The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory.
結論預警: CVE-2016-1575 綜合評估為高可利用風險(66/100):CVSS 技術影響為高級,利用機率(EPSS 0.92%) 核心證據: 已收錄 2 筆公開利用參考(Exploit-DB)。 強制指令: 存在公開利用—請盤點暴露面、落實緩解措施並優先修補。
風險隨態勢動態變化;本站持續評估並同步更新本頁展示內容。
| EDB-ID | 來源 | 類型 | 公開時間 | 連結 |
|---|---|---|---|---|
| 41762 | exploit_db | edb | 2016-11-22 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS 日更估計相對被利用可能性;百分位表示該 CVE 在已評分漏洞中的相對排名(越高表示相對更嚴重)。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化(新 − 舊) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.53% | 0.92% | +0.40% |
| 2 | 2025-03-30 | 0.86% | 0.53% | -0.33% |
| 3 | 2025-03-29 | — | 0.86% | — |
完整 EPSS 歷史 (共 6 筆)
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 7.2 | 2.0 | HIGH |
|
3.9 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-1575 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-1575 |
redhat
|
— | — | https://access.redhat.com/security/cve/CVE-2016-1575 |
suse
|
high | CVE-2016-1575 severity important: SUSE including 10 source package names (kernel-default, kernel-default-base, …), 238 product×package rows across 50 product lines (HPE Helion OpenStack 8, SLES for SAP Applications 11 SP3, … (50 product lines)): Known Not Affected 238. | https://www.suse.com/security/cve/CVE-2016-1575/ |
ubuntu
|
medium | CVE-2016-1575 medium priority: Ubuntu including 27 source packages (linux, linux-armadaxp, …), 207 status rows across 8 suites (precise, trusty, upstream, vivid, wily, xenial, yakkety, zesty): DNE 135, needed 27, ignored 22, not-affected 15, released 8. | https://ubuntu.com/security/CVE-2016-1575 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| linux | linux_kernel | <= 4.5.2 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| canonical | ubuntu_core | 15.04 | cpe:2.3:o:canonical:ubuntu_core:15.04:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 15.10 | cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 16.10 | cpe:2.3:o:canonical:ubuntu_linux:16.10:*:*:*:*:*:*:* |
| canonical | ubuntu_touch | 15.04 | cpe:2.3:o:canonical:ubuntu_touch:15.04:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360 | Patch Vendor Advisory |
| http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1575.html | Third Party Advisory |
| http://www.halfdog.net/Security/2016/UserNamespaceOverlayfsXattrSetgidPrivilegeEscalation/ | Exploit Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2016/02/24/7 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2021/10/18/1 | Mailing List Third Party Advisory |
| https://launchpad.net/bugs/1534961 | Third Party Advisory |