CVE-2020-29040
Last modified
CVE-2020-29040 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An issue was discovered in Xen through 4.14.x allowing x86 HVM guest OS users to cause a denial of service (stack corruption), cause a data leak, or possibly gain privileges because of an off-by-one error. NOTE: this issue is caused by an incorrect fix for CVE-2020-27671.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
Description
An issue was discovered in Xen through 4.14.x allowing x86 HVM guest OS users to cause a denial of service (stack corruption), cause a data leak, or possibly gain privileges because of an off-by-one error. NOTE: this issue is caused by an incorrect fix for CVE-2020-27671.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | <= 4.14.0 |
References
- http://www.openwall.com/lists/oss-security/2021/01/19/4Mailing List, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-355.htmlVendor Advisory
- https://xenbits.xen.org/xsa/advisory-355.htmlVendor Advisory
- http://www.openwall.com/lists/oss-security/2021/01/19/4Mailing List, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-355.htmlVendor Advisory
- https://xenbits.xen.org/xsa/advisory-355.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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