{"id":"CVE-2022-20238","aliases":["A-233154555","ASB-A-233154555","EUVD-2022-25498","GHSA-94vg-wrxf-f4p9","U-1883892"],"status":"published","title":"'remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area),...","description":"'remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area), and because the 'vma-\u003evm_page_prot' can also be controlled by userspace, so userspace may map the kernel area to be writable, which is easy to be exploitedProduct: AndroidVersions: Android SoCAndroid ID: A-233154555","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.0056,"percentile":0.46965,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119"],"published":"2022-07-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":":unknown:","fixed_in":["SoCVersion:2022-07-05"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"SoCVersion:0"},{"fixed":"SoCVersion:2022-07-05"}]}],"versions":["SoCVersion"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2022-07-01","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-20238"},{"url":"https://github.com/advisories/GHSA-94vg-wrxf-f4p9"}],"sources":{"cve":[{"id":"CVE-2022-20238","description":"'remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area), and because the 'vma-\u003evm_page_prot' can also be controlled by userspace, so userspace may map the kernel area to be writable, which is easy to be exploitedProduct: AndroidVersions: Android SoCAndroid ID: A-233154555","status":"published","published":"2022-07-13T18:23:46Z","modified":"2024-08-03T02:02:31.007Z","updated_at":"2026-11-02T14:34:24.971323Z"}],"euvd":[{"id":"EUVD-2022-25498","description":"'remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area), and because the 'vma-\u003evm_page_prot' can also be controlled by userspace, so userspace may map the kernel area to be writable, which is easy to be exploitedProduct: AndroidVersions: Android SoCAndroid ID: A-233154555","status":"published","published":"2022-07-13T18:23:46Z","modified":"2024-08-03T02:02:31Z","updated_at":"2026-11-03T03:25:55.413177Z"}],"ghsa":[{"id":"GHSA-94vg-wrxf-f4p9","title":"'remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area),...","description":"'remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area), and because the 'vma-\u003evm_page_prot' can also be controlled by userspace, so userspace may map the kernel area to be writable, which is easy to be exploitedProduct: AndroidVersions: Android SoCAndroid ID: A-233154555","status":"published","published":"2022-07-14T00:00:16Z","modified":"2023-01-27T05:05:48Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:42:46.624086Z"}],"nvd":[{"id":"CVE-2022-20238","description":"'remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area), and because the 'vma-\u003evm_page_prot' can also be controlled by userspace, so userspace may map the kernel area to be writable, which is easy to be exploitedProduct: AndroidVersions: Android SoCAndroid ID: A-233154555","status":"published","published":"2022-07-13T19:15:09.57Z","modified":"2026-06-17T04:23:56.683Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:07:23.322724Z"}],"osv":[{"id":"ASB-A-233154555","description":"'remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area), and because the 'vma-\u003evm_page_prot' can also be controlled by userspace, so userspace may map the kernel area to be writable, which is easy to be exploited","status":"published","published":"2022-07-01T00:00:00Z","modified":"2026-11-10T17:02:23.040266809Z","updated_at":"2026-11-09T17:04:22.742827Z"}]}}