CVE-2026-40195
Incus has a Nil-Pointer Dereference Panic via Bucket Metadata in github.com/lxc/incus
描述
Incus is a system container and virtual machine manager. In versions before 7.0.0, missing validation logic in the storage bucket import logic allows an authenticated user with access to the storage bucket feature to cause the Incus daemon to crash. The vulnerability is present in the backup metadata handling logic, where the daemon processes the index.yaml file from an imported archive and accesses members of the parsed backup configuration without first verifying that the configuration object was initialized. A malicious or malformed index.yaml that omits the config block causes a nil-pointer dereference during bucket import operations and terminates the daemon. Repeated use of this issue can be used to keep Incus offline, causing a denial of service. This issue is fixed in version 7.0.0.
如何修補 CVE-2026-40195
要修補 CVE-2026-40195,請將受影響套件升級到下列已修補版本。
- —升級至 6.0.4-2+deb13u7 或更新版本
- —未列出修補版本
- —未列出修補版本
- —升級至 7.0.0 或更新版本
- —升級至 7.0.0 或更新版本
CVE-2026-40195 正在被利用嗎?
低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。
受影響套件(5)
- from 0, < 6.0.4-2+deb13u7
- from 0
- from 0
- from 0, < 7.0.0
- from 0, < 7.0.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |