VulnerabilityModified

CVE-2019-19318

In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags returns an already freed pointer,

MEDIUM 4.4EPSS 0.65%

Does this matter?

Lower severity and a low EPSS score (0.65%). Track it; it rarely justifies an emergency change on its own.

Description

CVSS 3.1: 4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.65% probability · 49th percentile
CISA KEV: Not listed
Weakness: CWE-416
Affected: linux/linux kernel · opensuse/leap · canonical/ubuntu linux · debian/debian linux · netapp/active iq unified manager · netapp/data availability services · netapp/hci management node · netapp/solidfire · netapp/steelstore cloud integrated storage · netapp/aff a700s firmware · netapp/fas8300 firmware · netapp/fas8700 firmware · netapp/aff a400 firmware · netapp/h610s firmware
Source: cve@mitre.org

References

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing List, Third Party Advisory
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19318Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
https://usn.ubuntu.com/4414-1/Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing List, Third Party Advisory
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19318Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
https://usn.ubuntu.com/4414-1/Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.