Total
4 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2021-3697 | 2 Gnu, Redhat | 12 Grub, Codeready Linux Builder, Developer Tools and 9 more | 2023-02-23 | 4.4 MEDIUM | 7.0 HIGH |
| 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. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12. | |||||
| CVE-2021-3696 | 3 Gnu, Netapp, Redhat | 13 Grub, Ontap Select Deploy Administration Utility, Codeready Linux Builder and 10 more | 2022-10-28 | 6.9 MEDIUM | 4.5 MEDIUM |
| 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 positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12. | |||||
| CVE-2021-3695 | 4 Fedoraproject, Gnu, Netapp and 1 more | 14 Fedora, Grub, Ontap Select Deploy Administration Utility and 11 more | 2022-10-28 | 4.4 MEDIUM | 4.5 MEDIUM |
| 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 exploited as an attacker needs to perform some triage over the heap layout to achieve signifcant results, also the values written into the memory are repeated three times in a row making difficult to produce valid payloads. This flaw affects grub2 versions prior grub-2.12. | |||||
| CVE-2013-4577 | 1 Gnu | 1 Grub | 2014-05-12 | 2.1 LOW | N/A |
| A certain Debian patch for GNU GRUB uses world-readable permissions for grub.cfg, which allows local users to obtain password hashes, as demonstrated by reading the password_pbkdf2 directive in the file. | |||||