Vulnerability Details CVE-2020-29568
An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 28.6%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.9
Products affected by CVE-2020-29568
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cpe:2.3:o:debian:debian_linux:10.0
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cpe:2.3:o:debian:debian_linux:9.0
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cpe:2.3:o:xen:xen:4.1.6.1
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