In the Linux kernel, the following vulnerability has been resolved: fuse: reject fuse_notify() pagecache ops on directories The operations FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE allow the FUSE daemon to actively write/read pagecache contents. For directories with FOPEN_CACHE_DIR, the pagecache is used as kernel-internal cache storage, and userspace is not supposed to have direct access to this cache - in particular, fuse_parse_cache() will hit WARN_ON() if the cache contains bogus data. Reject FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE on anything other than regular files with -EINVAL.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
NVD-CWE-noinfo
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd38544adc0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36b435a00> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd368335600> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36066ae80> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36b3f0bc0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd385616d80> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd2a159fc80> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd36b434500> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd36a714940> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd385449f40> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd289dc6b00> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd38477ce80> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd2a159fb80> | 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:*:*:*:*:*:* |