Vulnerabilities > CVE-2020-12768 - Memory Leak vulnerability in multiple products

047910
CVSS 5.5 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
local
low complexity
linux
canonical
debian
CWE-401
nessus
NVD
Published: 2020-05-09
Updated: 2024-11-21

Summary

An issue was discovered in the Linux kernel before 5.6. svm_cpu_uninit in arch/x86/kvm/svm.c has a memory leak, aka CID-d80b64ff297e. NOTE: third parties dispute this issue because it's a one-time leak at the boot, the size is negligible, and it can't be triggered at will

Vulnerable Configurations

Part Description Count
OS
Linux
4508
OS
Canonical
3
OS
Debian
1

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2020-5715.NASL
    descriptionThe remote Oracle Linux host is missing a security update for the Unbreakable Enterprise kernel package(s).
    last seen2020-06-13
    modified2020-06-10
    plugin id137291
    published2020-06-10
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/137291
    titleOracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5715)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from Oracle Linux
# Security Advisory ELSA-2020-5715.
#

include("compat.inc");

if (description)
{
  script_id(137291);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/12");

  script_cve_id("CVE-2019-11599", "CVE-2019-12819", "CVE-2019-14896", "CVE-2019-14897", "CVE-2019-15505", "CVE-2019-18282", "CVE-2019-19045", "CVE-2019-19056", "CVE-2019-19057", "CVE-2019-19058", "CVE-2019-19524", "CVE-2019-19537", "CVE-2019-19767", "CVE-2019-20636", "CVE-2019-9500", "CVE-2019-9503", "CVE-2020-0543", "CVE-2020-11608", "CVE-2020-11609", "CVE-2020-11668", "CVE-2020-12768");

  script_name(english:"Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5715)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description",
    value:
"The remote Oracle Linux host is missing a security update for
the Unbreakable Enterprise kernel package(s)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2020-June/010022.html"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Update the affected unbreakable enterprise 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:"exploit_available", value:"true");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/06/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/06/10");
  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:"Oracle Linux Local Security Checks");

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

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 7", "Oracle Linux " + os_ver);

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

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

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2019-11599", "CVE-2019-12819", "CVE-2019-14896", "CVE-2019-14897", "CVE-2019-15505", "CVE-2019-18282", "CVE-2019-19045", "CVE-2019-19056", "CVE-2019-19057", "CVE-2019-19058", "CVE-2019-19524", "CVE-2019-19537", "CVE-2019-19767", "CVE-2019-20636", "CVE-2019-9500", "CVE-2019-9503", "CVE-2020-0543", "CVE-2020-11608", "CVE-2020-11609", "CVE-2020-11668", "CVE-2020-12768");  
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2020-5715");
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

kernel_major_minor = get_kb_item("Host/uname/major_minor");
if (empty_or_null(kernel_major_minor)) exit(1, "Unable to determine kernel major-minor level.");
expected_kernel_major_minor = "4.14";
if (kernel_major_minor != expected_kernel_major_minor)
  audit(AUDIT_OS_NOT, "running kernel level " + expected_kernel_major_minor + ", it is running kernel level " + kernel_major_minor);

flag = 0;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-4.14.35") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-4.14.35-1902.303.4.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-debug-4.14.35") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-debug-4.14.35-1902.303.4.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-debug-devel-4.14.35") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-debug-devel-4.14.35-1902.303.4.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-devel-4.14.35") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-devel-4.14.35-1902.303.4.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-doc-4.14.35") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-doc-4.14.35-1902.303.4.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-tools-4.14.35") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-tools-4.14.35-1902.303.4.1.el7uek")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "affected kernel");
}
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2020-5714.NASL
    descriptionDescription of changes: [5.4.17-2011.3.2.1.el8uek] - x86/speculation: Add Ivy Bridge to affected list (Josh Poimboeuf) [Orabug: 31352779] {CVE-2020-0543} - x86/speculation: Add SRBDS vulnerability and mitigation documentation (Mark Gross) [Orabug: 31352779] {CVE-2020-0543} - x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation (Mark Gross) [Orabug: 31352779] {CVE-2020-0543} - x86/cpu: Add
    last seen2020-06-13
    modified2020-06-10
    plugin id137290
    published2020-06-10
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/137290
    titleOracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5714)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2020-5714.
#

include("compat.inc");

if (description)
{
  script_id(137290);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/12");

  script_cve_id("CVE-2019-19377", "CVE-2020-0543", "CVE-2020-12464", "CVE-2020-12465", "CVE-2020-12653", "CVE-2020-12654", "CVE-2020-12657", "CVE-2020-12659", "CVE-2020-12768");

  script_name(english:"Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5714)");
  script_summary(english:"Checks rpm output for the updated packages");

