Find real vulnerabilities before they ship
The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image.
Base Score
5.5
| Base Score | 5.5 |
|---|---|
| Vector String | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| Base Severity | Medium |
| Version | 3.0 |
| Attack Vector (AV) | LOCAL |
