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MitreCVE-2021-28834

HistoryMar 19, 2021 - 7:15 a.m.

CVE-2021-28834

2021-03-1907:15:13

mitre

web.nvd.nist.gov

kramdown

cve-2021-28834

security

vulnerability

nvd

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/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

9.2

Confidence

High

EPSS

0.02

Percentile

88.9%

JSON

Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.

Affected configurations

Nvd

Node

kramdown_projectkramdownRange<2.3.1ruby

Node

fedoraprojectfedoraMatch32

fedoraprojectfedoraMatch33

fedoraprojectfedoraMatch34

Node

debiandebian_linuxMatch10.0

VendorProductVersionCPE
kramdown_projectkramdown*cpe:2.3:a:kramdown_project:kramdown:*:*:*:*:*:ruby:*:*
fedoraprojectfedora32cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
fedoraprojectfedora34cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
kramdown_project	kramdown	*	cpe:2.3:a:kramdown_project:kramdown::::::ruby::*
fedoraproject	fedora	32	cpe:2.3:o:fedoraproject:fedora:32:::::::*
fedoraproject	fedora	33	cpe:2.3:o:fedoraproject:fedora:33:::::::*
fedoraproject	fedora	34	cpe:2.3:o:fedoraproject:fedora:34:::::::*
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*