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

[5.4.17-2011.3.2.1.el8uek]
- x86/speculation: Add Ivy Bridge to affected list (Josh Poimboeuf)  [Orabug: 31352779]  {CVE-2020-0543}
- x86/speculation: Add SRBDS vulnerability and mitigation documentation (Mark Gross)  [Orabug: 31352779]  {CVE-2020-0543}
- x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation (Mark Gross)  [Orabug: 31352779]  {CVE-2020-0543}
- x86/cpu: Add 'table' argument to cpu_matches() (Mark Gross)  [Orabug: 31352779]  {CVE-2020-0543}
- x86/cpu: Add a steppings field to struct x86_cpu_id (Mark Gross)  [Orabug: 31352779]  {CVE-2020-0543}
- x86/speculation/spectre_v2: Exclude Zhaoxin CPUs from SPECTRE_V2 (Tony W Wang-oc)  [Orabug: 31352779]  {CVE-2020-0543}

[5.4.17-2011.3.2.el8uek]
- USB: core: Fix free-while-in-use bug in the USB S-Glibrary (Alan Stern)  [Orabug: 31350962]  {CVE-2020-12464}
- mt76: fix array overflow on receiving too many fragments for a packet (Felix Fietkau)  [Orabug: 31350952]  {CVE-2020-12465}
- mwifiex: Fix possible buffer overflows in mwifiex_cmd_append_vsie_tlv() (Qing Xu)  [Orabug: 31350929]  {CVE-2020-12653}
- block, bfq: fix use-after-free in bfq_idle_slice_timer_body (Zhiqiang Liu)  [Orabug: 31350910]  {CVE-2020-12657}
- xsk: Add missing check on user-supplied headroom size (Magnus Karlsson)  [Orabug: 31350732]  {CVE-2020-12659}
- mwifiex: Fix possible buffer overflows in mwifiex_ret_wmm_get_status() (Qing Xu)  [Orabug: 31350513]  {CVE-2020-12654}
- xen/manage: enable C_A_D to force reboot (Dongli Zhang)  [Orabug: 31387411]
- KVM: x86: Fixes posted interrupt check for IRQs delivery modes (Suravee Suthikulpanit)  [Orabug: 31316437]
- Revert 'Revert 'nvme_fc: add module to ops template to allow module references'' (James Smart)  [Orabug: 31377552]
- uek-rpm: Move grub boot menu update to posttrans stage. (Somasundaram Krishnasamy)  [Orabug: 31358097]
- KVM: SVM: Fix potential memory leak in svm_cpu_init() (Miaohe Lin)  [Orabug: 31350455]  {CVE-2020-12768}

[5.4.17-2011.3.1.el8uek]
- intel_idle: Use ACPI _CST for processor models without C-state tables (Rafael J. Wysocki)  [Orabug: 31332120]
- ACPI: processor: Export acpi_processor_evaluate_cst() (Rafael J. Wysocki)  [Orabug: 31332120]
- ACPI: processor: Clean up acpi_processor_evaluate_cst() (Rafael J. Wysocki)  [Orabug: 31332120]
- ACPI: processor: Introduce acpi_processor_evaluate_cst() (Rafael J. Wysocki)  [Orabug: 31332120]
- ACPI: processor: Export function to claim _CST control (Rafael J. Wysocki)  [Orabug: 31332120]
- rds: ib: Fix dysfunctional long address resolve timeout (H&aring kon Bugge)  [Orabug: 31302704]
- KVM: x86: Revert 'KVM: X86: Fix fpu state crash in kvm guest' (Sean Christopherson)  [Orabug: 31333676]
- KVM: x86: Ensure guest's FPU state is loaded when accessing for emulation (Sean Christopherson)  [Orabug: 31333676]
- KVM: x86: Handle TIF_NEED_FPU_LOAD in kvm_{load,put}_guest_fpu() (Sean Christopherson)  [Orabug: 31333676]
- net: dsa: Do not leave DSA master with NULL netdev_ops (Florian Fainelli)  [Orabug: 30456791]
- Revert 'dsa: disable module unloading for ARM64' (Allen Pais)  [Orabug: 30456791]

