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nessusThis script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.NEWSTART_CGSL_NS-SA-2021-0139_GRUB2.NASL
HistoryOct 27, 2021 - 12:00 a.m.

NewStart CGSL CORE 5.05 / MAIN 5.05 : grub2 Multiple Vulnerabilities (NS-SA-2021-0139)

2021-10-2700:00:00
This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
32
newstart cgsl
core 5.05
main 5.05
grub2
vulnerabilities
hijack
secure boot
buffer overflow
arbitrary code execution
data confidentiality
integrity
system availability
memory allocator
arithmetic overflows
squashfs filesystems
symbolic link
heap-based buffer overflow
symlink
ext filesystems
kernel signature validation
race condition
use-after-free vulnerability
secure boot restriction bypass
integer overflows
efilinux

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

AI Score

8.2

Confidence

High

EPSS

0.002

Percentile

62.3%

JSON

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has grub2 packages installed that are affected by multiple vulnerabilities:

  • A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-10713)

  • In grub2 versions before 2.06 the grub memory allocator doesn’t check for possible arithmetic overflows on the requested allocation size. This leads the function to return invalid memory allocations which can be further used to cause possible integrity, confidentiality and availability impacts during the boot process. (CVE-2020-14308)

  • There’s an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data. (CVE-2020-14309)

  • There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn’t verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow. (CVE-2020-14310)

  • There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow. (CVE-2020-14311)

  • GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions. (CVE-2020-15705)

  • GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions. (CVE-2020-15706)

  • Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions. (CVE-2020-15707)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2021-0139. The text
# itself is copyright (C) ZTE, Inc.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(154470);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/27");

  script_cve_id(
    "CVE-2020-10713",
    "CVE-2020-14308",
    "CVE-2020-14309",
    "CVE-2020-14310",
    "CVE-2020-14311",
    "CVE-2020-15705",
    "CVE-2020-15706",
    "CVE-2020-15707"
  );
  script_xref(name:"IAVA", value:"2020-A-0349");
  script_xref(name:"CEA-ID", value:"CEA-2020-0061");

  script_name(english:"NewStart CGSL CORE 5.05 / MAIN 5.05 : grub2 Multiple Vulnerabilities (NS-SA-2021-0139)");

  script_set_attribute(attribute:"synopsis", value:
"The remote NewStart CGSL host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has grub2 packages installed that are affected by
multiple vulnerabilities:

  - A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper
    the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to
    load an untrusted or modified kernel, an attacker would first need to establish access to the system such
    as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a
    networked system with root access. With this access, an attacker could then craft a string to cause a
    buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The
    highest threat from this vulnerability is to data confidentiality and integrity as well as system
    availability. (CVE-2020-10713)

  - In grub2 versions before 2.06 the grub memory allocator doesn't check for possible arithmetic overflows on
    the requested allocation size. This leads the function to return invalid memory allocations which can be
    further used to cause possible integrity, confidentiality and availability impacts during the boot
    process. (CVE-2020-14308)

  - There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a
    symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow
    leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled
    data. (CVE-2020-14309)

  - There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font
    name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer
    allocation to read the value from the font value. An attacker may leverage that by crafting a malicious
    font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow,
    zero-sized allocation and further heap-based buffer overflow. (CVE-2020-14310)

  - There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem
    containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a
    zero-sized memory allocation with subsequent heap-based buffer overflow. (CVE-2020-14311)

  - GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be
    bypassed. This only affects systems where the kernel signing certificate has been imported directly into
    the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects
    GRUB2 version 2.04 and prior versions. (CVE-2020-15705)

  - GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability
    which can be triggered by redefining a function whilst the same function is already executing, leading to
    arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and
    prior versions. (CVE-2020-15706)

  - Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux
    component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2
    upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number
    of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files
    on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot
    restrictions. This issue affects GRUB2 version 2.04 and prior versions. (CVE-2020-15707)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/notice/NS-SA-2021-0139");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-10713");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-14308");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-14309");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-14310");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-14311");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-15705");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-15706");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-15707");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL grub2 packages. Note that updated packages may not be available yet. Please contact ZTE for
more information.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-14309");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-10713");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/09/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/10/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-efi-ia32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-efi-ia32-cdboot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-efi-ia32-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-efi-x64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-efi-x64-cdboot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-efi-x64-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-i386-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-lang");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-pc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-pc-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-tools-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:grub2-tools-minimal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-efi-ia32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-efi-ia32-cdboot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-efi-ia32-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-efi-x64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-efi-x64-cdboot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-efi-x64-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-i386-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-pc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-pc-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-tools-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:grub2-tools-minimal");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_core:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:5");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"NewStart CGSL Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");

