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CVE-2019-19602 Detail

Description

fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of incorrect fpu_fpregs_owner_ctx caching, as demonstrated by mishandling of signal-based non-cooperative preemption in Go 1.14 prereleases on amd64, aka CID-59c4bd853abc.


Metrics

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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
https://bugzilla.kernel.org/show_bug.cgi?id=205663 Issue Tracking  Third Party Advisory 
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2 Release Notes  Vendor Advisory 
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59c4bd853abcea95eccc167a7d7fd5f1a5f47b98 Exploit  Vendor Advisory 
https://github.com/golang/go/issues/35777#issuecomment-561935388 Issue Tracking  Third Party Advisory 
https://github.com/torvalds/linux/commit/59c4bd853abcea95eccc167a7d7fd5f1a5f47b98 Exploit  Third Party Advisory 
https://security.netapp.com/advisory/ntap-20200103-0001/ Third Party Advisory 
https://usn.ubuntu.com/4284-1/ Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer cwe source acceptance level NIST  

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-19602
NVD Published Date:
12/05/2019
NVD Last Modified:
08/24/2020
Source:
MITRE