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High severity · published Jul 22, 2020
CVE-2019-18619
Incorrect parameter validation in the synaTee component of Synaptics WBF drivers using an SGX enclave (all versions prior to 2019-11-15) allows a local user to execute arbitrary…
7.8
CVSS
0.5%
EPSS
No
On KEV
Description
Incorrect parameter validation in the synaTee component of Synaptics WBF drivers using an SGX enclave (all versions prior to 2019-11-15) allows a local user to execute arbitrary code in the enclave (that can compromise confidentiality of enclave data) via APIs that accept invalid pointers.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TA
Thankpad A475 Firmware · Lenovo
before 5.02.3539.0026 · source: NVD
TA
Thankpad A485 Firmware · Lenovo
before 5.03.3542.0026 · source: NVD
T2
Thinkpad 25 Firmware · Lenovo
before 5.2.3540.26 · source: NVD
TE
Thinkpad E480 Firmware · Lenovo
before 5.2.321.26 · source: NVD
TE
Thinkpad E485 Firmware · Lenovo
before 5.2.321.26 · source: NVD
TE
Thinkpad E490 Firmware · Lenovo
before 5.2.321.26 · source: NVD
TE
Thinkpad E490s Firmware · Lenovo
before 5.2.321.26 · source: NVD
TE
Thinkpad E580 Firmware · Lenovo
before 5.2.321.26 · source: NVD
TE
Thinkpad E585 Firmware · Lenovo
before 5.2.321.26 · source: NVD
TE
Thinkpad E590 Firmware · Lenovo
before 5.2.321.26 · source: NVD
TL
Thinkpad L480 Firmware · Lenovo
before 5.3.3542.26 · source: NVD
TL
Thinkpad L580 Firmware · Lenovo
before 5.3.3542.26 · source: NVD
Affected product
TA
Thankpad A475 Firmware
Lenovo
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-18619
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-18619
Patch
https://support.hp.com/hk-en/document/c06696568
Patch
https://support.lenovo.com/us/en/product_security/LEN-31372
Vendor Advisory
https://www.synaptics.com/company/blog/
Vendor Advisory
https://www.synaptics.com/sites/default/files/fingerprint-driver-SGX-security-brief-2020-07-14.pdf
Vendor Advisory
https://www.syssec.wiwi.uni-due.de/en/research/research-projects/analysis-of-tee-software/
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