  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);

var release = get_kb_item('Host/ZTE-CGSL/release');
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');

if (release !~ "CGSL CORE 5.05" &&
    release !~ "CGSL MAIN 5.05")
  audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.05 / NewStart CGSL MAIN 5.05');

if (!get_kb_item('Host/ZTE-CGSL/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var 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, 'NewStart Carrier Grade Server Linux', cpu);

var flag = 0;

var pkgs = {
  'CGSL CORE 5.05': [
    'grub2-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-common-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-debuginfo-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-efi-ia32-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-efi-ia32-cdboot-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-efi-ia32-modules-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-efi-x64-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-efi-x64-cdboot-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-efi-x64-modules-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-i386-modules-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-lang-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-pc-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-pc-modules-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-tools-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-tools-extra-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite',
    'grub2-tools-minimal-2.02-0.86.el7.centos.cgslv5_5.0.6.g4a36c9e.lite'
  ],
  'CGSL MAIN 5.05': [
    'grub2-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-common-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-debuginfo-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-efi-ia32-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-efi-ia32-cdboot-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-efi-ia32-modules-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-efi-x64-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-efi-x64-cdboot-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-efi-x64-modules-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-i386-modules-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-pc-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-pc-modules-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-tools-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-tools-extra-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8',
    'grub2-tools-minimal-2.02-0.86.el7.centos.cgslv5_5.0.7.g62910b8'
  ]
};
var pkg_list = pkgs[release];

foreach (pkg in pkg_list)
  if (rpm_check(release:'ZTE ' + release, reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'grub2');
}

