CVE-2019-19377

moderate-risk
Published 2019-11-29

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.

Do I need to act?

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0.39% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (5)

Affected Vendors

Linux Netapp

References (12)

Exploit https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19377
Mailing List https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
Third Party Advisory https://security.netapp.com/advisory/ntap-20200103-0001/
Third Party Advisory https://usn.ubuntu.com/4367-1/
Third Party Advisory https://usn.ubuntu.com/4369-1/
Third Party Advisory https://usn.ubuntu.com/4414-1/
Exploit https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19377
Mailing List https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
Third Party Advisory https://security.netapp.com/advisory/ntap-20200103-0001/
Third Party Advisory https://usn.ubuntu.com/4367-1/
Third Party Advisory https://usn.ubuntu.com/4369-1/
Third Party Advisory https://usn.ubuntu.com/4414-1/
37
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 1/34 · Minimal
Exposure 12/34 · Low