CVE-2020-29040 — Vulnetix

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CVE-2020-29040 PUBLISHED

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 0.07% · 20.0th percentile

Risk Scores

EPSS Score

0.07%

20.0th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:16.04:LTS	xen	0, 4.5.1-0ubuntu1, 4.5.1-0ubuntu2
Ubuntu:18.04:LTS	xen	0, 4.9.0-0ubuntu3, 4.9.0-0ubuntu4
Ubuntu:20.04:LTS	xen	0, 4.9.2-0ubuntu2, 4.9.2-0ubuntu6

Timeline

Nov 24, 2020 CVE Published
Nov 24, 2020 PoC Published
Apr 14, 2021 EPSS Score
Jun 22, 2021 EPSS Score
Aug 23, 2021 EPSS Score
Oct 24, 2021 EPSS Score
Jan 6, 2022 EPSS Score
Feb 4, 2022 EPSS Score
Feb 25, 2022 EPSS Score
Apr 1, 2022 EPSS Score
Apr 28, 2022 EPSS Score
Jun 29, 2022 EPSS Score

References

https://ubuntu.com/security/CVE-2020-29040 third-party-advisory
https://xenbits.xen.org/xsa/advisory-355.html third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2020-29040 third-party-advisory

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