{"id":"CVE-2019-1999","aliases":["DEBIAN-CVE-2019-1999","DSA-4495-1","EUVD-2019-10556","GHSA-h74g-q6cf-5qxm","UBUNTU-CVE-2019-1999"],"status":"published","title":"In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper...","description":"In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-120025196.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00807,"percentile":0.57075,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-415"],"published":"2019-02-28T00:00:00Z","modified":"2026-09-21T07:03:16Z","exploits":[{"source":"exploitdb","id":"EDB-46357","title":"Android - binder Use-After-Free of VMA via race Between reclaim and munmap","type":"dos","platform":"android","date":"2019-02-12","verified":true,"url":"https://www.exploit-db.com/exploits/46357"}],"fixes":[{"ecosystem":"Debian:12","package":"linux","fixed_in":["5.2.6-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"linux","fixed_in":["5.2.6-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"linux","fixed_in":["5.2.6-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:FIPS-updates:18.04:LTS","package":"linux-aws-fips","fixed_in":["4.15.0-2018.18"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:FIPS-updates:18.04:LTS","package":"linux-azure-fips","fixed_in":["4.15.0-2006.7"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.6-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.6-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.6-1"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.19.37-5+deb10u2"}]}],"versions":["4.19.37-5","4.19.37-5+deb10u1","4.19.37-5+deb10u2~bpo9+1"],"bundled":12},{"source":"osv","ecosystem":"Ubuntu:Pro:FIPS-updates:18.04:LTS","package":"linux-aws-fips","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-2018.18"}]}],"versions":["4.15.0-2000.4"]},{"source":"osv","ecosystem":"Ubuntu:Pro:FIPS-updates:18.04:LTS","package":"linux-azure-fips","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-2006.7"}]}],"versions":["4.15.0-1002.2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:FIPS:18.04:LTS","package":"linux-aws-fips","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.15.0-2000.4"]},{"source":"osv","ecosystem":"Ubuntu:Pro:FIPS:18.04:LTS","package":"linux-azure-fips","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.15.0-1002.2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:FIPS:18.04:LTS","package":"linux-gcp-fips","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.15.0-1001.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-azure-fde","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.0-1063.66+cvm2.2","5.4.0-1063.66+cvm3.2","5.4.0-1064.67+cvm1.1","5.4.0-1065.68+cvm2.1","5.4.0-1067.70+cvm1.1","5.4.0-1068.71+cvm1.1","5.4.0-1069.72+cvm1.1","5.4.0-1070.73+cvm1.1","5.4.0-1072.75+cvm1.1","5.4.0-1073.76+cvm1.1","5.4.0-1074.77+cvm1.1","5.4.0-1076.79+cvm1.1","5.4.0-1078.81+cvm1.1","5.4.0-1080.83+cvm1.1","5.4.0-1083.87+cvm1.1","5.4.0-1085.90+cvm1.1","5.4.0-1085.90+cvm2.1","5.4.0-1086.91+cvm1.1","5.4.0-1089.94+cvm1.2","5.4.0-1090.95+cvm1.1","5.4.0-1091.96+cvm1.1","5.4.0-1092.97+cvm1.1","5.4.0-1095.101+cvm1.1","5.4.0-1098.104+cvm1.1","5.4.0-1100.106+cvm1.1","5.4.0-1103.109+cvm1.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-gke","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.0-1033.35","5.4.0-1035.37","5.4.0-1036.38","5.4.0-1037.39","5.4.0-1039.41","5.4.0-1041.43","5.4.0-1042.44","5.4.0-1043.45","5.4.0-1044.46","5.4.0-1046.48","5.4.0-1049.52","5.4.0-1051.54","5.4.0-1052.55","5.4.0-1053.56","5.4.0-1054.57","5.4.0-1055.58","5.4.0-1056.59","5.4.0-1057.60","5.4.0-1059.62","5.4.0-1061.64","5.4.0-1062.65","5.4.0-1063.66","5.4.0-1065.68","5.4.0-1066.69","5.4.0-1067.70","5.4.0-1068.71","5.4.0-1071.76","5.4.0-1072.77","5.4.0-1074.79","5.4.0-1076.82","5.4.0-1078.84","5.4.0-1080.86","5.4.0-1081.87","5.4.0-1083.89","5.4.0-1084.90","5.4.0-1086.93","5.4.0-1087.94","5.4.0-1090.97","5.4.0-1091.98","5.4.0-1094.101","5.4.0-1095.102","5.4.0-1096.103","5.4.0-1097.104","5.4.0-1098.105","5.4.0-1099.106","5.4.0-1100.107","5.4.0-1101.108","5.4.0-1102.109","5.4.0-1103.110","5.4.0-1104.111","5.4.0-1105.112"