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ubuntuUbuntuUSN-4017-2
HistoryJun 17, 2019 - 12:00 a.m.

Linux kernel vulnerabilities

2019-06-1700:00:00
ubuntu.com
200

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8 High

AI Score

Confidence

High

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.972 High

EPSS

Percentile

99.8%

JSON

Releases

  • Ubuntu 14.04 ESM
  • Ubuntu 12.04

Packages

  • linux - Linux kernel
  • linux-aws - Linux kernel for Amazon Web Services (AWS) systems
  • linux-azure - Linux kernel for Microsoft Azure Cloud systems
  • linux-lts-trusty - Linux hardware enablement kernel from Trusty for Precise ESM
  • linux-lts-xenial - Linux hardware enablement kernel from Xenial for Trusty

Details

USN-4017-1 fixed vulnerabilities in the Linux kernel for Ubuntu.
This update provides the corresponding updates for the Linux kernel
for Ubuntu 16.04 ESM and Ubuntu 14.04 ESM.

Jonathan Looney discovered that the TCP retransmission queue implementation
in the Linux kernel could be fragmented when handling certain TCP Selective
Acknowledgment (SACK) sequences. A remote attacker could use this to cause
a denial of service. (CVE-2019-11478)

Jonathan Looney discovered that an integer overflow existed in the Linux
kernel when handling TCP Selective Acknowledgments (SACKs). A remote
attacker could use this to cause a denial of service (system crash).
(CVE-2019-11477)

OSVersionArchitecturePackageVersionFilename
Ubuntu14.04noarchlinux-image-4.4.0-151-generic-lpae< 4.4.0-151.178~14.04.1UNKNOWN
Ubuntu14.04noarchblock-modules-4.4.0-148-generic-di< 4.4.0-148.174~14.04.1UNKNOWN
Ubuntu14.04noarchcrypto-modules-4.4.0-148-generic-di< 4.4.0-148.174~14.04.1UNKNOWN
Ubuntu14.04noarchfat-modules-4.4.0-148-generic-di< 4.4.0-148.174~14.04.1UNKNOWN
Ubuntu14.04noarchfb-modules-4.4.0-148-generic-di< 4.4.0-148.174~14.04.1UNKNOWN
Ubuntu14.04noarchfirewire-core-modules-4.4.0-148-generic-di< 4.4.0-148.174~14.04.1UNKNOWN
Ubuntu14.04noarchfloppy-modules-4.4.0-148-generic-di< 4.4.0-148.174~14.04.1UNKNOWN
Ubuntu14.04noarchfs-core-modules-4.4.0-148-generic-di< 4.4.0-148.174~14.04.1UNKNOWN
Ubuntu14.04noarchfs-secondary-modules-4.4.0-148-generic-di< 4.4.0-148.174~14.04.1UNKNOWN
Ubuntu14.04noarchinput-modules-4.4.0-148-generic-di< 4.4.0-148.174~14.04.1UNKNOWN
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7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8 High

AI Score

Confidence

High

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.972 High

EPSS

Percentile

99.8%

JSON
Related for USN-4017-2
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