[5.4.17-2011.3.0.el8uek]
- NFSv4.0: nfs4_do_fsinfo() should not do implicit lease renewals (Robert Milkowski)  [Orabug: 31304406]
- NFSv4: try lease recovery on NFS4ERR_EXPIRED (Robert Milkowski)  [Orabug: 31304406]
- btrfs: Don't submit any btree write bio if the fs has errors (Qu Wenruo)  [Orabug: 31265336]  {CVE-2019-19377} {CVE-2019-19377}"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2020-June/010019.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2020-June/010021.html"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Update the affected unbreakable enterprise kernel packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:H/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:"cvss_score_source", value:"CVE-2020-12659");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/11/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/06/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/06/10");
  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:"Oracle Linux Local Security Checks");

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

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^(7|8)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 7 / 8", "Oracle Linux " + os_ver);

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

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

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2019-19377", "CVE-2020-0543", "CVE-2020-12464", "CVE-2020-12465", "CVE-2020-12653", "CVE-2020-12654", "CVE-2020-12657", "CVE-2020-12659", "CVE-2020-12768");  
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2020-5714");
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

kernel_major_minor = get_kb_item("Host/uname/major_minor");
if (empty_or_null(kernel_major_minor)) exit(1, "Unable to determine kernel major-minor level.");
expected_kernel_major_minor = "5.4";
if (kernel_major_minor != expected_kernel_major_minor)
  audit(AUDIT_OS_NOT, "running kernel level " + expected_kernel_major_minor + ", it is running kernel level " + kernel_major_minor);

flag = 0;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-5.4.17") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-5.4.17-2011.3.2.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-debug-5.4.17") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-debug-5.4.17-2011.3.2.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-debug-devel-5.4.17") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-debug-devel-5.4.17-2011.3.2.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-devel-5.4.17") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-devel-5.4.17-2011.3.2.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-doc-5.4.17") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-doc-5.4.17-2011.3.2.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-tools-5.4.17") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-tools-5.4.17-2011.3.2.1.el7uek")) flag++;

if (rpm_exists(release:"EL8", rpm:"kernel-uek-5.4.17") && rpm_check(release:"EL8", cpu:"x86_64", reference:"kernel-uek-5.4.17-2011.3.2.1.el8uek")) flag++;
if (rpm_exists(release:"EL8", rpm:"kernel-uek-debug-5.4.17") && rpm_check(release:"EL8", cpu:"x86_64", reference:"kernel-uek-debug-5.4.17-2011.3.2.1.el8uek")) flag++;
if (rpm_exists(release:"EL8", rpm:"kernel-uek-debug-devel-5.4.17") && rpm_check(release:"EL8", cpu:"x86_64", reference:"kernel-uek-debug-devel-5.4.17-2011.3.2.1.el8uek")) flag++;
if (rpm_exists(release:"EL8", rpm:"kernel-uek-devel-5.4.17") && rpm_check(release:"EL8", cpu:"x86_64", reference:"kernel-uek-devel-5.4.17-2011.3.2.1.el8uek")) flag++;
if (rpm_exists(release:"EL8", rpm:"kernel-uek-doc-5.4.17") && rpm_check(release:"EL8", cpu:"x86_64", reference:"kernel-uek-doc-5.4.17-2011.3.2.1.el8uek")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "affected kernel");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-4699.NASL
    descriptionSeveral vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. - CVE-2019-3016 It was discovered that the KVM implementation for x86 did not always perform TLB flushes when needed, if the paravirtualised TLB flush feature was enabled. This could lead to disclosure of sensitive information within a guest VM. - CVE-2019-19462 The syzkaller tool found a missing error check in the
    last seen2020-06-12
    modified2020-06-11
    plugin id137341
    published2020-06-11
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/137341
    titleDebian DSA-4699-1 : linux - security update

References