// For flags

CVE-2022-1473

Resource leakage when decoding certificates and keys

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The OPENSSL_LH_flush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will expand without bounds and the process might be terminated by the operating system causing a denial of service. Also traversing the empty hash table entries will take increasingly more time. Typically such long lived processes might be TLS clients or TLS servers configured to accept client certificate authentication. The function was added in the OpenSSL 3.0 version thus older releases are not affected by the issue. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).

La función OPENSSL_LH_flush(), que vacía una tabla hash, contiene un error que rompe el reúso de la memoria ocupada por las entradas de la tabla hash eliminadas. Esta función es usado cuando son descodificados certificados o claves. Si un proceso de larga duración decodifica periódicamente certificados o claves, su uso de memoria será expandida sin límites y el proceso podría ser terminado por el sistema operativo causando una denegación de servicio. Además, recorrer las entradas vacías de la tabla hash llevará cada vez más tiempo. Normalmente, estos procesos de larga duración pueden ser clientes TLS o servidores TLS configurados para aceptar la autenticación de certificados de clientes. La función fue añadida en la versión 3.0 de OpenSSL, por lo que las versiones anteriores no están afectadas por el problema. Corregido en OpenSSL versión 3.0.3 (Afectado 3.0.0,3.0.1,3.0.2)

A memory leak flaw was found in OpenSSL, resulting in TLS servers and clients being halted by out-of-memory conditions, leading to a denial of service. An attacker needs to repeat actions continuously to trigger this vulnerability, resulting in a loss of application availability.

*Credits: Aliaksei Levin
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-04-26 CVE Reserved
  • 2022-05-03 CVE Published
  • 2024-09-16 CVE Updated
  • 2024-11-11 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-401: Missing Release of Memory after Effective Lifetime
  • CWE-459: Incomplete Cleanup
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Netapp
Search vendor "Netapp"
A700s Firmware
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--
Affected
in Netapp
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A700s
Search vendor "Netapp" for product "A700s"
--
Safe
Netapp
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H300s Firmware
Search vendor "Netapp" for product "H300s Firmware"
--
Affected
in Netapp
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H300s
Search vendor "Netapp" for product "H300s"
--
Safe
Netapp
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H500s Firmware
Search vendor "Netapp" for product "H500s Firmware"
--
Affected
in Netapp
Search vendor "Netapp"
H500s
Search vendor "Netapp" for product "H500s"
--
Safe
Netapp
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H700s Firmware
Search vendor "Netapp" for product "H700s Firmware"
--
Affected
in Netapp
Search vendor "Netapp"
H700s
Search vendor "Netapp" for product "H700s"
--
Safe
Netapp
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H300e Firmware
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--
Affected
in Netapp
Search vendor "Netapp"
H300e
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--
Safe
Netapp
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H500e Firmware
Search vendor "Netapp" for product "H500e Firmware"
--
Affected
in Netapp
Search vendor "Netapp"
H500e
Search vendor "Netapp" for product "H500e"
--
Safe
Netapp
Search vendor "Netapp"
H700e Firmware
Search vendor "Netapp" for product "H700e Firmware"
--
Affected
in Netapp
Search vendor "Netapp"
H700e
Search vendor "Netapp" for product "H700e"
--
Safe
Netapp
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H410s Firmware
Search vendor "Netapp" for product "H410s Firmware"
--
Affected
in Netapp
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H410s
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--
Safe
Netapp
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Aff 8300 Firmware
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--
Affected
in Netapp
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Aff 8300
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--
Safe
Netapp
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Fas 8300 Firmware
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--
Affected
in Netapp
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Fas 8300
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--
Safe
Netapp
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Aff 8700 Firmware
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--
Affected
in Netapp
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Aff 8700
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--
Safe
Netapp
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Fas 8700 Firmware
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--
Affected
in Netapp
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Fas 8700
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--
Safe
Netapp
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Aff A400 Firmware
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--
Affected
in Netapp
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Aff A400
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--
Safe
Netapp
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Fabric-attached Storage A400 Firmware
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--
Affected
in Netapp
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Fabric-attached Storage A400
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--
Safe
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
Search vendor "Netapp"
Aff 500f
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--
Safe
Netapp
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Fas 500f Firmware
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--
Affected
in Netapp
Search vendor "Netapp"
Fas 500f
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--
Safe
Openssl
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Openssl
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>= 3.0.0 < 3.0.3
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-
Affected
Netapp
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Active Iq Unified Manager
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-vsphere
Affected
Netapp
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Clustered Data Ontap
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--
Affected
Netapp
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Clustered Data Ontap Antivirus Connector
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--
Affected
Netapp
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Santricity Smi-s Provider
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--
Affected
Netapp
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Smi-s Provider
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--
Affected
Netapp
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Snapmanager
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-hyper-v
Affected
Netapp
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Solidfire\, Enterprise Sds \& Hci Storage Node
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--
Affected
Netapp
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Solidfire \& Hci Management Node
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--
Affected