CVE-2021-36773

uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality).

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/vtriolet/writings/blob/main/posts/2021/ublock_origin_and_umatrix_denial_of_service.adoc	Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/06/msg00024.html	Mailing List Third Party Advisory
https://news.ycombinator.com/item?id=27833752	Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:sciruby:nmatrix::::::::
	cpe:2.3:a:ublockorigin:ublock_origin::::::::
	cpe:2.3:a:umatrix_project:umatrix::::::::

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-07-18 04:15

Updated : 2023-01-20 02:12

NVD link : CVE-2021-36773

Mitre link : CVE-2021-36773

CVE.ORG link : CVE-2021-36773

JSON object : View

Products Affected

sciruby

nmatrix

debian

debian_linux

ublockorigin

ublock_origin

umatrix_project

umatrix

CWE

CWE-674

Uncontrolled Recursion

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