CVE-2021-25397

An improper access control vulnerability in TelephonyUI prior to SMR MAY-2021 Release 1 allows local attackers to write arbitrary files of telephony process via untrusted applications.

• https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/
  ExploitThird Party Advisory
• https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5
  Vendor Advisory
• https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/
  ExploitThird Party Advisory
• https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5
  Vendor Advisory