| Package | Affected versions | Patched versions |
|---|---|---|
| gluster storage | = 3.5 | |
| virtualization host | = 4.0 | |
| samba | ≥ 4.14.0, < 4.14.12≥ 4.15.0, < 4.15.5< 4.13.17 | 4.14.124.15.54.13.17 |
| diskstation manager | ≥ 6.2, < 6.2.4-25556.4 | 6.2.4-25556.4 |
The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.
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