CVE-2021-4206
HIGH8.2EPSS 0.16%qemu - security update
發布日:2022/4/29修改日:2026/4/28
描述
A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.
受影響套件(2)
- Debian/qemufrom 0, < 1:5.2+dfsg-11+deb11u2
- Debian/qemufrom 0, < 1:5.2+dfsg-11+deb11u2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |