{"id":"CVE-2021-39636","details":"In do_ipt_get_ctl and do_ipt_set_ctl of ip_tables.c, there is a possible way to leak kernel information due to uninitialized data. This could lead to local information disclosure with system execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-120612905References: Upstream kernel","aliases":["A-120612905","PUB-A-120612905"],"modified":"2026-01-27T04:17:53.791950Z","published":"2021-12-15T19:15:15Z","withdrawn":"2026-01-27T04:17:53.791950Z","references":[{"type":"FIX","url":"https://source.android.com/security/bulletin/pixel/2021-12-01"}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N"}]}