In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via an interrupt. 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 MSR_TM_ACTIVE is misused in arch/powerpc/kernel/process.c.
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History
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Information
Published : 2019-09-13 13:15
Updated : 2024-11-21 04:27
NVD link : CVE-2019-15031
Mitre link : CVE-2019-15031
CVE.ORG link : CVE-2019-15031
JSON object : View
Products Affected
redhat
- enterprise_linux
linux
- linux_kernel
canonical
- ubuntu_linux
opensuse
- leap
CWE
CWE-662
Improper Synchronization