CVE-2022-4283
HIGH7.8EPSS 0.20%xorg-server - security update
發布日:2022/12/14修改日:2026/4/28
描述
A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.
受影響套件(4)
- Debian/xorg-serverfrom 0, < 2:1.20.11-1+deb11u4
- Debian/xorg-serverfrom 0, < 2:1.20.4-1+deb10u7
- Debian/xorg-serverfrom 0, < 2:1.20.11-1+deb11u4
- Debian/xwaylandfrom 0, < 2:22.1.6-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |