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CVE-2019-15031 Detail

Description

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink 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 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-662 Improper Synchronization cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

9 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-15031
NVD Published Date:
09/13/2019
NVD Last Modified:
07/21/2021
Source:
MITRE