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ubuntucveUbuntu.comUB:CVE-2018-13093
HistoryJul 03, 2018 - 12:00 a.m.

CVE-2018-13093

2018-07-0300:00:00
ubuntu.com
ubuntu.com
22

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

55.8%

An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through
4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a
NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image.
This occurs because of a lack of proper validation that cached inodes are
free during allocation.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-58.64UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-201.233UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1047.49UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1085.89) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1121.135UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1047.49~16.04.1UNKNOWN
ubuntu18.04noarchlinux-azure< 4.18.0-1011.11~18.04.1UNKNOWN
ubuntu16.04noarchlinux-azure< 4.15.0-1055.60UNKNOWN
ubuntu18.04noarchlinux-azure-edge< 4.18.0-1011.11~18.04.1UNKNOWN
ubuntu18.04noarchlinux-gcp< 4.15.0-1040.42UNKNOWN
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5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

55.8%