CVE-2021-44142
samba - security update
8.8
HIGH
CVSS 3.1
EPSS 73.7%
描述
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.
如何修補 CVE-2021-44142
要修補 CVE-2021-44142,請將受影響套件升級到下列已修補版本。
- —升級至 4.13.17-r0 或更新版本
CVE-2021-44142 正在被利用嗎?
可能 — EPSS 為 73.7%,屬於高被利用機率區間,建議優先修補。
受影響套件(1)
- >= 4.14.0, < 4.13.17-r0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |