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freebsdFreeBSD8CBD9C08-F8B9-11E6-AE1B-002590263BF5
HistoryFeb 21, 2017 - 12:00 a.m.

xen-tools -- cirrus_bitblt_cputovideo does not check if memory region is safe

2017-02-2100:00:00
vuxml.freebsd.org
13

9.9 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

9 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.002 Low

EPSS

Percentile

50.8%

JSON

The Xen Project reports:

In CIRRUS_BLTMODE_MEMSYSSRC mode the bitblit copy routine
cirrus_bitblt_cputovideo fails to check whether the specified
memory region is safe. A malicious guest administrator can cause
an out of bounds memory write, very likely exploitable as a
privilege escalation.

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchxen-tools< 4.7.1_4UNKNOWN

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2017-02-22 00:00:00
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9.9 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

9 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.002 Low

EPSS

Percentile

50.8%

JSON
Related for 8CBD9C08-F8B9-11E6-AE1B-002590263BF5
oraclelinux5fedora4nessus54gentoo2openvas29redhat12ubuntucve1prion1centos3debiancve1xen1veracode1redhatcve1alpinelinux1cve1osv5citrix1debian4suse12ubuntu1