CVE-2019-19816 - In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations

CVE-2019-19816

Summary

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.

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:	9.3 (as of 11-12-2020 - 00:15)
Impact:
Exploitability:

CWE

CWE-787

CAPEC

Access

Vector	Complexity	Authentication
NETWORK	MEDIUM	NONE

Impact

Confidentiality	Integrity	Availability
COMPLETE	COMPLETE	COMPLETE

cvss-vector via4

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

refmap via4

confirm	https://security.netapp.com/advisory/ntap-20200103-0001/
misc	https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19816
mlist	[debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update [debian-lts-announce] 20201210 [SECURITY] [DLA 2483-1] linux-4.19 security update
ubuntu	USN-4414-1

Last major update

11-12-2020 - 00:15

Published

17-12-2019 - 06:15

Last modified

11-12-2020 - 00:15