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Anton Chuvakin
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Profile of Anton Chuvakin

Head of Security Solution Strategy, Chronicle
Member Since: 10/29/2019
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News & Commentary Posts: 3
Comments: 0

Anton is a recognized security expert in the field of log management, SIEM and PCI DSS compliance. He is the author of several books and serves on advisory boards of several security startups. Before joining Chronicle, Anton was a research vice president and Distinguished Analyst at Gartner for eight years.
Articles by Anton Chuvakin
posted in November 2019
COVID-19: Latest Security News & Commentary
Dark Reading Staff 7/6/2020
Ripple20 Threatens Increasingly Connected Medical Devices
Kelly Sheridan, Staff Editor, Dark Reading,  6/30/2020
DDoS Attacks Jump 542% from Q4 2019 to Q1 2020
Dark Reading Staff 6/30/2020
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Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-15564
PUBLISHED: 2020-07-07
An issue was discovered in Xen through 4.13.x, allowing Arm guest OS users to cause a hypervisor crash because of a missing alignment check in VCPUOP_register_vcpu_info. The hypercall VCPUOP_register_vcpu_info is used by a guest to register a shared region with the hypervisor. The region will be map...
CVE-2020-15565
PUBLISHED: 2020-07-07
An issue was discovered in Xen through 4.13.x, allowing x86 Intel HVM guest OS users to cause a host OS denial of service or possibly gain privileges because of insufficient cache write-back under VT-d. When page tables are shared between IOMMU and CPU, changes to them require flushing of both TLBs....
CVE-2020-15566
PUBLISHED: 2020-07-07
An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a host OS crash because of incorrect error handling in event-channel port allocation. The allocation of an event-channel port may fail for multiple reasons: (1) port is already in use, (2) the memory allocation failed, o...
CVE-2020-15567
PUBLISHED: 2020-07-07
An issue was discovered in Xen through 4.13.x, allowing Intel guest OS users to gain privileges or cause a denial of service because of non-atomic modification of a live EPT PTE. When mapping guest EPT (nested paging) tables, Xen would in some circumstances use a series of non-atomic bitfield writes...
CVE-2020-15563
PUBLISHED: 2020-07-07
An issue was discovered in Xen through 4.13.x, allowing x86 HVM guest OS users to cause a hypervisor crash. An inverted conditional in x86 HVM guests' dirty video RAM tracking code allows such guests to make Xen de-reference a pointer guaranteed to point at unmapped space. A malicious or buggy HVM g...