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.
References
Link | Resource |
---|---|
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html | Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html | Third Party Advisory |
http://www.openwall.com/lists/oss-security/2019/09/10/4 | Mailing List Patch Third Party Advisory |
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a8318c13e79badb92bc6640704a64cc022a6eb97 | Exploit Mailing List Patch Vendor Advisory |
https://security.netapp.com/advisory/ntap-20191004-0001/ | Third Party Advisory |
https://usn.ubuntu.com/4135-1/ | Third Party Advisory |
https://usn.ubuntu.com/4135-2/ | Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
No history.
Information
Published : 2019-09-13 13:15
Updated : 2024-02-28 17:08
NVD link : CVE-2019-15031
Mitre link : CVE-2019-15031
CVE.ORG link : CVE-2019-15031
JSON object : View
Products Affected
linux
- linux_kernel
canonical
- ubuntu_linux
redhat
- enterprise_linux
opensuse
- leap
CWE
CWE-662
Improper Synchronization