// For flags

CVE-2021-28951

 

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25.

Se detectó un problema en el archivo fs/io_uring.c en el kernel de Linux versiones hasta 5.11.8. Permite a atacantes causar una denegación de servicio (deadlock) porque la salida puede estar esperando para estacionar un hilo SQPOLL, pero al mismo tiempo ese hilo SQPOLL está esperando una señal para comenzar, también se conoce como CID-3ebba796fa25

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-03-20 CVE Reserved
  • 2021-03-20 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-667: Improper Locking
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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A250 Firmware
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--
Affected
in Netapp
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A250
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--
Safe
Netapp
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Aff 500f Firmware
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--
Affected
in Netapp
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Aff 500f
Search vendor "Netapp" for product "Aff 500f"
--
Safe
Netapp
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Fas 500f Firmware
Search vendor "Netapp" for product "Fas 500f Firmware"
--
Affected
in Netapp
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Fas 500f
Search vendor "Netapp" for product "Fas 500f"
--
Safe
Netapp
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Solidfire Baseboard Management Controller Firmware
Search vendor "Netapp" for product "Solidfire Baseboard Management Controller Firmware"
--
Affected
in Netapp
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Solidfire Baseboard Management Controller
Search vendor "Netapp" for product "Solidfire Baseboard Management Controller"
--
Safe
Linux
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Linux Kernel
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<= 5.11.8
Search vendor "Linux" for product "Linux Kernel" and version " <= 5.11.8"
-
Affected
Fedoraproject
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Fedora
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32
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-
Affected
Fedoraproject
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Fedora
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33
Search vendor "Fedoraproject" for product "Fedora" and version "33"
-
Affected
Fedoraproject
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Fedora
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34
Search vendor "Fedoraproject" for product "Fedora" and version "34"
-
Affected
Netapp
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Cloud Backup
Search vendor "Netapp" for product "Cloud Backup"
--
Affected