ASB-A-196046570

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Import Source
https://storage.googleapis.com/android-osv/ASB-A-196046570.json
JSON Data
https://api.osv.dev/v1/vulns/ASB-A-196046570
Aliases
  • A-196046570
  • CVE-2021-0961
Published
2021-12-01T00:00:00Z
Modified
2026-06-16T15:04:57.126039127Z
Summary
[none]
Details

In quotaprocwrite of xt_quota2.c, there is a possible way to read kernel memory due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.

References

Affected packages

Android / :linux_kernel:

Package

Name
:linux_kernel:

Affected ranges

Type
ECOSYSTEM
Events
Introduced
:0
Fixed
:2021-12-05

Affected versions

Other
Kernel

Ecosystem specific 

{
    "types": [
        "ID"
    ],
    "severity": "Moderate",
    "fixes": [
        "https://android.googlesource.com/kernel/common/+/e113eb454e92",
        "https://android.googlesource.com/kernel/common/+/60a4c35570d9",
        "https://android.googlesource.com/kernel/common/+/4b05a506bda0"
    ],
    "spl": "2021-12-05",
    "vanir_signatures": [
        {
            "deprecated": false,
            "target": {
                "file": "net/netfilter/xt_quota2.c",
                "function": "quota_proc_write"
            },
            "signature_type": "Function",
            "digest": {
                "function_hash": "331079331341337927145497544267760580337",
                "length": 465.0
            },
            "signature_version": "v1",
            "source": "https://android.googlesource.com/kernel/common/+/4b05a506bda0",
            "id": "ASB-A-196046570-8bf4814e"
        },
        {
            "deprecated": false,
            "target": {
                "file": "net/netfilter/xt_quota2.c"
            },
            "source": "https://android.googlesource.com/kernel/common/+/e113eb454e92",
            "digest": {
                "line_hashes": [
                    "300791232439875133632716496871912264620",
                    "70038903204576172867030549493066166263",
                    "333088528853129269023570041671620429249",
                    "42207680203461640924637962347689161127",
                    "300791232439875133632716496871912264620",
                    "70038903204576172867030549493066166263",
                    "333088528853129269023570041671620429249",
                    "218940457137836909070047315208247151542"
                ],
                "threshold": 0.9
            },
            "id": "ASB-A-196046570-9601096f",
            "signature_type": "Line",
            "signature_version": "v1"
        },
        {
            "deprecated": false,
            "target": {
                "file": "net/netfilter/xt_quota2.c"
            },
            "signature_type": "Line",
            "digest": {
                "line_hashes": [
                    "153322424961026016917606699709339014016",
                    "185668712431662013693342578498774993036",
                    "25905861964383034273808152654118250552",
                    "195120841472415210120064218568328695493"
                ],
                "threshold": 0.9
            },
            "signature_version": "v1",
            "source": "https://android.googlesource.com/kernel/common/+/4b05a506bda0",
            "id": "ASB-A-196046570-ac70b66c"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/android-osv/ASB-A-196046570.json"