Lucene search

K
ubuntuUbuntuUSN-4502-1
HistorySep 16, 2020 - 12:00 a.m.

websocket-extensions vulnerability

2020-09-1600:00:00
ubuntu.com
54

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

7.6 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.02 Low

EPSS

Percentile

88.8%

Releases

  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • ruby-websocket-extensions - Generic extension manager for WebSocket connections

Details

It was discovered that websocket-extensions does not properly parse
special headers. A remote attacker could use this issue to cause regex
backtracking, resulting in a denial of service. (CVE-2020-7663)

OSVersionArchitecturePackageVersionFilename
Ubuntu20.04noarchruby-websocket-extensions< 0.1.2-1+deb9u1build0.20.04.1UNKNOWN
Ubuntu18.04noarchruby-websocket-extensions< 0.1.2-1+deb9u1build0.18.04.1UNKNOWN
Ubuntu16.04noarchruby-websocket-extensions< 0.1.2-1+deb9u1build0.16.04.1UNKNOWN

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

7.6 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.02 Low

EPSS

Percentile

88.8%