflow was found in the Linux
    kernel, version kernel-2.6.32, in Marvell WiFi chip
    driver. An attacker is able to cause a denial of
    service (system crash) or, possibly execute arbitrary
    code, when a STA works in IBSS mode (allows connecting
    stations together without the use of an AP) and
    connects to another STA.(CVE-2019-14897)

  - A heap-based buffer overflow vulnerability was found in
    the Linux kernel, version kernel-2.6.32, in Marvell
    WiFi chip driver. A remote attacker could cause a
    denial of service (system crash) or, possibly execute
    arbitrary code, when the lbs_ibss_join_existing
    function is called after a STA connects to an
    AP.(CVE-2019-14896)

  - In the Linux kernel through 5.4.6, there are
    information leaks of uninitialized memory to a USB
    device in the
    drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
    driver, aka CID-da2311a6385c.(CVE-2019-19947)

  - In the Linux kernel before 5.1, there is a memory leak
    in __feat_register_sp() in net/dccp/feat.c, which may
    cause denial of service, aka
    CID-1d3ff0950e2b.(CVE-2019-20096)

  - mwifiex_tm_cmd in
    drivers/net/wireless/marvell/mwifiex/cfg80211.c in the
    Linux kernel before 5.1.6 has some error-handling cases
    that did not free allocated hostcmd memory, aka
    CID-003b686ace82. This will cause a memory leak and
    denial of service.(CVE-2019-20095)

  - An exploitable denial-of-service vulnerability exists
    in the Linux kernel prior to mainline 5.3. An attacker
    could exploit this vulnerability by triggering AP to
    send IAPP location updates for stations before the
    required authentication process has completed. This
    could lead to different denial-of-service scenarios,
    either by causing CAM table attacks, or by leading to
    traffic flapping if faking already existing clients in
    other nearby APs of the same wireless infrastructure.
    An attacker can forge Authentication and Association
    Request packets to trigger this
    vulnerability.(CVE-2019-5108)

  - In a Linux KVM guest that has PV TLB enabled, a process
    in the guest kernel may be able to read memory
    locations from another process in the same guest. This
    problem is limit to the host running linux kernel 4.10
    with a guest running linux kernel 4.16 or later. The
    problem mainly affects AMD processors but Intel CPUs
    cannot be ruled out.(CVE-2019-3016)

  - fs/namei.c in the Linux kernel before 5.5 has a
    may_create_in_sticky use-after-free, which allows local
    users to cause a denial of service (OOPS) or possibly
    obtain sensitive information from kernel memory, aka
    CID-d0cb50185ae9. One attack vector may be an open
    system call for a UNIX domain socket, if the socket is
    being moved to a new parent directory and its old
    parent directory is being removed.(CVE-2020-8428)

  - There is a use-after-free vulnerability in the Linux
    kernel through 5.5.2 in the n_tty_receive_buf_common
    function in drivers/tty/n_tty.c.(CVE-2020-8648)

  - An issue was discovered in the Linux kernel through
    5.5.6. set_fdc in drivers/block/floppy.c leads to a
    wait_til_ready out-of-bounds read because the FDC index
    is not checked for errors before assigning it, aka
    CID-2e90ca68b0d2.(CVE-2020-9383)

  - There is a use-after-free vulnerability in the Linux
    kernel through 5.5.2 in the vgacon_invert_region
    function in
    drivers/video/console/vgacon.c.(CVE-2020-8649)

  - There is a use-after-free vulnerability in the Linux
    kernel through 5.5.2 in the vc_do_resize function in
    drivers/tty/vt/vt.c.(CVE-2020-8647)

  - In the Linux kernel 5.0.21, 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, related to
    dump_orphan_list in fs/ext4/super.c.(CVE-2019-19447)

  - A flaw was discovered in the way that the KVM
    hypervisor handled instruction emulation for an L2
    guest when nested virtualisation is enabled. Under some
    circumstances, an L2 guest may trick the L0 guest into
    accessing sensitive L1 resources that should be
    inaccessible to the L2 guest.(CVE-2020-2732)

  - In the Linux kernel before 5.3.11, sound/core/timer.c
    has a use-after-free caused by erroneous code
    refactoring, aka CID-e7af6307a8a5. This is related to
    snd_timer_open and snd_timer_close_locked. The timeri
    variable was originally intended to be for a newly
    created timer instance, but was used for a different
    purpose after refactoring.(CVE-2019-19807)

