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.
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/2019/09/10/3 | Mailing List Patch Third Party Advisory |
https://access.redhat.com/errata/RHSA-2020:0740 | |
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8205d5d98ef7f155de211f5e2eb6ca03d95a5a60 | 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 : 2020-08-24 17:37
NVD link : CVE-2019-15030
Mitre link : CVE-2019-15030
CVE.ORG link : CVE-2019-15030
JSON object : View
Products Affected
redhat
- enterprise_linux
canonical
- ubuntu_linux
linux
- linux_kernel
opensuse
- leap
CWE
CWE-862
Missing Authorization