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CVE-2021-20233

grub2: Heap out-of-bounds write due to miscalculation of space required for quoting

A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Gnu Netapp and 1 more
Products
Fedora Grub2 Ontap Select Deploy Administration Utility and 9 more
CVE-2021-20225

grub2: Heap out-of-bounds write in short form option parser

A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 6.7 Medium EPSS 1.0% KEV · Not listed
Vendors
Fedoraproject Gnu Netapp and 1 more
Products
Fedora Grub2 Ontap Select Deploy Administration Utility and 9 more
CVE-2020-36331

libwebp: out-of-bounds read in ChunkAssignData() in mux/muxinternal.c

A flaw was found in libwebp in versions before 1.0.1. An out-of-bounds read was found in function ChunkAssignData. The highest threat from this vulnerability is to data confidentiality and to the service availability.

CVSS 3.1 · 9.1 Critical EPSS 2.3% KEV · Not listed
Vendors
Apple Debian Netapp and 2 more
Products
Ipados Iphone Os Debian Linux and 3 more
CVE-2020-36330

libwebp: out-of-bounds read in ChunkVerifyAndAssign() in mux/muxread.c

A flaw was found in libwebp in versions before 1.0.1. An out-of-bounds read was found in function ChunkVerifyAndAssign. The highest threat from this vulnerability is to data confidentiality and to the service availability.

CVSS 3.1 · 9.1 Critical EPSS 2.2% KEV · Not listed
Vendors
Apple Debian Netapp and 2 more
Products
Ipados Iphone Os Debian Linux and 3 more
CVE-2020-36329

libwebp: use-after-free in EmitFancyRGB() in dec/io_dec.c

A flaw was found in libwebp in versions before 1.0.1. A use-after-free was found due to a thread being killed too early. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 9.8 Critical EPSS 2.3% KEV · Not listed
Vendors
Apple Debian Netapp and 2 more
Products
Ipados Iphone Os Debian Linux and 5 more
CVE-2020-36328

libwebp: heap-based buffer overflow in WebPDecode*Into functions

A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow in function WebPDecodeRGBInto is possible due to an invalid check for buffer size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 9.8 Critical EPSS 2.7% KEV · Not listed
Vendors
Apple Debian Netapp and 2 more
Products
Ipados Iphone Os Debian Linux and 5 more
CVE-2020-35524

libtiff: Heap-based buffer overflow in TIFF2PDF tool

A heap-based buffer overflow flaw was found in libtiff in the handling of TIFF images in libtiff's TIFF2PDF tool. A specially crafted TIFF file can lead to arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS 3.1 · 7.8 High EPSS 1.9% KEV · Not listed
Vendors
Debian Fedoraproject Libtiff and 2 more
Products
Debian Linux Fedora Libtiff and 2 more
CVE-2020-35523

libtiff: Integer overflow in tif_getimage.c

An integer overflow flaw was found in libtiff that exists in the tif_getimage.c file. This flaw allows an attacker to inject and execute arbitrary code when a user opens a crafted TIFF file. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS 3.1 · 7.8 High EPSS 1.9% KEV · Not listed
Vendors
Debian Libtiff Netapp and 1 more
Products
Debian Linux Libtiff Ontap Select Deploy Administration Utility and 1 more
CVE-2020-35448

binutils: Heap-based buffer overflow in bfd_getl_signed_32() in libbfd.c because sh_entsize is not validated in _bfd_elf_slurp_secondary_reloc_section() in elf.c

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.35.1. A heap-based buffer over-read can occur in bfd_getl_signed_32 in libbfd.c because sh_entsize is not validated in _bfd_elf_slurp_secondary_reloc_section in elf.c.

CVSS 3.1 · 3.3 Low EPSS 1.2% KEV · Not listed
Vendors
Gnu Netapp Redhat
Products
Binutils Ontap Select Deploy Administration Utility Enterprise Linux
CVE-2020-27779

grub2: cutmem command allows privileged user to remove memory regions when Secure Boot is enabled

A flaw was found in grub2 in versions prior to 2.06. The cutmem command does not honor secure boot locking allowing an privileged attacker to remove address ranges from memory creating an opportunity to circumvent SecureBoot protections after proper triage about grub's memory layout. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Gnu Netapp and 1 more
Products
Fedora Grub2 Ontap Select Deploy Administration Utility and 9 more
CVE-2020-27749

grub2: Stack buffer overflow in grub_parser_split_cmdline()

A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload, it is possible to overflow the stack buffer, corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Gnu Netapp and 1 more
Products
Fedora Grub2 Ontap Select Deploy Administration Utility and 9 more
CVE-2020-25647

grub2: Out-of-bounds write in grub_usb_device_initialize()

A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 7.6 High EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Gnu Netapp and 1 more
Products
Fedora Grub2 Ontap Select Deploy Administration Utility and 9 more
CVE-2020-25632

grub2: Use-after-free in rmmod command

A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 8.2 High EPSS 1.2% KEV · Not listed
Vendors
Fedoraproject Gnu Netapp and 1 more
Products
Fedora Grub2 Ontap Select Deploy Administration Utility and 9 more
CVE-2020-16599

binutils: Null Pointer Dereference in _bfd_elf_get_symbol_version_string could result in DoS

A Null Pointer Dereference vulnerability exists in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.35, in _bfd_elf_get_symbol_version_string, as demonstrated in nm-new, that can cause a denial of service via a crafted file.

CVSS 3.1 · 5.5 Medium EPSS 1.1% KEV · Not listed
Vendors
Gnu Netapp
Products
Binutils Cloud Backup Hci Management Node and 2 more
CVE-2020-16593

binutils: Null Pointer Dereference in scan_unit_for_symbols could result in DoS

A Null Pointer Dereference vulnerability exists in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.35, in scan_unit_for_symbols, as demonstrated in addr2line, that can cause a denial of service via a crafted file.

CVSS 3.1 · 5.5 Medium EPSS 1.2% KEV · Not listed
Vendors
Gnu Netapp
Products
Binutils Cloud Backup Ontap Select Deploy Administration Utility and 1 more