  - In the Linux kernel 5.4.0-rc2, there is a
    use-after-free (read) in the __blk_add_trace function
    in kernel/trace/blktrace.c (which is used to fill out a
    blk_io_trace structure and place it in a per-cpu
    sub-buffer).(CVE-2019-19768)

  - In the Linux kernel 5.0.21, mounting a crafted f2fs
    filesystem image can cause a NULL pointer dereference
    in f2fs_recover_fsync_data in fs/f2fs/recovery.c. This
    is related to F2FS_P_SB in
    fs/f2fs/f2fs.h.(CVE-2019-19815)

  - ** DISPUTED ** __btrfs_free_extent in
    fs/btrfs/extent-tree.c in the Linux kernel through
    5.3.12 calls btrfs_print_leaf in a certain ENOENT case,
    which allows local users to obtain potentially
    sensitive information about register values via the
    dmesg program. NOTE: The BTRFS development team
    disputes this issues as not being a vulnerability
    because '1) The kernel provide facilities to restrict
    access to dmesg - dmesg_restrict=1 sysctl option. So
    it's really up to the system administrator to judge
    whether dmesg access shall be disallowed or not. 2)
    WARN/WARN_ON are widely used macros in the linux
    kernel. If this CVE is considered valid this would mean
    there are literally thousands CVE lurking in the kernel
    - something which clearly is not the
    case.'(CVE-2019-19039)

  - ext4_empty_dir in fs/ext4/namei.c in the Linux kernel
    through 5.3.12 allows a NULL pointer dereference
    because ext4_read_dirblock(inode,0,DIRENT_HTREE) can be
    zero.(CVE-2019-19037)

  - btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel
    through 5.3.12 allows a NULL pointer dereference
    because rcu_dereference(root->node) can be
    zero.(CVE-2019-19036)

  - In the Linux kernel 4.19.83, there is a use-after-free
    (read) in the debugfs_remove function in
    fs/debugfs/inode.c (which is used to remove a file or
    directory in debugfs that was previously created with a
    call to another debugfs function such as
    debugfs_create_file).(CVE-2019-19770)

  - An issue was discovered in slc_bump in
    drivers/net/can/slcan.c in the Linux kernel through
    5.6.2. It allows attackers to read uninitialized
    can_frame data, potentially containing sensitive
    information from kernel stack memory, if the
    configuration lacks CONFIG_INIT_STACK_ALL, aka
    CID-b9258a2cece4.(CVE-2020-11494)

  - An issue was discovered in the Linux kernel through
    5.6.2. mpol_parse_str in mm/mempolicy.c has a
    stack-based out-of-bounds write because an empty
    nodelist is mishandled during mount option parsing, aka
    CID-aa9f7d5172fa.(CVE-2020-11565)

  - A flaw was found in the Linux kernel's implementation
    of some networking protocols in IPsec, such as VXLAN
    and GENEVE tunnels over IPv6. When an encrypted tunnel
    is created between two hosts, the kernel isn't
    correctly routing tunneled data over the encrypted link
    rather sending the data unencrypted. This would allow
    anyone in between the two endpoints to read the traffic
    unencrypted. The main threat from this vulnerability is
    to data confidentiality.(CVE-2020-1749)

  - An issue was discovered in the stv06xx subsystem in the
    Linux kernel before 5.6.1.
    drivers/media/usb/gspca/stv06xx/stv06xx.c and
    drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c
    mishandle invalid descriptors, as demonstrated by a
    NULL pointer dereference, aka
    CID-485b06aadb93.(CVE-2020-11609)

  - An issue was discovered in the Linux kernel before
    5.6.1. drivers/media/usb/gspca/ov519.c allows NULL
    pointer dereferences in ov511_mode_init_regs and
    ov518_mode_init_regs when there are zero endpoints, aka
    CID-998912346c0d.(CVE-2020-11608)

  - In the Linux kernel before 5.4.12,
    drivers/input/input.c has out-of-bounds writes via a
    crafted keycode table, as demonstrated by
    input_set_keycode, aka
    CID-cb222aed03d7.(CVE-2019-20636)

  - In the Linux kernel before 5.6.1,
    drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink
    camera USB driver) mishandles invalid descriptors, aka
    CID-a246b4d54770.(CVE-2020-11668)

  - An issue was discovered in the Linux kernel through
    5.6.2. mpol_parse_str in mm/mempolicy.c has a
    stack-based out-of-bounds write because an empty
    nodelist is mishandled during mount option parsing, aka
    CID-aa9f7d5172fa.(CVE-2020-0067)

