Vulnerability Details CVE-2021-28039
An issue was discovered in the Linux kernel 5.9.x through 5.11.3, as used with Xen. In some less-common configurations, an x86 PV guest OS user can crash a Dom0 or driver domain via a large amount of I/O activity. The issue relates to misuse of guest physical addresses when a configuration has CONFIG_XEN_UNPOPULATED_ALLOC but not CONFIG_XEN_BALLOON_MEMORY_HOTPLUG.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 37.1%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 2.1
References
- http://www.openwall.com/lists/oss-security/2021/03/05/2
- http://xenbits.xen.org/xsa/advisory-369.html
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=882213990d32fd224340a4533f6318dd152be4b2
- https://security.netapp.com/advisory/ntap-20210409-0001/
- http://www.openwall.com/lists/oss-security/2021/03/05/2
- http://xenbits.xen.org/xsa/advisory-369.html
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=882213990d32fd224340a4533f6318dd152be4b2
- https://security.netapp.com/advisory/ntap-20210409-0001/
Products affected by CVE-2021-28039
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cpe:2.3:a:netapp:cloud_backup:-
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cpe:2.3:o:linux:linux_kernel:*
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cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-
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cpe:2.3:o:xen:xen:-