First published: Tue Dec 15 2020(Updated: )
An issue was discovered in Xen 4.6 through 4.14.x. When acting upon a guest XS_RESET_WATCHES request, not all tracking information is freed. A guest can cause unbounded memory usage in oxenstored. This can lead to a system-wide DoS. Only systems using the Ocaml Xenstored implementation are vulnerable. Systems using the C Xenstored implementation are not vulnerable.
Credit: cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
Xen Xen | >=4.6.0<=4.14.0 | |
Debian Debian Linux | =10.0 | |
Fedoraproject Fedora | =32 | |
Fedoraproject Fedora | =33 | |
debian/xen | 4.11.4+107-gef32c7afa2-1 4.14.6-1 4.14.5+94-ge49571868d-1 4.17.1+2-gb773c48e36-1 4.17.2+55-g0b56bed864-1 |
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