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CVE-2019-19065 Null pointer dereference

Routine
Remediate Within 6 Months

CVE Information

Original CVE data

Published:
Updated:

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).

CWE: CWE-401
CVSS v24.7
AV:L/AC:M/AU:N/C:N/I:N/A:C
CVSS v34.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
References
https://github.com/torvalds/linux/commit/34b3be18a04ecdc610aae4c48e5d1b799d8689f6
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9
https://usn.ubuntu.com/4208-1/
https://usn.ubuntu.com/4210-1/
https://security.netapp.com/advisory/ntap-20191205-0001/
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
https://usn.ubuntu.com/4226-1/
Affected Vendors

Canonical - (1)

Linux - (1)

Opensuse - (1)

Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOnengine

Null pointer dereference

CVSS Scores as calculated by PRIOnengine
CVSS v24.9
AV:L/AC:L/AU:N/C:N/I:N/A:C
CVSS v35.5
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
MITRE CWE Top 25

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Exploits

No exploit code is reported to exist.

Active Exploitation

Vulnerability is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

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Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

T1499 - Endpoint Denial of Service
T1498 - Network Denial of Service
T1203 - Exploitation for Client Execution
T1059 - Command and Scripting Interpreter

Compliance Impact

How the submited vulnerability affects compliance

PCI DSS v3.2.1-6.5.5 - Improper Error Handling

Web Application Security Frameworks

Applicable if the issue likely affects a web application

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