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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2022-33746
HistoryOct 11, 2022 - 1:15 p.m.

CVE-2022-33746

2022-10-1113:15:10
Debian Security Bug Tracker
security-tracker.debian.org
40
p2m pool
freeing delay
preemption checks
second level address translation
unix

6.5 Medium

CVSS3

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

0.0004 Low

EPSS

Percentile

14.3%

P2M pool freeing may take excessively long The P2M pool backing second level address translation for guests may be of significant size. Therefore its freeing may take more time than is reasonable without intermediate preemption checks. Such checking for the need to preempt was so far missing.

OSVersionArchitecturePackageVersionFilename
Debian12allxen< 4.16.2+90-g0d39a6d1ae-1xen_4.16.2+90-g0d39a6d1ae-1_all.deb
Debian11allxen< 4.14.5+86-g1c354767d5-1xen_4.14.5+86-g1c354767d5-1_all.deb
Debian999allxen< 4.16.2+90-g0d39a6d1ae-1xen_4.16.2+90-g0d39a6d1ae-1_all.deb
Debian13allxen< 4.16.2+90-g0d39a6d1ae-1xen_4.16.2+90-g0d39a6d1ae-1_all.deb

6.5 Medium

CVSS3

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

0.0004 Low

EPSS

Percentile

14.3%