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ubuntucveUbuntu.comUB:CVE-2018-16884
HistoryDec 18, 2018 - 12:00 a.m.

CVE-2018-16884

2018-12-1800:00:00
ubuntu.com
ubuntu.com
26

8 High

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.7 Medium

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

27.1%

JSON

A flaw was found in the Linux kernel’s NFS41+ subsystem. NFS41+ shares
mounted in different network namespaces at the same time can make
bc_svc_process() use wrong back-channel IDs and cause a use-after-free
vulnerability. Thus a malicious container user can cause a host kernel
memory corruption and a system panic. Due to the nature of the flaw,
privilege escalation cannot be fully ruled out.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-50.54UNKNOWN
ubuntu18.10noarchlinux< 4.18.0-20.21UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-145.171UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1039.41UNKNOWN
ubuntu18.10noarchlinux-aws< 4.18.0-1016.18UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1040.43UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1079.89UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1039.41~16.04.1UNKNOWN
ubuntu18.04noarchlinux-azure< 4.18.0-1018.18~18.04.1UNKNOWN
ubuntu18.10noarchlinux-azure< 4.18.0-1018.18UNKNOWN
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1-10 of 381

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8 High

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.7 Medium

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

27.1%

JSON
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