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ubuntucveUbuntu.comUB:CVE-2018-17182
HistorySep 19, 2018 - 12:00 a.m.

CVE-2018-17182

2018-09-1900:00:00
ubuntu.com
ubuntu.com
13

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

44.2%

JSON

An issue was discovered in the Linux kernel through 4.18.8. The
vmacache_flush_all function in mm/vmacache.c mishandles sequence number
overflows. An attacker can trigger a use-after-free (and possibly gain
privileges) via certain thread creation, map, unmap, invalidation, and
dereference operations.

Notes

Author Note
sbeattie as of 2018-09-26, fixes for this issue are applied to all kernels uploaded to RELEASE-proposed today. and should be released around Monday, Oct 1, 2018.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-36.39UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-137.163UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1023.23UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1031.34UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1069.79UNKNOWN
ubuntu18.04noarchlinux-azure< 4.15.0-1025.26UNKNOWN
ubuntu14.04noarchlinux-azure< 4.15.0-1030.31~14.04.1UNKNOWN
ubuntu16.04noarchlinux-azure< 4.15.0-1025.26~16.04.1UNKNOWN
ubuntu16.04noarchlinux-azure-edge< 4.15.0-1025.26UNKNOWN
ubuntu18.04noarchlinux-gcp< 4.15.0-1021.22UNKNOWN
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7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

44.2%

JSON
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