What is CVE-2023-21509?

CVE-2023-21509 is a medium-severity vulnerability in Samsung Blockchain Keystore, classified under Out-of-bounds Write. CVSS score: 6.7/10. Published 2023-05-04.

How severe is CVE-2023-21509?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Buffer overflow in Samsung Blockchain Keystore

CVE-2023-21509

Out-of-bounds Write vulnerability while processing BC_TUI_CMD_UPDATE_SCREEN in bc_tui trustlet from Samsung Blockchain Keystore prior to version 1.3.12.1 allows local attacker to execute arbitrary code.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (8.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Samsung Samsung_blockchain_keystore
Samsung Mobile Blockchain Keystore — versions unspecified

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

mobile.security@samsung.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-21509?: CVE-2023-21509 is a medium-severity vulnerability in Samsung Blockchain Keystore, classified under Out-of-bounds Write. CVSS score: 6.7/10. Published 2023-05-04.
How severe is CVE-2023-21509?: Medium severity. CVSS v3 base score is 6.7 out of 10.