ASB-A-205729183

See a problem?
Import Source
https://storage.googleapis.com/android-osv/ASB-A-205729183.json
JSON Data
https://api.osv.dev/v1/vulns/ASB-A-205729183
Aliases
  • A-205729183
  • CVE-2021-39675
Published
2022-02-01T00:00:00Z
Modified
2026-09-21T16:00:45Z
Summary
[none]
Details

In GKI_getbuf of gki_buffer.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

References

Affected packages

Android / platform/system/nfc

Package

Name
platform/system/nfc

Affected ranges

Type
ECOSYSTEM
Events
Introduced
12:0
Fixed
12:2022-02-01

Affected versions

Other
12

Ecosystem specific 

{
    "fixes":  [
        "https://android.googlesource.com/platform/system/nfc/+/92646b7ffc155efec6e9ed2e0753c6e62fb5ff6b"
    ],
    "severity":  "Critical",
    "spl":  "2022-02-01",
    "types":  [
        "EoP"
    ],
    "vanir_signatures":  [
        {
            "deprecated":  false,
            "digest":  {
                "line_hashes":  [
                    "288390722114287778546768584513148725603",
                    "31791538175672348154770622817844970845",
                    "233694777456824859479542176992205686209",
                    "53136747502931177756999941870448979321",
                    "227678348486699828512464673817066811975",
                    "251177702116177346323361254365922307350",
                    "252357863778430228943175558416913079077"
                ],
                "threshold":  0.9
            },
            "id":  "ASB-A-205729183-2f53f16c",
            "signature_type":  "Line",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/platform/system/nfc/+/92646b7ffc155efec6e9ed2e0753c6e62fb5ff6b",
            "target":  {
                "file":  "src/gki/common/gki_buffer.cc"
            }
        },
        {
            "deprecated":  false,
            "digest":  {
                "function_hash":  "262860658969548968702594415238425075122",
                "length":  2844
            },
            "id":  "ASB-A-205729183-aee00831",
            "signature_type":  "Function",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/platform/system/nfc/+/92646b7ffc155efec6e9ed2e0753c6e62fb5ff6b",
            "target":  {
                "file":  "src/gki/common/gki_buffer.cc",
                "function":  "GKI_getbuf"
            }
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/android-osv/ASB-A-205729183.json"