CVE-2019-19318 - In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowp

CVE-2019-19318

Summary

In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags returns an already freed pointer,

References

https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19318

Vulnerable Configurations

cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.3.11:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.3.11:*:*:*:*:*:*:*

CVSS

Base:	4.3
Impact:
Exploitability:

CWE

CWE-416

CAPEC

Access

Vector	Complexity	Authentication

Impact

Confidentiality	Integrity	Availability

Last major update

28-11-2019 - 00:15

Published

28-11-2019 - 00:15

Last modified

04-12-2019 - 19:12