CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2019-19448
High (7.8). EPSS 2.1% chance of exploitation in the next 30 days.
In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.
Severity
- EPSS
- 2.1% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)
- CWE
- CWE-416
- Published
- Modified
- Record from
- the NVD, synced
Affected
- canonical:ubuntu_linux
- debian:debian_linux
- linux:linux_kernel
- netapp:a700s_firmware
- netapp:active_iq_unified_manager
- netapp:aff_8300_firmware
- netapp:aff_8700_firmware
- netapp:aff_a400_firmware
- netapp:cloud_backup
- netapp:data_availability_services
- netapp:fas_8300_firmware
- netapp:fas_8700_firmware
- netapp:fas_a400_firmware
- netapp:h610s_firmware
- netapp:hci_management_node
- netapp:solidfire
- netapp:solidfire_baseboard_management_controller_firmware
- netapp:steelstore_cloud_integrated_storage
References
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
- https://security.netapp.com/advisory/ntap-20200103-0001/