CVE-2021-25490 — MEDIUM (6.0)

Vulnerability Description

A keyblob downgrade attack in keymaster prior to SMR Oct-2021 Release 1 allows attacker to trigger IV reuse vulnerability with privileged process.

CVSS Score

6.0

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

LOW

Affected Products

Vendor	Product	Versions
Google	Android	9.0

Related Weaknesses (CWE)

CWE-287

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10Vendor Advisory
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10Vendor Advisory

FAQ

What is CVE-2021-25490?

CVE-2021-25490 is a vulnerability with a CVSS score of 6.0 (MEDIUM). A keyblob downgrade attack in keymaster prior to SMR Oct-2021 Release 1 allows attacker to trigger IV reuse vulnerability with privileged process.

How severe is CVE-2021-25490?

CVE-2021-25490 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-25490?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android.