{"id":"PUB-A-197327688", "published":"2021-12-01T00:00:00Z", "modified":"2026-05-01T15:24:27.653932157Z", "aliases":["CVE-2021-1008", "A-197327688"], "details":"In addSubInfo of SubscriptionController.java, there is a possible way to force the user to make a factory reset due to a logic error in the code. This could lead to local denial of service with System execution privileges needed. User interaction is not needed for exploitation.", "affected":[{"package":{"name":"platform/frameworks/opt/telephony", "ecosystem":"Android"}, "ranges":[{"type":"ECOSYSTEM", "events":[{"introduced":"12:0"}, {"fixed":"12:2021-12-01"}]}], "versions":["12"], "ecosystem_specific":{"fixes":["https://android.googlesource.com/platform/frameworks/opt/telephony/+/14be358a42baec86a455eb29f5bfd7b199f1f723"], "severity":"Moderate", "spl":"2021-12-01", "types":["DoS"], "vanir_signatures":[{"deprecated":false, "digest":{"function_hash":"289724749186343298368526051680267370590", "length":4953}, "id":"PUB-A-197327688-9ac659e3", "signature_type":"Function", "signature_version":"v1", "source":"https://android.googlesource.com/platform/frameworks/opt/telephony/+/14be358a42baec86a455eb29f5bfd7b199f1f723", "target":{"file":"src/java/com/android/internal/telephony/SubscriptionController.java", "function":"addSubInfo"}}, {"deprecated":false, "digest":{"line_hashes":["166883894788935765100559735328696763720", "191950681679039113004030602475493243212", "19634598851628924640678288177587335525", "275010079118535937682695609381801818966", "52059141820200656844085523289727897936", "225182137329544760174283786349385752117", "221478029353754719531396848054004658837", "169136381970389169926388510551420767203", "237170297472107590320738408318786194047", "93920528443875874632570692988165181557", "279362122725990476828261228767286683029", "225225310980515726818384730943480324931"], "threshold":0.9}, "id":"PUB-A-197327688-d7c8e589", "signature_type":"Line", "signature_version":"v1", "source":"https://android.googlesource.com/platform/frameworks/opt/telephony/+/14be358a42baec86a455eb29f5bfd7b199f1f723", "target":{"file":"src/java/com/android/internal/telephony/SubscriptionController.java"}}]}}], "references":[{"type":"ADVISORY", "url":"https://source.android.com/security/bulletin/2021-12-01"}, {"type":"FIX", "url":"https://android.googlesource.com/platform/frameworks/opt/telephony/+/14be358a42baec86a455eb29f5bfd7b199f1f723"}]}