CVE-2021-23983

CVSS V2 Medium 4.3 CVSS V3 Medium 6.5

Description

By causing a transition on a parent node by removing a CSS rule, an invalid property for a marker could have been applied, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 87.

Overview

CVE ID
CVE-2021-23983

Assigner
security@mozilla.org

Vulnerability Status
Analyzed

Published Version
2021-03-31T14:15:19

Last Modified Date
2022-05-03T16:04:40

Weakness Enumerations

CWE	URL
CWE-787	http://cwe.mitre.org/data/definitions/787.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:mozilla:firefox::::::::	1	OR		87.0

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:M/Au:N/C:N/I:N/A:P

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
4.3

Severity
MEDIUM

Exploitability Score
8.6

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
REQUIRED

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
6.5

Base Severity
MEDIUM

Exploitability Score
2.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://www.mozilla.org/security/advisories/mfsa2021-10/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1692684	Issue Tracking Permissions Required Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-23983
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23983

History

Created	Old Value	New Value	Data Type	Notes
2022-05-08 06:19:33				Added to TrackCVE
2022-12-06 00:44:13	2021-03-31T14:15Z	2021-03-31T14:15:19	CVE Published Date	updated
2022-12-06 00:44:13		2022-05-03T16:04:40	CVE Modified Date	updated
2022-12-06 00:44:13		Analyzed	Vulnerability Status	updated