CVE-2020-29040

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory xen.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://xenbits.xen.org/xsa/advisory-355.html vendor advisory
https://xenbits.xen.org/xsa/advisory-355.html vendor advisory
http://www.openwall.com/lists/oss-security/2021/01/19/4 mailing list third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-29040?
CVE-2020-29040 has been scored as a high severity vulnerability.
How to fix CVE-2020-29040?
To fix CVE-2020-29040, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-29040 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-29040 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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