  - An issue was discovered in the Linux kernel before 5.2
    on the powerpc platform.
    arch/powerpc/kernel/idle_book3s.S does not have
    save/restore functionality for PNV_POWERSAVE_AMR,
    PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka
    CID-53a712bae5dd.(CVE-2020-11669)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2020-1536
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a90e7d8e");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel packages.");
  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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python-perf");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei 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");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.2.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.2.0");
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

flag = 0;

pkgs = ["kernel-4.19.36-vhulk1907.1.0.h729",
        "kernel-devel-4.19.36-vhulk1907.1.0.h729",
        "kernel-headers-4.19.36-vhulk1907.1.0.h729",
        "kernel-tools-4.19.36-vhulk1907.1.0.h729",
        "kernel-tools-libs-4.19.36-vhulk1907.1.0.h729",
        "kernel-tools-libs-devel-4.19.36-vhulk1907.1.0.h729",
        "perf-4.19.36-vhulk1907.1.0.h729",
        "python-perf-4.19.36-vhulk1907.1.0.h729"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-2114.NASL
    descriptionSeveral vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2018-13093, CVE-2018-13094 Wen Xu from SSLab at Gatech reported several NULL pointer dereference flaws that may be triggered when mounting and operating a crafted XFS volume. An attacker able to mount arbitrary XFS volumes could use this to cause a denial of service (crash). CVE-2018-20976 It was discovered that the XFS file-system implementation did not correctly handle some mount failure conditions, which could lead to a use-after-free. The security impact of this is unclear. CVE-2018-21008 It was discovered that the rsi wifi driver did not correctly handle some failure conditions, which could lead to a use-after- free. The security impact of this is unclear. CVE-2019-0136 It was discovered that the wifi soft-MAC implementation (mac80211) did not properly authenticate Tunneled Direct Link Setup (TDLS) messages. A nearby attacker could use this for denial of service (loss of wifi connectivity). CVE-2019-2215 The syzkaller tool discovered a use-after-free vulnerability in the Android binder driver. A local user on a system with this driver enabled could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation. However, this driver is not enabled on Debian packaged kernels. CVE-2019-10220 Various developers and researchers found that if a crafted file- system or malicious file server presented a directory with filenames including a
    last seen2020-03-17
    modified2020-03-06
    plugin id134240
    published2020-03-06
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/134240
    titleDebian DLA-2114-1 : linux-4.9 security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2114-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(134240);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/10");

  script_cve_id("CVE-2018-13093", "CVE-2018-13094", "CVE-2018-20976", "CVE-2018-21008", "CVE-2019-0136", "CVE-2019-10220", "CVE-2019-14615", "CVE-2019-14814", "CVE-2019-14815", "CVE-2019-14816", "CVE-2019-14895", "CVE-2019-14896", "CVE-2019-14897", "CVE-2019-14901", "CVE-2019-15098", "CVE-2019-15217", "CVE-2019-15291", "CVE-2019-15505", "CVE-2019-15917", "CVE-2019-16746", "CVE-2019-17052", "CVE-2019-17053", "CVE-2019-17054", "CVE-2019-17055", "CVE-2019-17056", "CVE-2019-17075", "CVE-2019-17133", "CVE-2019-17666", "CVE-2019-18282", "CVE-2019-18683", "CVE-2019-18809", "CVE-2019-19037", "CVE-2019-19051", "CVE-2019-19052", "CVE-2019-19056", "CVE-2019-19057", "CVE-2019-19062", "CVE-2019-19066", "CVE-2019-19068", "CVE-2019-19227", "CVE-2019-19332", "CVE-2019-19447", "CVE-2019-19523", "CVE-2019-19524", "CVE-2019-19525", "CVE-2019-19527", "CVE-2019-19530", "CVE-2019-19531", "CVE-2019-19532", "CVE-2019-19533", "CVE-2019-19534", "CVE-2019-19535", "CVE-2019-19536", "CVE-2019-19537", "CVE-2019-19767", "CVE-2019-19947", "CVE-2019-19965", "CVE-2019-20096", "CVE-2019-2215");

  script_name(english:"Debian DLA-2114-1 : linux-4.9 security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service or information
leaks.

CVE-2018-13093, CVE-2018-13094

Wen Xu from SSLab at Gatech reported several NULL pointer dereference
flaws that may be triggered when mounting and operating a crafted XFS
volume. An attacker able to mount arbitrary XFS volumes could use this
to cause a denial of service (crash).

