CVE-2019-19816
Vulnerability Summary
Timeline
Description
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.
CVSS Metrics
- v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- v2.0•HIGH•Score: 9.3AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS Trends
Current EPSS score: 3.29%• Percentile: 88%
Techniques & Countermeasures
- CWE-787•Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
Affected Systems
- canonical•ubuntu_linux
14.04 | 16.04 | 18.04
- debian•linux
< 5.2.6-1 | < 5.2.6-1 | < 5.2.6-1 | < 5.2.6-1
- ubuntu•linux
all | < 4.4.0-201.233 | < 4.15.0-109.110
- ubuntu•linux-aws
< 4.4.0-1085.89 | < 4.4.0-1121.135 | < 4.15.0-1077.81
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-fips
< 4.15.0-2022.22 | all
- ubuntu•linux-aws-hwe
< 4.15.0-1079.83~16.04.1
- ubuntu•linux-azure
< 4.15.0-1091.101~14.04.1 | < 4.15.0-1091.101~16.04.1 | all
- ubuntu•linux-azure-4.15
< 4.15.0-1091.101
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fde-5.15
< 5.15.0-1114.123~20.04.1
- ubuntu•linux-azure-fips
< 4.15.0-2006.7 | all
- ubuntu•linux-bluefield
all
- ubuntu•linux-fips
< 4.4.0-1055.61 | all | < 4.15.0-1037.42
- ubuntu•linux-gcp
< 4.15.0-1080.90~16.04.1 | all
- ubuntu•linux-gcp-4.15
< 4.15.0-1080.90
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all
- ubuntu•linux-gke
all
- ubuntu•linux-gke-4.15
< 4.15.0-1066.69
- ubuntu•linux-hwe
< 4.15.0-112.113~16.04.1 | < 5.3.0-26.28~18.04.1
- ubuntu•linux-hwe-edge
all | < 5.3.0-19.20~18.04.2
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1087.96 | < 4.15.0-1069.70
- ubuntu•linux-lts-xenial
< 4.4.0-201.233~14.04.1
- ubuntu•linux-oem
< 4.15.0-1091.101
- ubuntu•linux-oracle
< 4.15.0-1050.54~16.04.1 | < 4.15.0-1048.52
- ubuntu•linux-oracle-5.0
all
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1145.155 | < 4.15.0-1065.69 | all
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all
- ubuntu•linux-snapdragon
< 4.4.0-1149.159 | < 4.15.0-1083.91
- debian•debian_linux
9.0
- linux•linux_kernel
≥ 2.6.12, < 4.4.247 | ≥ 4.5, < 4.9.247 | ≥ 4.10, < 4.14.210 | ≥ 4.15, < 4.19.137 | ≥ 4.20, < 5.2
- netapp•active_iq_unified_manager
≥ 9.5
- netapp•aff_a400_firmware
na
- netapp•aff_a700s_firmware
na
- netapp•data_availability_services
na
- netapp•fas8300_firmware
na
- netapp•fas8700_firmware
na
- netapp•h610s_firmware
na
- netapp•hci_management_node
na
- netapp•solidfire
na
- netapp•steelstore_cloud_integrated_storage
na
References (12)
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19816
- https://security.netapp.com/advisory/ntap-20200103-0001/
- https://usn.ubuntu.com/4414-1/
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
- https://ubuntu.com/security/CVE-2019-19816
- https://ubuntu.com/security/notices/USN-4414-1
- https://ubuntu.com/security/notices/USN-4709-1
- https://ubuntu.com/security/notices/USN-4708-1
- https://www.cve.org/CVERecord?id=CVE-2019-19816
- https://security-tracker.debian.org/tracker/CVE-2019-19816