CVE-2020-14311
published 2020-07-31CVE-2020-14311: 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…
medium6CVSS 3.1
AVLACLPRHUINSUCNIHAH
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.
Affected
31 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | grub2 | < grub2 2.04-9 (bookworm) | grub2 2.04-9 (bookworm) |
| gnu | grub2 | < 2.06 | 2.06 |
| gnu | grub2 | >= 0 < 2.04-9 | 2.04-9 |
| gnu | grub2 | >= 0 < 2.04-9 | 2.04-9 |
| gnu | grub2 | >= 0 < 2.04-9 | 2.04-9 |
| gnu | grub2 | >= 0 < 2.04-9 | 2.04-9 |
| gnu | grub2 | >= 0 < 2.02~beta2-36ubuntu3.26 | 2.02~beta2-36ubuntu3.26 |
| gnu | grub2 | >= 0 < 2.02~beta2-36ubuntu3.27 | 2.02~beta2-36ubuntu3.27 |
| gnu | grub2 | >= 0 < 2.02-2ubuntu8.16 | 2.02-2ubuntu8.16 |
| gnu | grub2 | >= 0 < 2.02-2ubuntu8.17 | 2.02-2ubuntu8.17 |
| gnu | grub2 | >= 0 < 2.04-1ubuntu26.1 | 2.04-1ubuntu26.1 |
| gnu | grub2 | >= 0 < 2.04-1ubuntu26.2 | 2.04-1ubuntu26.2 |
| gnu | grub2 | >= 0 < 2.02~beta2-9ubuntu1.20 | 2.02~beta2-9ubuntu1.20 |
| gnu | grub2 | >= 0 < 2.02~beta2-9ubuntu1.21 | 2.02~beta2-9ubuntu1.21 |
| msrc | azl3_grub2_2.06-23_on_azure_linux_3.0 | — | — |
| msrc | cbl2_grub2_2.06rc1-7_on_cbl_mariner_2.0 | — | — |
| msrc | cm1_grub2_2.06rc1-4_on_cbl_mariner_1.0 | — | — |
| opensuse | leap | — | — |
| opensuse | leap | — | — |
| paloalto | pan-os | — | — |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.16.0MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
osv8.2HIGH