{"id":"CVE-2018-20449","aliases":["BELL-CVE-2018-20449","DEBIAN-CVE-2018-20449","EUVD-2018-13004","GHSA-cx2c-r978-5vg7","UBUNTU-CVE-2018-20449"],"status":"published","title":"The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows...","description":"The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading \"callback=\" lines in a debugfs file.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00421,"percentile":0.36662,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2019-04-04T15:25:30Z","modified":"2026-10-23T18:03:56Z","fixes":[{"ecosystem":"Debian:12","package":"linux","fixed_in":["4.15.4-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"linux","fixed_in":["4.15.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"linux","fixed_in":["4.15.4-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"linux-azure","fixed_in":["4.15.0-1013.13~16.04.2"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"linux-gcp","fixed_in":["4.15.0-1014.14~16.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"linux-hwe","fixed_in":["4.15.0-24.26~16.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.4-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.4-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"linux-azure","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1013.13~16.04.2"}]}],"versions":["4.11.0-1009.9","4.11.0-1011.11","4.11.0-1013.13","4.11.0-1014.14","4.11.0-1015.15","4.11.0-1016.16","4.13.0-1005.7","4.13.0-1006.8","4.13.0-1007.9","4.13.0-1009.12","4.13.0-1011.14","4.13.0-1012.15","4.13.0-1014.17","4.13.0-1016.19","4.13.0-1018.21"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"linux-gcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1014.14~16.04.1"}]}],"versions":["4.10.0-1004.4","4.10.0-1006.6","4.10.0-1007.7","4.10.0-1008.8","4.10.0-1009.9","4.13.0-1002.5","4.13.0-1006.9","4.13.0-1007.10","4.13.0-1008.11","4.13.0-1011.15","4.13.0-1012.16","4.13.0-1013.17","4.13.0-1015.19","4.13.0-1017.21","4.13.0-1019.23"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"linux-hwe","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-24.26~16.04.1"}]}],"versions":["4.8.0-36.36~16.04.1","4.8.0-39.42~16.04.1","4.8.0-41.44~16.04.1","4.8.0-42.45~16.04.1","4.8.0-44.47~16.04.1","4.8.0-45.48~16.04.1","4.8.0-46.49~16.04.1","4.8.0-49.52~16.04.1","4.8.0-51.54~16.04.1","4.8.0-52.55~16.04.1","4.8.0-53.56~16.04.1","4.8.0-54.57~16.04.1","4.8.0-56.61~16.04.1","4.8.0-58.63~16.04.1","4.10.0-27.30~16.04.2","4.10.0-28.32~16.04.2","4.10.0-30.34~16.04.1","4.10.0-32.36~16.04.1","4.10.0-33.37~16.04.1","4.10.0-35.39~16.04.1","4.10.0-37.41~16.04.1","4.10.0-38.42~16.04.1","4.10.0-40.44~16.04.1","4.10.0-42.46~16.04.1","4.13.0-26.29~16.04.2","4.13.0-31.34~16.04.1","4.13.0-32.35~16.04.1","4.13.0-36.40~16.04.1","4.13.0-37.42~16.04.1","4.13.0-38.43~16.04.1","4.13.0-39.44~16.04.1","4.13.0-41.46~16.04.1","4.13.0-43.48~16.04.1","4.13.0-45.50~16.04.1"]},{"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":[{"introduced":"0"}]}],"versions":["5.13.0-1004.4","5.13.0-1006.6+22.04.1","5.13.0-1007.7+22.04.1","5.13.0-1010.11+22.04.1","5.15.0-1004.4","5.15.0-1005.5","5.15.0-1006.6","5.15.0-1007.7","5.15.0-1008.8","5.15.0-1011.12","5.15.0-1012.13","5.15.0-1014.16","5.15.0-1015.17","5.15.0-1016.18","5.15.0-1017.19","5.15.0-1018.21","5.15.0-1019.22","5.15.0-1020.23","5.15.0-1022.26","5.15.0-1023.27","5.15.0-1026.30","5.15.0-1027.31","5.15.0-1028.32"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"linux-raspi-realtime","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.8.0-2019.20"]}],"products":[{"vendor":"linux","product":"linux_kernel"},{"vendor":"netapp","product":"element_software_management_node"}],"references":[{"url":"https://elixir.bootlin.com/linux/v4.14.90/source/drivers/dma/qcom/hidma_dbg.c#L92","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://www.mail-archive.com/debian-security-tracker%40lists.debian.org/msg03808.html","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"https://security.netapp.com/advisory/ntap-20190502-0002/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20449"},{"url":"https://www.mail-archive.com/debian-security-tracker@lists.debian.org/msg03808.html"},{"url":"https://github.com/advisories/GHSA-cx2c-r978-5vg7"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2018-20449","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-20449","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-20449","tags":["report"]},{"url":"https://lore.kernel.org/lkml/CABXRUiRP8fHvGkO3T9AOFV=prVUACiCm2frbAEnG2v6UhrTw0A@mail.gmail.com/","tags":["report"]},{"url":"https://lists.debian.org/debian-security-tracker/2019/01/msg00029.html","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-20449","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-20449","description":"The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading \"callback=\" lines in a debugfs file.","status":"published","published":"2019-04-04T15:25:30Z","modified":"2024-08-05T11:58:19.359Z","updated_at":"2026-11-02T14:34:59.872731Z"}],"euvd":[{"id":"EUVD-2018-13004","description":"The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading \"callback=\" lines in a debugfs file.","status":"published","published":"2019-04-04T15:25:30Z","modified":"2024-08-05T11:58:19Z","updated_at":"2026-11-03T02:39:30.889297Z"}],"ghsa":[{"id":"GHSA-cx2c-r978-5vg7","title":"The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows...","description":"The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading \"callback=\" lines in a debugfs file.","status":"published","published":"2022-05-14T01:05:54Z","modified":"2023-02-02T05:03:14Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:51:36.097719Z"}],"nvd":[{"id":"CVE-2018-20449","description":"The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading \"callback=\" lines in a debugfs file.","status":"published","published":"2019-04-04T16:29:00.383Z","modified":"2026-06-17T01:52:51.827Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:04:55.136632Z"}],"osv":[{"id":"BELL-CVE-2018-20449","title":"CVE-2018-20449 does not affect BellSoft software","status":"withdrawn","published":"2019-04-04T16:29:00Z","modified":"2026-01-26T09:47:50.989449Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:14.701973Z"},{"id":"CVE-2018-20449","description":"The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading \"callback=\" lines in a debugfs file.","status":"published","published":"2019-04-04T16:29:00.383Z","modified":"2026-03-13T23:34:30.694418Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:09.145458Z"},{"id":"DEBIAN-CVE-2018-20449","description":"The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading \"callback=\" lines in a debugfs file.","status":"published","published":"2019-04-04T16:29:00.383Z","modified":"2026-10-23T18:03:56.603620142Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:30.57382Z"},{"id":"UBUNTU-CVE-2018-20449","description":"The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading \"callback=\" lines in a debugfs file.","status":"published","published":"2019-04-04T16:29:00Z","modified":"2025-10-24T04:47:18Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:17.91743Z"}]}}
