CVE-2019-19318

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,

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CVSS v3.1

4.4 MEDIUM

EPSS

0.65%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

CVSS v3.1 Detail

Attack VectorLOCAL

Attack ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

ScopeUNCHANGED

ConfidentialityNONE

IntegrityNONE

AvailabilityHIGH

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

Connections

15 relationships

active iq unified manager

source

steelstore cloud integrated storage

data availability services

Timeline

disclosure → media coverage

Nov 28, 2019

Disclosure — published as a CVE record. · last revised by NVD Nov 21, 2024