CVE-2020-36387

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-36387
An issue was discovered in the Linux kernel before 5.8.2. fs/io_uring.c has a use-after-free related to io_async_task_func and ctx reference holding, aka CID-6d816e088c35.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2 /10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2 Mailing List Patch Release Notes Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d816e088c359866f9867057e04f244c608c42fe Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20210727-0006/ Third Party Advisory
https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-io_async_task_func Patch Third Party Advisory
https://syzkaller.appspot.com/bug?id=ce5f07d6ec3b5050b8f0728a3b389aa510f2591b Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2 Mailing List Patch Release Notes Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d816e088c359866f9867057e04f244c608c42fe Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20210727-0006/ Third Party Advisory
https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-io_async_task_func Patch Third Party Advisory
https://syzkaller.appspot.com/bug?id=ce5f07d6ec3b5050b8f0728a3b389aa510f2591b Patch Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
History

21 Nov 2024, 05:29

Type Values Removed Values Added
References () https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2 - Mailing List, Patch, Release Notes, Vendor Advisory () https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2 - Mailing List, Patch, Release Notes, Vendor Advisory
References () https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d816e088c359866f9867057e04f244c608c42fe - Patch, Vendor Advisory () https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d816e088c359866f9867057e04f244c608c42fe - Patch, Vendor Advisory
References () https://security.netapp.com/advisory/ntap-20210727-0006/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20210727-0006/ - Third Party Advisory
References () https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-io_async_task_func - Patch, Third Party Advisory () https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-io_async_task_func - Patch, Third Party Advisory
References () https://syzkaller.appspot.com/bug?id=ce5f07d6ec3b5050b8f0728a3b389aa510f2591b - Patch, Third Party Advisory () https://syzkaller.appspot.com/bug?id=ce5f07d6ec3b5050b8f0728a3b389aa510f2591b - Patch, Third Party Advisory

01 Dec 2021, 20:08

Type Values Removed Values Added
References
  • (CONFIRM) https://security.netapp.com/advisory/ntap-20210727-0006/ - Third Party Advisory
CPE cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*

21 Jun 2021, 13:50

Type Values Removed Values Added
CWE CWE-416
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 7.2
v3 : 7.8
References (MISC) https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2 - (MISC) https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2 - Mailing List, Patch, Release Notes, Vendor Advisory
References (MISC) https://syzkaller.appspot.com/bug?id=ce5f07d6ec3b5050b8f0728a3b389aa510f2591b - (MISC) https://syzkaller.appspot.com/bug?id=ce5f07d6ec3b5050b8f0728a3b389aa510f2591b - Patch, Third Party Advisory
References (MISC) https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-io_async_task_func - (MISC) https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-io_async_task_func - Patch, Third Party Advisory
References (MISC) https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d816e088c359866f9867057e04f244c608c42fe - (MISC) https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d816e088c359866f9867057e04f244c608c42fe - Patch, Vendor Advisory

07 Jun 2021, 20:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-06-07 20:15

Updated : 2024-11-21 05:29

NVD link : CVE-2020-36387

Mitre link : CVE-2020-36387

CVE.ORG link : CVE-2020-36387

JSON object : View

Products Affected

netapp

  • h700s_firmware
  • h410c_firmware
  • h300s_firmware
  • h300s
  • h500e_firmware
  • h500s
  • h300e_firmware
  • h410s
  • h500s_firmware
  • h500e
  • h700e_firmware
  • h700e
  • h300e
  • h410s_firmware
  • h410c
  • h700s

linux

  • linux_kernel
CWE
CWE-416

Use After Free