VulnerabilityModified
CVE-2019-19377
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and unmounting can lead to a use-after-free in btrfs_queue_work in fs/btrfs/async-thread.c.
HIGH 7.8EPSS 3.40%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and unmounting can lead to a use-after-free in btrfs_queue_work in fs/btrfs/async-thread.c.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 3.40% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel · netapp/active iq unified manager · netapp/cloud backup · netapp/steelstore cloud integrated storage · netapp/solidfire baseboard management controller
- Source
- cve@mitre.org
References
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19377Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory, VDB Entry
- https://usn.ubuntu.com/4367-1/Third Party Advisory
- https://usn.ubuntu.com/4369-1/Third Party Advisory
- https://usn.ubuntu.com/4414-1/Third Party Advisory
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19377Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory, VDB Entry
- https://usn.ubuntu.com/4367-1/Third Party Advisory
- https://usn.ubuntu.com/4369-1/Third Party Advisory
- https://usn.ubuntu.com/4414-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.