// For flags

CVE-2019-19813

 

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in __mutex_lock in kernel/locking/mutex.c. This is related to mutex_can_spin_on_owner in kernel/locking/mutex.c, __btrfs_qgroup_free_meta in fs/btrfs/qgroup.c, and btrfs_insert_delayed_items in fs/btrfs/delayed-inode.c.

En el kernel de Linux versión 5.0.21, montar una imagen de sistema de archivos btrfs especialmente diseñada, realizar algunas operaciones y luego hacer una llamada al sistema syncfs puede conllevar a un uso de la memoria previamente liberada en la función __mutex_lock en el archivo kernel/lock/mutex.c. Esto está relacionado con la función mutex_can_spin_on_owner en el archivo kernel/lock/mutex.c, la función __btrfs_qgroup_free_meta en el archivo fs/btrfs/qgroup.c y la función btrfs_insert_delayed_items en el archivo fs/btrfs/delayed-inode.c.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-12-16 CVE Reserved
  • 2019-12-17 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Netapp
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Aff A700s Firmware
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--
Affected
in Netapp
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Aff A700s
Search vendor "Netapp" for product "Aff A700s"
--
Safe
Netapp
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Fas8300 Firmware
Search vendor "Netapp" for product "Fas8300 Firmware"
--
Affected
in Netapp
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Fas8300
Search vendor "Netapp" for product "Fas8300"
--
Safe
Netapp
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Fas8700 Firmware
Search vendor "Netapp" for product "Fas8700 Firmware"
--
Affected
in Netapp
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Fas8700
Search vendor "Netapp" for product "Fas8700"
--
Safe
Netapp
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Aff A400 Firmware
Search vendor "Netapp" for product "Aff A400 Firmware"
--
Affected
in Netapp
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Aff A400
Search vendor "Netapp" for product "Aff A400"
--
Safe
Netapp
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H610s Firmware
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--
Affected
in Netapp
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H610s
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--
Safe
Linux
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Linux Kernel
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5.0.21
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-
Affected
Canonical
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Ubuntu Linux
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14.04
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esm
Affected
Canonical
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Ubuntu Linux
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16.04
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lts
Affected
Canonical
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Ubuntu Linux
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18.04
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lts
Affected
Debian
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Debian Linux
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9.0
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-
Affected
Netapp
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Active Iq Unified Manager
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>= 9.5
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vmware_vsphere
Affected
Netapp
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Data Availability Services
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--
Affected
Netapp
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Hci Management Node
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--
Affected
Netapp
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Solidfire
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--
Affected
Netapp
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Steelstore Cloud Integrated Storage
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--
Affected