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UbuntuUSN-4562-2

HistoryOct 26, 2020 - 12:00 a.m.

kramdown vulnerability

2020-10-2600:00:00

ubuntu.com

kramdown

ubuntu 20.10

ruby library

code execution

file access

unix

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.5

Confidence

High

EPSS

0.013

Percentile

86.2%

JSON

Releases

Ubuntu 20.10

Packages

ruby-kramdown - Fast, pure-Ruby Markdown-superset converter - ruby library

Details

It was discovered that kramdown insecurely handled certain crafted input. An
attacker could use this vulnerability to read restricted files or execute
arbitrary code.

OSVersionArchitecturePackageVersionFilename
Ubuntu20.10noarchkramdown< 1.17.0-4ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchruby-kramdown< 1.17.0-4ubuntu0.20.10.1UNKNOWN