CVE-2019-19813 - In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, a

CVE-2019-19813

Summary

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in __mutex_lock in kernel/locking/mutex.c. This is related to mutex_can_spin_on_owner in kernel/locking/mutex.c, __btrfs_qgroup_free_meta in fs/btrfs/qgroup.c, and btrfs_insert_delayed_items in fs/btrfs/delayed-inode.c.

References

Vulnerable Configurations

cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:*

CVSS

Base:	7.1 (as of 28-09-2020 - 16:15)
Impact:
Exploitability:

CWE

CWE-416

CAPEC

Access

Vector	Complexity	Authentication
NETWORK	MEDIUM	NONE

Impact

Confidentiality	Integrity	Availability
NONE	NONE	COMPLETE

cvss-vector via4

AV:N/AC:M/Au:N/C:N/I:N/A:C

refmap via4

confirm	https://security.netapp.com/advisory/ntap-20200103-0001/
misc	https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19813
mlist	[debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update
ubuntu	USN-4414-1

Last major update

28-09-2020 - 16:15

Published

17-12-2019 - 06:15

Last modified

28-09-2020 - 16:15