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ubuntucveUbuntu.comUB:CVE-2018-18690
HistoryOct 26, 2018 - 12:00 a.m.

CVE-2018-18690

2018-10-2600:00:00
ubuntu.com
ubuntu.com
6

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

4.9 Medium

CVSS2

Access Vector

LOCAL

Access 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

0.0004 Low

EPSS

Percentile

9.3%

In the Linux kernel before 4.17, a local attacker able to set attributes on
an xfs filesystem could make this filesystem non-operational until the next
mount by triggering an unchecked error condition during an xfs attribute
change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c
mishandles ATTR_REPLACE operations with conversion of an attr from short to
long form.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-43.46UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-164.214UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-141.167UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1031.33UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1037.40UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1074.84UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1031.33~16.04.1UNKNOWN
ubuntu18.04noarchlinux-azure< 4.15.0-1036.38UNKNOWN
ubuntu14.04noarchlinux-azure< 4.15.0-1036.38~14.04.2UNKNOWN
ubuntu16.04noarchlinux-azure< 4.15.0-1036.38~16.04.1UNKNOWN
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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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

4.9 Medium

CVSS2

Access Vector

LOCAL

Access 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

0.0004 Low

EPSS

Percentile

9.3%