CVE-2020-29570
- State
- Published
- Severity
- Not scored
- Published
- Dec 15, 2020
- Updated
- Aug 4, 2024
- Reserved
- Dec 4, 2020
Description
An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://xenbits.xenproject.org/xsa/advisory-358.html
- DSA-4812vendor-advisory
- [oss-security] 20201216 Xen Security Advisory 358 v5 (CVE-2020-29570) - FIFO event channels control block related orderingmailing-list
- FEDORA-2020-64859a826bvendor-advisory
- FEDORA-2020-df772b417bvendor-advisory
- GLSA-202107-30vendor-advisory
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