References

Related

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nessus
nessus
CentOS 8 : grub2 (CESA-2020:3216)
2021-02-01 00:00:00
RHEL 8 : grub2 (RHSA-2020:3223)
2020-07-30 00:00:00
Photon OS 2.0: Grub2 PHSA-2020-2.0-0267
2020-08-01 00:00:00
fedora
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[SECURITY] Fedora 31 Update: grub2-2.02-110.fc31
2020-09-27 01:05:37
[SECURITY] Fedora 32 Update: grub2-2.04-22.fc32
2020-09-14 13:26:52
redhat
redhat
(RHSA-2020:3275) Moderate: grub2 security and bug fix update
2020-08-03 10:37:39
(RHSA-2020:3271) Moderate: grub2 security and bug fix update
2020-08-03 10:36:06
(RHSA-2020:3227) Moderate: grub2 security update
2020-07-29 19:56:15
photon
photon
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2020-2.0-0267
2020-07-30 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2020-1.0-0311
2020-07-30 00:00:00
Important Photon OS Security Update - PHSA-2020-0120
2020-07-23 00:00:00
qualysblog
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GRUB2 Boothole Buffer Overflow Vulnerability (CVE-2020-10713) – Automatically Discover, Prioritize and Remediate Using Qualys VMDR®
2020-08-03 21:35:38
openvas
openvas
CentOS: Security Advisory for shim-unsigned-ia32 (CESA-2020:3217)
2020-07-30 00:00:00
Fedora: Security Advisory for grub2 (FEDORA-2020-41e57d7649)
2020-09-15 00:00:00
Ubuntu: Security Advisory (USN-4432-2)
2020-08-05 00:00:00
centos
centos
grub2, mokutil, shim security update
2020-07-30 00:08:50
oraclelinux
oraclelinux
grub2 security update
2020-07-29 00:00:00
grub2 security update
2020-07-29 00:00:00
grub2 security update
2020-07-29 00:00:00
ubuntu
ubuntu
GRUB 2 vulnerabilities
2020-07-29 00:00:00
GRUB2 regression
2020-08-04 00:00:00
debian
debian
[SECURITY] [DSA 4735-1] grub2 security update
2020-07-29 16:59:52
f5
f5
K48187630 : Multiple grub2 vulnerabilities
2021-03-18 00:00:00
K42232641 : GRUB2 vulnerability CVE-2020-10713
2020-08-07 00:00:00
suse
suse
Security update for grub2 (important)
2020-08-08 00:00:00
Security update for grub2 (important)
2020-08-08 00:00:00
Security update for grub2 (important)
2020-08-29 00:00:00
osv
osv
grub2 - security update
2020-07-29 00:00:00
grub2-2.06-7.1 on GA media
2024-06-15 00:00:00
CVE-2020-14311
2020-07-31 22:15:11
mageia
mageia
Updated grub2 packages fix security vulnerabilities
2021-07-09 01:43:19
gentoo
gentoo
GRUB: Multiple vulnerabilities
2021-04-30 00:00:00
ibm
ibm
Security Bulletin: IBM QRadar Network Packet Capture is vulnerable to Using Components with Known Vulnerabilities
2020-10-30 16:18:45
Security Bulletin: IBM Security Guardium is affected by multiple vulnerabilities
2023-12-19 17:14:04
mscve
mscve
Microsoft Guidance for Addressing Security Feature Bypass in GRUB
2020-07-29 07:00:00
redos
redos
ROS-20220920-01
2022-09-20 00:00:00
hp
hp
HPSBHF03678 rev. 2 - GRUB2 Bootloader Arbitrary Code Execution
2020-07-25 00:00:00
redhatcve
redhatcve
CVE-2020-14309
2020-07-29 17:06:12
CVE-2020-15707
2020-07-29 17:06:20
CVE-2020-14310
2020-07-29 17:06:12
ics
ics
Hitachi Energy APM Edge (Update A)
2022-10-18 12:00:00
cbl_mariner
cbl_mariner
CVE-2020-14310 affecting package grub2 for versions less than 2.06~rc1-7
2022-04-26 20:17:11
CVE-2020-14308 affecting package grub2 2.06~rc1-10
2021-05-06 23:56:52
CVE-2020-14308 affecting package grub2 for versions less than 2.06~rc1-7
2022-04-26 20:17:11
prion
prion
Heap overflow
2020-07-31 22:15:00
Buffer overflow
2020-07-29 20:15:00
Heap overflow
2020-07-31 22:15:00
cve
cve
CVE-2020-14311
2020-07-31 22:15:11
CVE-2020-14310
2020-07-31 22:15:11
CVE-2020-15707
2020-07-29 18:15:14
debiancve
debiancve
CVE-2020-14311
2020-07-31 22:15:11
CVE-2020-14310
2020-07-31 22:15:11
CVE-2020-14309
2020-07-30 13:15:10
nvd
nvd
CVE-2020-14309
2020-07-30 13:15:10
CVE-2020-14311
2020-07-31 22:15:11
CVE-2020-14308
2020-07-29 20:15:12
alpinelinux
alpinelinux
CVE-2020-14309
2020-07-30 13:15:10
CVE-2020-15707
2020-07-29 18:15:14
CVE-2020-14310
2020-07-31 22:15:11
cvelist
cvelist
CVE-2020-14310
2020-07-31 20:55:55
CVE-2020-15707 GRUB2 contained integer overflows when handling the initrd command, leading to a heap-based buffer overflow.
2020-07-29 17:45:34
CVE-2020-14311
2020-07-31 20:56:30
ubuntucve
ubuntucve
CVE-2020-15707
2020-07-29 00:00:00
CVE-2020-14310
2020-07-29 00:00:00
CVE-2020-14308
2020-07-29 00:00:00
veracode
veracode
Denial Of Service (DoS)
2020-07-30 02:02:34
Denial Of Service (DoS)
2020-07-30 02:02:33
Denial Of Service (DoS)
2020-07-30 02:02:34
checkpoint_security
checkpoint_security
Check Point response to CVE-2020-10713 (GRUB2 bootloader is vulnerable to buffer overflow)
2020-08-02 22:52:23
lenovo
lenovo
GRUB2 Vulnerability – AKA
2020-07-30 15:15:08
cert
cert
GRUB2 bootloader is vulnerable to buffer overflow
2020-07-29 00:00:00

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

AI Score

8.2

Confidence

High

EPSS

0.002

Percentile

62.3%

JSON
Related for NEWSTART_CGSL_NS-SA-2021-0139_GRUB2.NASL
nessus47fedora2redhat9photon6qualysblog1openvas34centos1oraclelinux3ubuntu2debian1f52suse4osv8mageia1gentoo1ibm2mscve1redos1hp1redhatcve7ics1cbl_mariner12prion5cve6debiancve7nvd8alpinelinux7cvelist5ubuntucve5veracode6checkpoint_security1lenovo1cert1