CVE-2021-21724

CVSS V2 Low 2.1 CVSS V3 Medium 4.4

Description

A ZTE product has a memory leak vulnerability. Due to the product's improper handling of memory release in certain scenarios, a local attacker with device permissions repeatedly attenuated the optical signal to cause memory leak and abnormal service. This affects: ZXR10 8900E, all versions up to V3.03.20R2B30P1.

Overview

CVE ID
CVE-2021-21724

Assigner
psirt@zte.com.cn

Vulnerability Status
Analyzed

Published Version
2021-02-26T03:15:12

Last Modified Date
2021-03-04T13:49:02

Weakness Enumerations

CWE	URL
CWE-401	http://cwe.mitre.org/data/definitions/401.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
		AND
cpe:2.3:o:zte:zxr10_8900e_firmware::::::::	1	OR	3.03.20r2b30p1
cpe:2.3:h:zte:zxr10_8900e:-:::::::*	0	OR

CVSS Version 2

Version
2.0

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

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
2.1

Severity
LOW

Exploitability Score
3.9

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
HIGH

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
4.4

Base Severity
MEDIUM

Exploitability Score
0.8

Impact Score
3.6

References

Reference URL	Reference Tags
http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014584	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-21724
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21724

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:21:11				Added to TrackCVE
2022-12-05 22:50:51	2021-02-26T03:15Z	2021-02-26T03:15:12	CVE Published Date	updated
2022-12-05 22:50:51		2021-03-04T13:49:02	CVE Modified Date	updated
2022-12-05 22:50:51		Analyzed	Vulnerability Status	updated