CVE-2021-3592
3.8
LOW
CVSS 3.1
EPSS 0.33%
描述
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
如何修補 CVE-2021-3592
要修補 CVE-2021-3592,請將受影響套件升級到下列已修補版本。
- —升級至 4.4.0-1+deb11u2 或更新版本
- —升級至 1:4.1-2 或更新版本
CVE-2021-3592 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 4.4.0-1+deb11u2
- from 0, < 1:4.1-2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N |