CVE-2010-4255
EPSS 0.82%
描述
The fixup_page_fault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization is enabled, does not verify that kernel mode is used to call the handle_gdt_ldt_mapping_fault function, which allows guest OS users to cause a denial of service (host OS BUG_ON) via a crafted memory access.
如何修補 CVE-2010-4255
要修補 CVE-2010-4255,請將受影響套件升級到下列已修補版本。
- Debian/xen—升級至 4.0.1-2 或更新版本
CVE-2010-4255 正在被利用嗎?
低 — EPSS 為 0.8%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 4.0.1-2