{"id":"PUB-A-246194233","details":"In ufdt_get_node_by_path_len of ufdt_convert.c, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-246194233","CVE-2022-20555"],"modified":"2026-09-18T15:47:37.392928379Z","published":"2022-12-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2022-12-01"},{"type":"FIX","url":"https://android.googlesource.com/platform/system/libufdt/+/234b63776ec124bbd9f5e19b7fd1504966e2703a"}],"affected":[{"package":{"name":"platform/system/libufdt","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13:0"},{"fixed":"13:2022-12-01"}]}],"versions":["13"],"ecosystem_specific":{"vanir_signatures":[{"target":{"file":"ufdt_convert.c","function":"ufdt_get_node_by_path_len"},"deprecated":false,"digest":{"length":633,"function_hash":"31534112951051885961626345987427287572"},"id":"PUB-A-246194233-1fd2c41a","match_only_versions":["13"],"signature_type":"Function","signature_version":"v1","source":"https://android.googlesource.com/platform/system/libufdt/+/234b63776ec124bbd9f5e19b7fd1504966e2703a"},{"id":"PUB-A-246194233-5390f2ae","match_only_versions":["13"],"signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/platform/system/libufdt/+/234b63776ec124bbd9f5e19b7fd1504966e2703a","target":{"file":"ufdt_convert.c"},"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["83757736211675648096187484761578628180","226246856054325188365302774104751738140","221982115710785921729572647795329715083","297678899782898885432409520256776963749","308684250075690242281098377585041055707","264372357079069708951312261234024557209","157471818692844770083447603081116857886","182709770165152014563914828672853833918","267901867295275700136597283893710993329"]}}],"fixes":["https://android.googlesource.com/platform/system/libufdt/+/234b63776ec124bbd9f5e19b7fd1504966e2703a"],"severity":"Moderate","spl":"2022-12-01","types":["ID"]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/PUB-A-246194233.json"}}],"schema_version":"1.9.0"}