CVE-2018-20976

It was discovered that the XFS file-system implementation did not
correctly handle some mount failure conditions, which could lead to a
use-after-free. The security impact of this is unclear.

CVE-2018-21008

It was discovered that the rsi wifi driver did not correctly handle
some failure conditions, which could lead to a use-after- free. The
security impact of this is unclear.

CVE-2019-0136

It was discovered that the wifi soft-MAC implementation (mac80211) did
not properly authenticate Tunneled Direct Link Setup (TDLS) messages.
A nearby attacker could use this for denial of service (loss of wifi
connectivity).

CVE-2019-2215

The syzkaller tool discovered a use-after-free vulnerability in the
Android binder driver. A local user on a system with this driver
enabled could use this to cause a denial of service (memory corruption
or crash) or possibly for privilege escalation. However, this driver
is not enabled on Debian packaged kernels.

CVE-2019-10220

Various developers and researchers found that if a crafted file-
system or malicious file server presented a directory with filenames
including a '/' character, this could confuse and possibly defeat
security checks in applications that read the directory.

The kernel will now return an error when reading such a
directory, rather than passing the invalid filenames on to
user-space.

CVE-2019-14615

It was discovered that Intel 9th and 10th generation GPUs did not
clear user-visible state during a context switch, which resulted in
information leaks between GPU tasks. This has been mitigated in the
i915 driver.

The affected chips (gen9 and gen10) are listed at
<https://en.wikipedia.org/wiki/List_of_Intel_graphics_proces
sing_units#Gen9>.

CVE-2019-14814, CVE-2019-14815, CVE-2019-14816

Multiple bugs were discovered in the mwifiex wifi driver, which could
lead to heap buffer overflows. A local user permitted to configure a
device handled by this driver could probably use this for privilege
escalation.

CVE-2019-14895, CVE-2019-14901

ADLab of Venustech discovered potential heap buffer overflows in the
mwifiex wifi driver. On systems using this driver, a malicious
Wireless Access Point or adhoc/P2P peer could use these to cause a
denial of service (memory corruption or crash) or possibly for remote
code execution.

CVE-2019-14896, CVE-2019-14897

ADLab of Venustech discovered potential heap and stack buffer
overflows in the libertas wifi driver. On systems using this driver, a
malicious Wireless Access Point or adhoc/P2P peer could use these to
cause a denial of service (memory corruption or crash) or possibly for
remote code execution.

CVE-2019-15098

Hui Peng and Mathias Payer reported that the ath6kl wifi driver did
not properly validate USB descriptors, which could lead to a NULL pointer derefernce. An attacker able to add USB devices could use this
to cause a denial of service (BUG/oops).

CVE-2019-15217

The syzkaller tool discovered that the zr364xx mdia driver did not
correctly handle devices without a product name string, which could
lead to a NULL pointer dereference. An attacker able to add USB
devices could use this to cause a denial of service (BUG/oops).

CVE-2019-15291

The syzkaller tool discovered that the b2c2-flexcop-usb media driver
did not properly validate USB descriptors, which could lead to a NULL pointer dereference. An attacker able to add USB devices could use
this to cause a denial of service (BUG/oops).

CVE-2019-15505

The syzkaller tool discovered that the technisat-usb2 media driver did
not properly validate incoming IR packets, which could lead to a heap
buffer over-read. An attacker able to add USB devices could use this
to cause a denial of service (BUG/oops) or to read sensitive
information from kernel memory.

CVE-2019-15917

The syzkaller tool found a race condition in code supporting
UART-attached Bluetooth adapters, which could lead to a use-
after-free. A local user with access to a pty device or other suitable
tty device could use this to cause a denial of service (memory
corruption or crash) or possibly for privilege escalation.

CVE-2019-16746

It was discovered that the wifi stack did not validate the content of
beacon heads provided by user-space for use on a wifi interface in
Access Point mode, which could lead to a heap buffer overflow. A local
user permitted to configure a wifi interface could use this to cause a
denial of service (memory corruption or crash) or possibly for
privilege escalation.

CVE-2019-17052, CVE-2019-17053, CVE-2019-17054, CVE-2019-17055,
CVE-2019-17056

Ori Nimron reported that various network protocol implementations

  - AX.25, IEEE 802.15.4, Appletalk, ISDN, and NFC - allowed
    all users to create raw sockets. A local user could use
    this to send arbitrary packets on networks using those
    protocols.

