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ubuntucveUbuntu.comUB:CVE-2020-16119
HistoryOct 13, 2020 - 12:00 a.m.

CVE-2020-16119

2020-10-1300:00:00
ubuntu.com
ubuntu.com
15

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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%

JSON

Use-after-free vulnerability in the Linux kernel exploitable by a local
attacker due to reuse of a DCCP socket with an attached dccps_hc_tx_ccid
object as a listener after being released. Fixed in Ubuntu Linux kernel
5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and
3.2.0-149.196.

Bugs

Notes

Author Note
sbeattie patch applied to the ubuntu-kernels was NACKed by upstream. The subsequent revision submitted upstream still needs rework and has not been accepted as of 2021-01-13.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-121.123UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-51.56UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-182.233) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux< 4.4.0-193.224UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1086.91UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1028.29UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1081.85) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1117.131UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1028.29~18.04.1UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1085.90~16.04.1UNKNOWN
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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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%

JSON
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