CVE-2019-18885

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

El archivo fs/btrfs/volumes.c en el kernel de Linux versiones anteriores a la versión 5.1, permite una desreferencia del puntero NULL de la función btrfs_verify_dev_extents por medio de una imagen btrfs especialmente diseñada porque fs_devices-)devices es manejada inapropiadamente dentro de find_device, también se conoce como CID-09ba3bc9dd15.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-11-12 CVE Reserved
2019-11-14 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2024-11-07 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (12)

URL	Tag	Source
http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LSN-0062-1.html	X_refsource_misc
https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html	Mailing List
https://security.netapp.com/advisory/ntap-20191205-0001	X_refsource_confirm
https://www.oracle.com/security-alerts/cpuApr2021.html	X_refsource_misc

URL	Date	SRC
https://github.com/bobfuzzer/CVE-2019-18885	2024-08-05

URL	Date	SRC
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=09ba3bc9dd150457c506e4661380a6183af651c1	2021-06-14
https://github.com/torvalds/linux/commit/09ba3bc9dd150457c506e4661380a6183af651c1	2021-06-14

URL	Date	SRC
https://usn.ubuntu.com/4254-1	2021-06-14
https://usn.ubuntu.com/4254-2	2021-06-14
https://usn.ubuntu.com/4258-1	2021-06-14
https://usn.ubuntu.com/4287-1	2021-06-14
https://usn.ubuntu.com/4287-2	2021-06-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.1 Search vendor "Linux" for product "Linux Kernel" and version " < 5.1"		-		Affected