Home/CVE/In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free b
CVE

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 b

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,.

MEDIUM · CVSS 4.4 EPSS 0.00353
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

14
linux kernelall versions
opensuse leapall versions
canonical ubuntu linuxall versions
debian linuxall versions
netapp active iq unified manager>= 9.5
netapp data availability servicesall versions
netapp hci management nodeall versions
netapp solidfireall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · CVE-2019-19318github.com
▣

Scoring & Timeline

4.4
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Nov 2019 · 12:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

12
usnUSN-4414-1
suse-csafSUSE-SU-2020:1663-1
suse-csafopenSUSE-SU-2020:0336-1
suse-csafSUSE-SU-2020:0613-1
suse-csafSUSE-SU-2020:0605-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
https://usn.ubuntu.com/4414-1/Third Party Advisory
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