In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Bound root directory content to block size __tb_property_parse_dir() does not check that content_offset + content_len fits within block_len for the root directory case. When rootdir->length equals or exceeds block_len - 2, the entry loop reads past the allocated property block. Add a bounds check after computing content_offset and content_len to reject directories whose content extends past the block.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
CWE-125
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36be79880> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36be783c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd319ebb000> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36be7b4c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36be788c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36be78b00> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd39c447f80> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd36b4483c0> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd384916480> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd36be796c0> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd34948d600> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd36be7af00> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd36be7a7c0> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd3408928c0> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:* |