CVE-2019-18885

Published: Nov 14, 2019Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

fs/btrfs/volumes.c in the Linux kernel before 5.1 allows a btrfs_verify_dev_extents NULL pointer dereference via a crafted btrfs image because fs_devices->devices is mishandled within find_device, aka CID-09ba3bc9dd15.

Affected (1)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 5.1

Related CWEs

CWE-476

NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

References (24)

http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LSN-0062-1.html

Source: cve@mitre.org

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=09ba3bc9dd150457c506e4661380a6183af651c1

Source: cve@mitre.org

PatchThird Party Advisory

https://github.com/bobfuzzer/CVE-2019-18885

Source: cve@mitre.org

ExploitThird Party Advisory

https://github.com/torvalds/linux/commit/09ba3bc9dd150457c506e4661380a6183af651c1

Source: cve@mitre.org

PatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html

Source: cve@mitre.org

https://security.netapp.com/advisory/ntap-20191205-0001/

Source: cve@mitre.org

https://usn.ubuntu.com/4254-1/

Source: cve@mitre.org

https://usn.ubuntu.com/4254-2/

Source: cve@mitre.org

https://usn.ubuntu.com/4258-1/

Source: cve@mitre.org

https://usn.ubuntu.com/4287-1/

Source: cve@mitre.org

https://usn.ubuntu.com/4287-2/

Source: cve@mitre.org

https://www.oracle.com/security-alerts/cpuApr2021.html

Source: cve@mitre.org

http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LSN-0062-1.html