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gentooGentoo FoundationGLSA-202009-14
HistorySep 29, 2020 - 12:00 a.m.

Xen: Buffer overflow

2020-09-2900:00:00
Gentoo Foundation
security.gentoo.org
32
xen
hypervisor
buffer overflow
usb emulator
qemu
remote attacker
arbitrary code
denial of service
upgrade
version 4.13.1-r3
unix

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

5

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

EPSS

0.001

Percentile

30.2%

JSON

Background

Xen is a bare-metal hypervisor.

Description

An out-of-bounds read/write access issue was found in the USB emulator when using QEMU.

Impact

A remote attacker could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Xen users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-emulation/xen-4.13.1-r3"

All Xen tools users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose
 ">=app-emulation/xen-tools-4.13.1-r3"
OSVersionArchitecturePackageVersionFilename
Gentooanyallapp-emulation/xen< 4.13.1-r3UNKNOWN
Gentooanyallapp-emulation/xen-tools< 4.13.1-r3UNKNOWN

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CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

5

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

EPSS

0.001

Percentile

30.2%

JSON
Related for GLSA-202009-14
nessus78openvas36centos2prion1osv28redhat22alpinelinux1cve1fedora2huawei1redhatcve1xen1oraclelinux3ubuntu2debiancve1cbl_mariner1ibm1ubuntucve1cvelist1veracode1nvd1f51rocky1almalinux1amazon2citrix1suse3debian2archlinux1gentoo1