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cve[email protected]CVE-2019-19318
HistoryNov 28, 2019 - 12:15 a.m.

CVE-2019-19318

2019-11-2800:15:11
CWE-416
web.nvd.nist.gov
132
linux
kernel
cve-2019-19318
btrfs
rwsem_down_write_slowpath
nvd

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6 Medium

AI Score

Confidence

Low

2.1 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

22.6%

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,

Affected configurations

NVD
Node
linuxlinux_kernelMatch5.0.21
OR
linuxlinux_kernelMatch5.3.11
Node
opensuseleapMatch15.1
Node
canonicalubuntu_linuxMatch14.04esm
OR
canonicalubuntu_linuxMatch16.04lts
OR
canonicalubuntu_linuxMatch18.04lts
Node
debiandebian_linuxMatch9.0
Node
netappactive_iq_unified_managerRange9.5vmware_vsphere
OR
netappdata_availability_servicesMatch-
OR
netapphci_management_nodeMatch-
OR
netappsolidfireMatch-
OR
netappsteelstore_cloud_integrated_storageMatch-
Node
netappaff_a700s_firmwareMatch-
AND
netappaff_a700sMatch-
Node
netappfas8300_firmwareMatch-
AND
netappfas8300Match-
Node
netappfas8700_firmwareMatch-
AND
netappfas8700Match-
Node
netappaff_a400_firmwareMatch-
AND
netappaff_a400Match-
Node
netapph610s_firmwareMatch-
AND
netapph610sMatch-

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6 Medium

AI Score

Confidence

Low

2.1 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

22.6%