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freebsdFreeBSD5D91370B-61FD-11EB-B87A-901B0EF719AB
HistoryJan 29, 2021 - 12:00 a.m.

FreeBSD -- Xen guests can triger backend Out Of Memory

2021-01-2900:00:00
vuxml.freebsd.org
70

CVSS2

4.9

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0

Percentile

14.2%

JSON

Problem Description:
Some OSes (including Linux, FreeBSD, and NetBSD) are processing watch
events using a single thread. If the events are received faster than
the thread is able to handle, they will get queued.
As the queue is unbound, a guest may be able to trigger a OOM in
the backend.

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchfreebsd-kernel= 12.2UNKNOWN
FreeBSDanynoarchfreebsd-kernel< 12.2_3UNKNOWN

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CVSS2

4.9

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0

Percentile

14.2%

JSON
Related for 5D91370B-61FD-11EB-B87A-901B0EF719AB
nessus38ubuntucve1xen1veracode1nvd1cvelist1cve1alpinelinux1osv8debiancve1freebsd_advisory1prion1photon4oraclelinux13openvas19ubuntu4amazon2suse2cloudfoundry1citrix1debian4gentoo1