CVE-2019-19813

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.

Published: Dec 17, 2019
Updated: Apr 13, 2023
CVE: CVE-2019-19813
Severity: Medium
Exploit:

CVSS v3:

Severity: Medium
Score: 5.5
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2:

Severity: High
Score: 7.1
AV:N/AC:M/Au:N/C:N/I:N/A:C

CWEs:

CWE-416

Affected Software
References

Software	From	Fixed in
linux / linux_kernel	5.0.21	5.0.21.x
canonical / ubuntu_linux	16.04	16.04.x
canonical / ubuntu_linux	18.04	18.04.x
canonical / ubuntu_linux	14.04	14.04.x
debian / debian_linux	9.0	9.0.x
netapp / active_iq_unified_manager	9.5	9.5.x

https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19813
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
https://security.netapp.com/advisory/ntap-20200103-0001/
https://usn.ubuntu.com/4414-1/

Vulnerability Database

CVE-2019-19813

Deep Security Visibility Without the Complexity