CVE-2021-41800

2021-09-3020:49:13

redhat.com

access.redhat.com

mediawiki

flaw

special:contributions

query mishandling

denial of service

system availability

resource exhaustion

cve-2021-41800

CVSS2

Attack Vector

NETWORK

Attack 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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.003

Percentile

66.3%

JSON

A flaw was found in MediaWiki, where Visiting Special:Contributions may result in a long query due to mishandled PoolCounter protection. This issue may cause resource exhaustion, resulting in a denial of service. The highest threat from this vulnerability is to system availability.