CVE-2020-29040

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.

CVSS v3 8.8 HIGH
CVSS v2.0 4.6 MEDIUM

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

4.6^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://www.openwall.com/lists/oss-security/2021/01/19/4	Mailing List Third Party Advisory
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
http://xenbits.xen.org/xsa/advisory-355.html	Vendor Advisory
https://xenbits.xen.org/xsa/advisory-355.html	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:23

Type	Values Removed	Values Added
References	~~() http://www.openwall.com/lists/oss-security/2021/01/19/4 - Mailing List, Third Party Advisory~~	() http://www.openwall.com/lists/oss-security/2021/01/19/4 - Mailing List, Third Party Advisory
References	~~() http://xenbits.xen.org/xsa/advisory-355.html - Vendor Advisory~~	() http://xenbits.xen.org/xsa/advisory-355.html - Vendor Advisory
References	~~() https://xenbits.xen.org/xsa/advisory-355.html - Vendor Advisory~~	() https://xenbits.xen.org/xsa/advisory-355.html - Vendor Advisory

Information

Published : 2020-11-24 17:15

Updated : 2024-11-21 05:23

NVD link : CVE-2020-29040

Mitre link : CVE-2020-29040

CVE.ORG link : CVE-2020-29040

JSON object : View

Products Affected

xen

xen

CWE

CWE-193

Off-by-one Error

CWE-787

Out-of-bounds Write

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