CVE-2021-0942

CVSS V2 None CVSS V3 Critical 9.8
Description
The path in this case is a little bit convoluted. The end result is that via an ioctl an untrusted app can control the ui32PageIndex offset in the expression:sPA.uiAddr = page_to_phys(psOSPageArrayData->pagearray[ui32PageIndex]);With the current PoC this crashes as an OOB read. However, given that the OOB read value is ending up as the address field of a struct I think i seems plausible that this could lead to an OOB write if the attacker is able to cause the OOB read to pull an interesting kernel address. Regardless if this is a read or write, it is a High severity issue in the kernel.Product: AndroidVersions: Android SoCAndroid ID: A-238904312
Overview
  • CVE ID
  • CVE-2021-0942
  • Assigner
  • security@android.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-09-13T20:15:08
  • Last Modified Date
  • 2022-09-16T18:50:57
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:google:android:-:*:*:*:*:*:*:* 1 OR
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
History
Created Old Value New Value Data Type Notes
2022-09-13 21:00:08 Added to TrackCVE