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ubuntucveUbuntu.comUB:CVE-2020-27671
HistoryOct 22, 2020 - 12:00 a.m.

CVE-2020-27671

2020-10-2200:00:00
ubuntu.com
ubuntu.com
12

CVSS2

6.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

0

Percentile

14.2%

JSON

An issue was discovered in Xen through 4.14.x allowing x86 HVM and PVH
guest OS users to cause a denial of service (data corruption), cause a data
leak, or possibly gain privileges because coalescing of per-page IOMMU TLB
flushes is mishandled.

Notes

Author Note
mdeslaur hypervisor packages are in universe. For issues in the hypervisor, add appropriate tags to each section, ex: Tags_xen: universe-binary
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchxen< anyUNKNOWN
ubuntu20.04noarchxen< anyUNKNOWN
ubuntu16.04noarchxen< anyUNKNOWN

Related

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redhatcve 2
cvelist 2
debiancve 2
prion 2
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xen 1
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cve 2
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openvas 14
suse 4
fedora 1
debian 1
citrix 1
gentoo 1
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veracode
Privilege Escalation
2021-01-21 16:35:11
Privilege Escalation
2021-01-21 16:27:28
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2020-10-23 19:04:57
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Xen mishandle IOMMU TLB flushes DoS (XSA-346)
2021-01-14 00:00:00
openSUSE Security Update : xen (openSUSE-2020-1844)
2020-11-06 00:00:00
openSUSE Security Update : xen (openSUSE-2020-1783)
2020-11-02 00:00:00
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undue deferral of IOMMU TLB flushes
2020-10-20 11:49:00
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SUSE: Security Advisory (SUSE-SU-2020:3051-1)
2021-06-09 00:00:00
openSUSE: Security Advisory for xen (openSUSE-SU-2020:1783-1)
2020-11-03 00:00:00
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2021-04-19 00:00:00
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2020-11-06 00:00:00
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2020-12-04 18:15:26
citrix
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2020-10-27 04:00:00
gentoo
gentoo
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2020-11-11 00:00:00

CVSS2

6.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

0

Percentile

14.2%

JSON
Related for UB:CVE-2020-27671
veracode2redhatcve2cvelist2debiancve2prion2nessus19nvd2xen1osv3cve2ubuntucve1openvas14suse4fedora1debian1citrix1gentoo1