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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2020-29485
HistoryDec 15, 2020 - 6:15 p.m.

CVE-2020-29485

2020-12-1518:15:15
Debian Security Bug Tracker
security-tracker.debian.org
11

4.9 Medium

CVSS2

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

An issue was discovered in Xen 4.6 through 4.14.x. When acting upon a guest XS_RESET_WATCHES request, not all tracking information is freed. A guest can cause unbounded memory usage in oxenstored. This can lead to a system-wide DoS. Only systems using the Ocaml Xenstored implementation are vulnerable. Systems using the C Xenstored implementation are not vulnerable.

OSVersionArchitecturePackageVersionFilename
Debian12allxen< 4.14.0+88-g1d1d1f5391-1xen_4.14.0+88-g1d1d1f5391-1_all.deb
Debian11allxen< 4.14.0+88-g1d1d1f5391-1xen_4.14.0+88-g1d1d1f5391-1_all.deb
Debian999allxen< 4.14.0+88-g1d1d1f5391-1xen_4.14.0+88-g1d1d1f5391-1_all.deb
Debian13allxen< 4.14.0+88-g1d1d1f5391-1xen_4.14.0+88-g1d1d1f5391-1_all.deb

4.9 Medium

CVSS2

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%