摘要:
In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users processes via a Facility Unavailable exception. To exploit the venerability, a local user starts a transaction (via the hardware transactional memory instruction tbegin) and then accesses vector registers. At some point, the vector registers will be corrupted with the values from a different local Linux process because of a missing arch/powerpc/kernel/process.c check.
安全等级: Low
公告ID: KylinSec-SA-2022-2402
发布日期: 2022年9月30日
关联CVE: CVE-2019-15030
In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users processes via a Facility Unavailable exception. To exploit the venerability, a local user starts a transaction (via the hardware transactional memory instruction tbegin) and then accesses vector registers. At some point, the vector registers will be corrupted with the values from a different local Linux process because of a missing arch/powerpc/kernel/process.c check.
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2019-15030 | KY3.4-4A | kernel | Unaffected |
| CVE-2019-15030 | KY3.4-5 | kernel | Unaffected |
| CVE-2019-15030 | KY3.5.1 | kernel | Unaffected |
