CVE-2021-3675

synaTEE.signed.dll Out-Of-Bounds Heap Write

Severity Score

7.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Improper Input Validation vulnerability in synaTEE.signed.dll of Synaptics Fingerprint Driver allows a local authorized attacker to overwrite a heap tag, with potential loss of confidentiality. This issue affects: Synaptics Synaptics Fingerprint Driver 5.1.xxx.26 versions prior to xxx=340 on x86/64; 5.2.xxxx.26 versions prior to xxxx=3541 on x86/64; 5.2.2xx.26 versions prior to xx=29 on x86/64; 5.2.3xx.26 versions prior to xx=25 on x86/64; 5.3.xxxx.26 versions prior to xxxx=3543 on x86/64; 5.5.xx.1058 versions prior to xx=44 on x86/64; 5.5.xx.1102 versions prior to xx=34 on x86/64; 5.5.xx.1116 versions prior to xx=14 on x86/64; 6.0.xx.1104 versions prior to xx=50 on x86/64; 6.0.xx.1108 versions prior to xx=31 on x86/64; 6.0.xx.1111 versions prior to xx=58 on x86/64.

Una vulnerabilidad de comprobación de entrada inapropiada en el archivo synaTEE.signed.dll de Synaptics Fingerprint Driver, permite a un atacante local autorizado sobrescribir una etiqueta de la pila, con posible pérdida de confidencialidad. Este problema afecta a: Synaptics Fingerprint Driver versiones: 5.1.xxx.26 versiones anteriores a xxx=340 en x86/64; 5.2.xxxx.26 versiones anteriores a xxxx=3541 en x86/64; 5.2.2xx.26 versiones anteriores a xx=29 en x86/64; 5.2.3xx.26 versiones anteriores a xx=25 en x86/64; 5.3.xxxx.26 versiones anteriores a xxxx=3543 en x86/64; 5.5.xx.1058 versiones anteriores a xx=44 en x86/64; 5.5.xx.1102 versiones anteriores a xx=34 en x86/64; 5.5.xx.1116 versiones anteriores a xx=14 en x86/64; 6.0.xx.1104 versiones anteriores a xx=50 en x86/64; 6.0.xx.1108 versiones anteriores a xx=31 en x86/64; 6.0.xx.1111 versiones anteriores a xx=58 en x86/64

*Credits: Synaptics would like to thank Tobias Cloosters and Johannes Willbold for reporting this issue.

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-02 CVE Reserved
2022-06-16 CVE Published
2023-03-08 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-787: Out-of-bounds Write

CAPEC

References (3)

URL	Tag	Source
https://support.lenovo.com/us/en/product_security/LEN-68054	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://support.hp.com/us-en/document/ish_6411153-6411191-16/hpsbhf03797	2023-06-26

URL	Date	SRC
https://synaptics.com/sites/default/files/2022-06/fingerprint-driver-SGX-security-brief-2022-06-14.pdf	2023-06-26

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Synaptics Search vendor "Synaptics"		Fingerprint Driver Search vendor "Synaptics" for product "Fingerprint Driver"				>= 5.1.000.26 < 5.1.340.26 Search vendor "Synaptics" for product "Fingerprint Driver" and version " >= 5.1.000.26 < 5.1.340.26"		-		Affected
Synaptics Search vendor "Synaptics"		Fingerprint Driver Search vendor "Synaptics" for product "Fingerprint Driver"				>= 5.2.0000.26 < 5.2.3541.26 Search vendor "Synaptics" for product "Fingerprint Driver" and version " >= 5.2.0000.26 < 5.2.3541.26"		-		Affected
Synaptics Search vendor "Synaptics"		Fingerprint Driver Search vendor "Synaptics" for product "Fingerprint Driver"				>= 5.2.200.26 < 5.2.229.26 Search vendor "Synaptics" for product "Fingerprint Driver" and version " >= 5.2.200.26 < 5.2.229.26"		-		Affected
Synaptics Search vendor "Synaptics"		Fingerprint Driver Search vendor "Synaptics" for product "Fingerprint Driver"				>= 5.2.300.26 < 5.2.325.26 Search vendor "Synaptics" for product "Fingerprint Driver" and version " >= 5.2.300.26 < 5.2.325.26"		-		Affected
Synaptics Search vendor "Synaptics"		Fingerprint Driver Search vendor "Synaptics" for product "Fingerprint Driver"				>= 5.3.0000.26 < 5.3.3543.26 Search vendor "Synaptics" for product "Fingerprint Driver" and version " >= 5.3.0000.26 < 5.3.3543.26"		-		Affected
Synaptics Search vendor "Synaptics"		Fingerprint Driver Search vendor "Synaptics" for product "Fingerprint Driver"				>= 5.5.00.1058 < 5.5.44.1058 Search vendor "Synaptics" for product "Fingerprint Driver" and version " >= 5.5.00.1058 < 5.5.44.1058"		-		Affected
Synaptics Search vendor "Synaptics"		Fingerprint Driver Search vendor "Synaptics" for product "Fingerprint Driver"				>= 5.5.00.1102 < 5.5.34.1102 Search vendor "Synaptics" for product "Fingerprint Driver" and version " >= 5.5.00.1102 < 5.5.34.1102"		-		Affected
Synaptics Search vendor "Synaptics"		Fingerprint Driver Search vendor "Synaptics" for product "Fingerprint Driver"				>= 5.5.00.1116 < 5.5.14.1116 Search vendor "Synaptics" for product "Fingerprint Driver" and version " >= 5.5.00.1116 < 5.5.14.1116"		-		Affected
Synaptics Search vendor "Synaptics"		Fingerprint Driver Search vendor "Synaptics" for product "Fingerprint Driver"				>= 6.0.00.1111 < 6.0.58.1111 Search vendor "Synaptics" for product "Fingerprint Driver" and version " >= 6.0.00.1111 < 6.0.58.1111"		-		Affected