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ubuntucveUbuntu.comUB:CVE-2020-12655
HistoryMay 05, 2020 - 12:00 a.m.

CVE-2020-12655

2020-05-0500:00:00
ubuntu.com
ubuntu.com
29

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

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0005 Low

EPSS

Percentile

14.7%

An issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in
the Linux kernel through 5.6.10. Attackers may trigger a sync of excessive
duration via an XFS v5 image with crafted metadata, aka CID-d0c7feaf8767.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux-oem-5.6< 5.6.0-1031.32UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-222.255) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux< 4.15.0-115.116UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-45.49UNKNOWN
ubuntu18.04noarchlinux-snapdragon< 4.15.0-1084.92UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1138.152) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1080.84UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1022.22UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1102.107) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws-5.3< 5.3.0-1033.35UNKNOWN
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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

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0005 Low

EPSS

Percentile

14.7%

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