// For flags

CVE-2019-19065

kernel: A memory leak in the sdma_init() function in drivers/infiniband/hw/hfi1/sdma.c allows for a DoS

Severity Score

4.7
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

A memory leak in the sdma_init() function in drivers/infiniband/hw/hfi1/sdma.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering rhashtable_init() failures, aka CID-34b3be18a04e. NOTE: This has been disputed as not a vulnerability because "rhashtable_init() can only fail if it is passed invalid values in the second parameter's struct, but when invoked from sdma_init() that is a pointer to a static const struct, so an attacker could only trigger failure if they could corrupt kernel memory (in which case a small memory leak is not a significant problem).

** EN DISPUTA ** Una pérdida de memoria en la función sdma_init () en drivers / infiniband / hw / hfi1 / sdma.c en el kernel de Linux anterior a la versión 5.3.9 permite a los atacantes causar una denegación de servicio (consumo de memoria) al activar rhashtable_init ( ) fallos, también conocido como CID-34b3be18a04e. NOTA: Esto se ha discutido como no una vulnerabilidad porque "rhashtable_init () solo puede fallar si se pasan valores no válidos en la estructura del segundo parámetro, pero cuando se invoca desde sdma_init () es un puntero a una estructura de const estática, por lo que un atacante "solo podría provocar una fallo si pudieran dañar la memoria del núcleo (en cuyo caso una pequeña pérdida de memoria no es un problema importante)".

A flaw was found in the Linux kernel. The Intel OPA Gen1 driver mishandles resource cleanup. An attacker able to induce low memory condition on the system could use this flaw to crash the system. The highest threat from this vulnerability is to system availability.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2019-11-18 CVE Reserved
  • 2019-11-18 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-401: Missing Release of Memory after Effective Lifetime
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
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Linux Kernel
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< 5.3.9
Search vendor "Linux" for product "Linux Kernel" and version " < 5.3.9"
-
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
Canonical
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Ubuntu Linux
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19.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "19.04"
-
Affected
Canonical
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Ubuntu Linux
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19.10
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-
Affected
Opensuse
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Leap
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15.1
Search vendor "Opensuse" for product "Leap" and version "15.1"
-
Affected