CVE-2019-17075

It was found that the cxgb4 Infiniband driver requested DMA (Direct
Memory Access) to a stack-allocated buffer, which is not supported and
on some systems can result in memory corruption of the stack. A local
user might be able to use this for denial of service (memory
corruption or crash) or possibly for privilege escalation.

CVE-2019-17133

Nicholas Waisman reported that the wifi stack did not valdiate
received SSID information before copying it, which could lead to a
buffer overflow if it is not validated by the driver or firmware. A
malicious Wireless Access Point might be able to use this to cause a
denial of service (memory corruption or crash) or for remote code
execution.

CVE-2019-17666

Nicholas Waisman reported that the rtlwifi wifi drivers did not
properly validate received P2P information, leading to a buffer
overflow. A malicious P2P peer could use this to cause a denial of
service (memory corruption or crash) or for remote code execution.

CVE-2019-18282

Jonathan Berger, Amit Klein, and Benny Pinkas discovered that the
generation of UDP/IPv6 flow labels used a weak hash function, 'jhash'.
This could enable tracking individual computers as they communicate
with different remote servers and from different networks. The
'siphash' function is now used instead.

CVE-2019-18683

Multiple race conditions were discovered in the vivid media driver,
used for testing Video4Linux2 (V4L2) applications, These race
conditions could result in a use-after-free. On a system where this
driver is loaded, a user with permission to access media devices could
use this to cause a denial of service (memory corruption or crash) or
possibly for privilege escalation.

CVE-2019-18809

Navid Emamdoost discovered a potential memory leak in the af9005 media
driver if the device fails to respond to a command. The security
impact of this is unclear.

CVE-2019-19037

It was discovered that the ext4 filesystem driver did not correctly
handle directories with holes (unallocated regions) in them. An
attacker able to mount arbitrary ext4 volumes could use this to cause
a denial of service (crash).

CVE-2019-19051

Navid Emamdoost discovered a potential memory leak in the i2400m wimax
driver if the software rfkill operation fails. The security impact of
this is unclear.

CVE-2019-19052

Navid Emamdoost discovered a potential memory leak in the gs_usb CAN
driver if the open (interface-up) operation fails. The security impact
of this is unclear.

CVE-2019-19056, CVE-2019-19057

Navid Emamdoost discovered potential memory leaks in the mwifiex wifi
driver if the probe operation fails. The security impact of this is
unclear.

CVE-2019-19062

Navid Emamdoost discovered a potential memory leak in the AF_ALG
subsystem if the CRYPTO_MSG_GETALG operation fails. A local user could
possibly use this to cause a denial of service (memory exhaustion).

CVE-2019-19066

Navid Emamdoost discovered a potential memory leak in the bfa SCSI
driver if the get_fc_host_stats operation fails. The security impact
of this is unclear.

CVE-2019-19068

Navid Emamdoost discovered a potential memory leak in the rtl8xxxu
wifi driver, in case it fails to submit an interrupt buffer to the
device. The security impact of this is unclear.

CVE-2019-19227

Dan Carpenter reported missing error checks in the Appletalk protocol
implementation that could lead to a NULL pointer dereference. The
security impact of this is unclear.

CVE-2019-19332

The syzkaller tool discovered a missing bounds check in the KVM
implementation for x86, which could lead to a heap buffer overflow. A
local user permitted to use KVM could use this to cause a denial of
service (memory corruption or crash) or possibly for privilege
escalation.

CVE-2019-19447

It was discovered that the ext4 filesystem driver did not safely
handle unlinking of an inode that, due to filesystem corruption,
already has a link count of 0. An attacker able to mount arbitrary
ext4 volumes could use this to cause a denial of service (memory
corruption or crash) or possibly for privilege escalation.

CVE-2019-19523

The syzkaller tool discovered a use-after-free bug in the adutux USB
driver. An attacker able to add and remove USB devices could use this
to cause a denial of service (memory corruption or crash) or possibly
for privilege escalation.

CVE-2019-19524

The syzkaller tool discovered a race condition in the ff-memless
library used by input drivers. An attacker able to add and remove USB
devices could use this to cause a denial of service (memory corruption
or crash) or possibly for privilege escalation.

CVE-2019-19525

The syzkaller tool discovered a use-after-free bug in the atusb driver
for IEEE 802.15.4 networking. An attacker able to add and remove USB
devices could possibly use this to cause a denial of service (memory
corruption or crash) or for privilege escalation.