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-raspi2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.0-1007.8","5.3.0-1014.16","5.3.0-1015.17","5.3.0-1017.19","5.4.0-1004.4","5.4.0-1006.6"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"linux-riscv","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.0-24.28","5.4.0-26.30","5.4.0-27.31","5.4.0-28.32","5.4.0-30.34","5.4.0-31.35","5.4.0-33.37","5.4.0-34.38","5.4.0-36.41","5.4.0-37.42","5.4.0-39.44","5.4.0-40.45"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"linux-intel-iot-realtime","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.0-1073.75"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"linux-realtime","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.0-1032.35"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"linux-riscv","ranges":[{"type":"ECOSYSTEM","events"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Link","web"]},{"url":"https://source.android.com/security/bulletin/2019-02-01","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://www.exploit-db.com/exploits/46357/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","Third Party Advisory","VDB Entry","evidence","report"]},{"url":"https://usn.ubuntu.com/3979-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","Third Party Advisory","advisory"]},{"url":"https://www.debian.org/security/2019/dsa-4495","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://seclists.org/bugtraq/2019/Aug/13","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1999"},{"url":"https://github.com/advisories/GHSA-h74g-q6cf-5qxm"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-1999","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-1999","tags":["report"]},{"url":"https://lore.kernel.org/lkml/20190301230606.8302-1-tkjos@google.com/","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-3979-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-1999","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-1999","description":"In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-120025196.","status":"published","published":"2019-02-28T17:00:00Z","modified":"2024-09-17T03:17:33.855Z","updated_at":"2026-11-02T14:20:25.661187Z"}],"euvd":[{"id":"EUVD-2019-10556","description":"In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-120025196.","status":"published","published":"2019-02-28T17:00:00Z","modified":"2024-09-17T03:17:33Z","updated_at":"2026-11-03T00:28:33.372362Z"}],"ghsa":[{"id":"GHSA-h74g-q6cf-5qxm","title":"In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper...","description":"In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-120025196.","status":"published","published":"2022-04-30T00:02:14Z","modified":"2023-01-30T05:04:22Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:47:01.801326Z"}],"nvd":[{"id":"CVE-2019-1999","description":"In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-120025196.","status":"published","published":"2019-02-28T17:29:00.99Z","modified":"2026-06-17T02:29:48.927Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:05:07.268578Z"}],"osv":[{"id":"CVE-2019-1999","description":"In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-120025196.","status":"published","published":"2019-02-28T17:29:00.99Z","modified":"2026-03-15T22:28:07.519944Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:12.010761Z"},{"id":"DEBIAN-CVE-2019-1999","description":"In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-120025196.","status":"published","published":"2019-02-28T17:29:00.99Z","modified":"2026-09-21T07:03:16.875680059Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:32.221385Z"},{"id":"UBUNTU-CVE-2019-1999","description":"In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-120025196.","status":"published","published":"2019-02-28T00:00:00Z","modified":"2026-09-09T14:33:26.79521389Z","cvss":[{"version":"4.0","score":7.3,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:21.213407Z"},{"id":"DSA-4495-1","title":"linux - security update","status":"published","published":"2019-08-10T00:00:00Z","modified":"2026-03-09T02:09:25.405643Z","updated_at":"2026-11-02T15:46:16.862196Z"}]}}