ASB-A-238904312

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Import Source
https://storage.googleapis.com/android-osv/ASB-A-238904312.json
JSON Data
https://api.osv.dev/v1/vulns/ASB-A-238904312
Aliases
  • A-238904312
  • CVE-2021-0942
Published
2022-09-01T00:00:00Z
Modified
2026-04-30T15:48:46.890647Z
Summary
[none]
Details

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 = pagetophys(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.

References

Affected packages

Android / :unknown:

Package

Name
:unknown:

Affected ranges

Type
ECOSYSTEM
Events
Introduced
SoCVersion:0
Fixed
SoCVersion:2022-09-05

Affected versions

Other
SoCVersion

Ecosystem specific 

{
    "severity": "High",
    "types": [
        "EoP"
    ],
    "spl": "2022-09-05"
}

Database specific

source 
"https://storage.googleapis.com/android-osv/ASB-A-238904312.json"