vulnerability
FreeBSD: VID-521ce804-52fd-11e8-9123-a4badb2f4699 (CVE-2018-8897): FreeBSD -- Mishandling of x86 debug exceptions
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | May 8, 2018 | Dec 10, 2025 | Dec 10, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
May 8, 2018
Added
Dec 10, 2025
Modified
Dec 10, 2025
Description
Problem Description: The MOV SS and POP SS instructions inhibit debug exceptions until the instruction boundary following the next instruction. If that instruction is a system call or similar instruction that transfers control to the operating system, the debug exception will be handled in the kernel context instead of the user context. Impact: An authenticated local attacker may be able to read sensitive data in kernel memory, control low-level operating system functions, or may panic the system.
Solutions
freebsd-upgrade-base-11_1-release-p10freebsd-upgrade-base-10_4-release-p9
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