{"id":"CVE-2022-20239","aliases":["A-233972091","ASB-A-233972091","EUVD-2022-25499","GHSA-px2h-r39c-38r8","U-1883877"],"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-233972091","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":"2026-11-09","score":0.00299,"percentile":0.22789,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-269","CWE-610"],"published":"2022-08-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":":unknown:","fixed_in":["SoCVersion:2022-08-05"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"SoCVersion:0"},{"fixed":"SoCVersion:2022-08-05"}]}],"versions":["SoCVersion"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2022-08-01","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-20239"},{"url":"https://github.com/advisories/GHSA-px2h-r39c-38r8"}],"sources":{"cve":[{"id":"CVE-2022-20239","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-233972091","status":"published","published":"2022-08-09T20:20:38Z","modified":"2025-10-20T17:53:05.224Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium","assessor":"adp"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:34:24.234074Z"}],"euvd":[{"id":"EUVD-2022-25499","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-233972091","status":"published","published":"2022-08-09T20:20:38Z","modified":"2025-10-20T17:53:05Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T20:31:29.921127Z"}],"ghsa":[{"id":"GHSA-px2h-r39c-38r8","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-233972091","status":"published","published":"2022-08-11T00:00:16Z","modified":"2025-10-20T18:30:29Z","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-269","CWE-610"],"updated_at":"2026-11-02T15:04:01.823376Z"}],"nvd":[{"id":"CVE-2022-20239","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-233972091","status":"published","published":"2022-08-10T20:15:26.33Z","modified":"2026-06-17T04:23:56.783Z","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":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-610","CWE-269"],"updated_at":"2026-11-02T14:07:24.750124Z"}],"osv":[{"id":"ASB-A-233972091","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":"2022-08-01T00:00:00Z","modified":"2026-11-09T16:40:10.884737887Z","updated_at":"2026-11-09T17:04:22.742827Z"}]}}