Medium severity · published Nov 28, 2019
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…
4.4
CVSS
0.6%
EPSS
No
On KEV
Description
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,
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
5.0.21; 5.3.11 · source: NVD
AI
Active IQ Unified Manager · Netapp
9.5 and later · source: NVD
AA
Aff A400 Firmware · Netapp
All versions, or not specified · source: NVD
AA
Aff A700s Firmware · Netapp
All versions, or not specified · source: NVD
DA
Data Availability Services · Netapp
All versions, or not specified · source: NVD
DL
Debian Linux · Debian
9.0 · source: NVD
FF
Fas8300 Firmware · Netapp
All versions, or not specified · source: NVD
FF
Fas8700 Firmware · Netapp
All versions, or not specified · source: NVD
HF
H610s Firmware · Netapp
All versions, or not specified · source: NVD
HM
Hci Management Node · Netapp
All versions, or not specified · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
SO
Solidfire · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-19318
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-19318
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
Exploit
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19318
Mailing List
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/
Third Party Advisory
https://usn.ubuntu.com/4414-1/
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