netVigilance Vulnerability intelligence since 2004
CVE-2020-0069 · netVigilance record NV21-0089

Mediatek Multiple Chipsets Insufficient Input Validation

past due

What to do

Apply updates per vendor instructions.

CISA deadline 2022-05-03 · passed 4 years 4 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA

What happened

Multiple MediaTek chipsets contain an insufficient input validation vulnerability and have missing SELinux restrictions in the Command Queue drivers ioctl handlers. This causes an out-of-bounds write leading to privilege escalation. This vulnerability was observed chained with CVE-2019-2215 and CVE-2020-0041 under exploit chain "AbstractEmu."

Who is affected

MediaTek Multiple Chipsets. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.

Weakness class: CWE-787.

Timeline

  1. Added to CISA KEVExploitation in the wild confirmed by CISA
  2. CISA remediation deadlinepassed 4 years 4 months ago

Sources