rpm package
suse/grub2&distro=SUSE Linux Enterprise Server 12 SP5
pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5
Vulnerabilities (25)
| CVE | Sev | CVSS | KEV | Affected versions | Fixed in | Published | Description |
|---|---|---|---|---|---|---|---|
| CVE-2023-4692 | — | < 2.02-169.1 | 2.02-169.1 | Oct 25, 2023 | An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap me | ||
| CVE-2023-4693 | — | < 2.02-169.1 | 2.02-169.1 | Oct 25, 2023 | An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI v | ||
| CVE-2022-28736 | — | < 2.02-143.2 | 2.02-143.2 | Jul 20, 2023 | There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerabili | ||
| CVE-2022-28734 | — | < 2.02-143.2 | 2.02-143.2 | Jul 20, 2023 | Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buf | ||
| CVE-2022-28733 | — | < 2.02-143.2 | 2.02-143.2 | Jul 20, 2023 | Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number whi | ||
| CVE-2022-3775 | Hig | 7.1 | < 2.02-153.1 | 2.02-153.1 | Dec 19, 2022 | When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to mem | |
| CVE-2022-2601 | Hig | 8.6 | < 2.02-153.1 | 2.02-153.1 | Dec 14, 2022 | A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bound | |
| CVE-2021-3697 | — | < 2.02-143.2 | 2.02-143.2 | Jul 6, 2022 | A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. | ||
| CVE-2021-3696 | — | < 2.02-143.2 | 2.02-143.2 | Jul 6, 2022 | A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and | ||
| CVE-2021-3695 | — | < 2.02-143.2 | 2.02-143.2 | Jul 6, 2022 | A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area. An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be expl | ||
| CVE-2021-20233 | — | < 2.02-12.47.1 | 2.02-12.47.1 | Mar 3, 2021 | 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 c | ||
| CVE-2021-20225 | — | < 2.02-12.47.1 | 2.02-12.47.1 | Mar 3, 2021 | 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 con | ||
| CVE-2020-25632 | — | < 2.02-12.47.1 | 2.02-12.47.1 | Mar 3, 2021 | 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 | ||
| CVE-2020-25647 | — | < 2.02-12.47.1 | 2.02-12.47.1 | Mar 3, 2021 | 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 arbitrar | ||
| CVE-2020-14372 | — | < 2.02-12.47.1 | 2.02-12.47.1 | Mar 3, 2021 | A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the L | ||
| CVE-2020-27749 | — | < 2.02-12.47.1 | 2.02-12.47.1 | Mar 3, 2021 | 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 c | ||
| CVE-2020-27779 | — | < 2.02-12.47.1 | 2.02-12.47.1 | Mar 3, 2021 | 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 lay | ||
| CVE-2020-14311 | — | < 2.02-12.31.1 | 2.02-12.31.1 | Jul 31, 2020 | 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-2020-14310 | — | < 2.02-12.31.1 | 2.02-12.31.1 | Jul 31, 2020 | 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 t | ||
| CVE-2020-10713 | — | < 2.02-12.31.1 | 2.02-12.31.1 | Jul 30, 2020 | 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 |
- CVE-2023-4692Oct 25, 2023affected < 2.02-169.1fixed 2.02-169.1
An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap me
- CVE-2023-4693Oct 25, 2023affected < 2.02-169.1fixed 2.02-169.1
An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI v
- CVE-2022-28736Jul 20, 2023affected < 2.02-143.2fixed 2.02-143.2
There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerabili
- CVE-2022-28734Jul 20, 2023affected < 2.02-143.2fixed 2.02-143.2
Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buf
- CVE-2022-28733Jul 20, 2023affected < 2.02-143.2fixed 2.02-143.2
Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number whi
- affected < 2.02-153.1fixed 2.02-153.1
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to mem
- affected < 2.02-153.1fixed 2.02-153.1
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bound
- CVE-2021-3697Jul 6, 2022affected < 2.02-143.2fixed 2.02-143.2
A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload.
- CVE-2021-3696Jul 6, 2022affected < 2.02-143.2fixed 2.02-143.2
A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and
- CVE-2021-3695Jul 6, 2022affected < 2.02-143.2fixed 2.02-143.2
A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area. An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be expl
- CVE-2021-20233Mar 3, 2021affected < 2.02-12.47.1fixed 2.02-12.47.1
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 c
- CVE-2021-20225Mar 3, 2021affected < 2.02-12.47.1fixed 2.02-12.47.1
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 con
- CVE-2020-25632Mar 3, 2021affected < 2.02-12.47.1fixed 2.02-12.47.1
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
- CVE-2020-25647Mar 3, 2021affected < 2.02-12.47.1fixed 2.02-12.47.1
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 arbitrar
- CVE-2020-14372Mar 3, 2021affected < 2.02-12.47.1fixed 2.02-12.47.1
A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the L
- CVE-2020-27749Mar 3, 2021affected < 2.02-12.47.1fixed 2.02-12.47.1
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 c
- CVE-2020-27779Mar 3, 2021affected < 2.02-12.47.1fixed 2.02-12.47.1
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 lay
- CVE-2020-14311Jul 31, 2020affected < 2.02-12.31.1fixed 2.02-12.31.1
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-2020-14310Jul 31, 2020affected < 2.02-12.31.1fixed 2.02-12.31.1
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 t
- CVE-2020-10713Jul 30, 2020affected < 2.02-12.31.1fixed 2.02-12.31.1
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
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