CVE-2019-19527

The syzkaller tool discovered that the hiddev driver did not correctly
handle races between a task opening the device and disconnection of
the underlying hardware. A local user permitted to access hiddev
devices, and able to add and remove USB devices, could use this to
cause a denial of service (memory corruption or crash) or possibly for
privilege escalation.

CVE-2019-19530

The syzkaller tool discovered a potential use-after-free in the
cdc-acm network driver. An attacker able to add USB devices could use
this to cause a denial of service (memory corruption or crash) or
possibly for privilege escalation.

CVE-2019-19531

The syzkaller tool discovered a use-after-free bug in the yurex USB
driver. An attacker able to add and remove USB devices could use this
to cause a denial of service (memory corruption or crash) or possibly
for privilege escalation.

CVE-2019-19532

The syzkaller tool discovered a potential heap buffer overflow in the
hid-gaff input driver, which was also found to exist in many other
input drivers. An attacker able to add USB devices could use this to
cause a denial of service (memory corruption or crash) or possibly for
privilege escalation.

CVE-2019-19533

The syzkaller tool discovered that the ttusb-dec media driver was
missing initialisation of a structure, which could leak sensitive
information from kernel memory.

CVE-2019-19534, CVE-2019-19535, CVE-2019-19536

The syzkaller tool discovered that the peak_usb CAN driver was missing
initialisation of some structures, which could leak sensitive
information from kernel memory.

CVE-2019-19537

The syzkaller tool discovered race conditions in the USB stack,
involving character device registration. An attacker able to add USB
devices could use this to cause a denial of service (memory corruption
or crash) or possibly for privilege escalation.

CVE-2019-19767

The syzkaller tool discovered that crafted ext4 volumes could trigger
a buffer overflow in the ext4 filesystem driver. An attacker able to
mount such a volume could use this to cause a denial of service
(memory corruption or crash) or possibly for privilege escalation.

CVE-2019-19947

It was discovered that the kvaser_usb CAN driver was missing
initialisation of some structures, which could leak sensitive
information from kernel memory.

CVE-2019-19965

Gao Chuan reported a race condition in the libsas library used by SCSI
host drivers, which could lead to a NULL pointer dereference. An
attacker able to add and remove SCSI devices could use this to cause a
denial of service (BUG/oops).

CVE-2019-20096

The Hulk Robot tool discovered a potential memory leak in the DCCP
protocol implementation. This may be exploitable by local users, or by
remote attackers if the system uses DCCP, to cause a denial of service
(out of memory).

For Debian 8 'Jessie', these problems have been fixed in version
4.9.210-1~deb8u1. This update additionally fixes Debian bugs #869511
and 945023; and includes many more bug fixes from stable updates
4.9.190-4.9.210 inclusive.

We recommend that you upgrade your linux-4.9 packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  # https://en.wikipedia.org/wiki/List_of_Intel_graphics_processing_units#Gen9
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?09b1ea0a"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/linux-4.9"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Android Binder Use-After-Free Exploit');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-compiler-gcc-4.9-arm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-doc-4.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-686");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-686-pae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-all");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-all-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-all-armel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-all-armhf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-all-i386");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-armmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-armmp-lpae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-common-rt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-marvell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-rt-686-pae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-4.9.0-0.bpo.7-rt-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-686");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-686-pae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-686-pae-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-amd64-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-armmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-armmp-lpae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-marvell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-rt-686-pae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-rt-686-pae-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-rt-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-4.9.0-0.bpo.7-rt-amd64-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-kbuild-4.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-manual-4.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-perf-4.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-source-4.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-support-4.9.0-0.bpo.7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/07/03");
  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:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"8.0", prefix:"linux-compiler-gcc-4.9-arm", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-doc-4.9", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-686", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-686-pae", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-all", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-all-amd64", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-all-armel", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-all-armhf", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-all-i386", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-amd64", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-armmp", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-armmp-lpae", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-common", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-common-rt", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-marvell", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-rt-686-pae", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-4.9.0-0.bpo.7-rt-amd64", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-686", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-686-pae", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-686-pae-dbg", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-amd64", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-amd64-dbg", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-armmp", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-armmp-lpae", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-marvell", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-rt-686-pae", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-rt-686-pae-dbg", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-rt-amd64", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-4.9.0-0.bpo.7-rt-amd64-dbg", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-kbuild-4.9", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-manual-4.9", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-perf-4.9", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-source-4.9", reference:"4.9.210-1~deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"linux-support-4.9.0-0.bpo.7", reference:"4.9.210-1~deb8u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

References