What is CVE-2019-18680?

CVE-2019-18680 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2019-18680 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2019-18680?

CVE-2019-18680 has a CVSS score of 7.5 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2019-18680?

No patch is currently available for CVE-2019-18680. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2019-18680 actively exploited?

CVE-2019-18680 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2019-18680

High

An issue was discovered in the Linux kernel 4.4.x before 4.4.195. There is a NULL pointer dereference in rds_tcp_kill_sock() in net/rds/tcp.c that will cause denial of service, aka CID-91573ae4aed0.

Package Linux Kernel

Published 2019-11-04

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.5

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-476

CVE-2019-18680 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2019-18680 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lkml
https://lkml.org/lkml/2019/9/18/337

Exploit Mailing List Vendor Advisory
Security
https://security.netapp.com/advisory/ntap-20191205-0001/

Third Party Advisory
Kernel patch commit
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.195
Patch
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=91573ae4aed0a49660abdad4d42f2a0db995ee5e
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/91573ae4aed0a49660abdad4d42f2a0db995ee5e
Patch

Details

CVE ID CVE-2019-18680

Severity High

CVSS score 7.5 / 10

CVSS version 3.1

Published 2019-11-04

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2019-18680?

CVE-2019-18680 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2019-18680 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2019-18680?

CVE-2019-18680 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2019-18680?

No patch is currently available for CVE-2019-18680. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2019-18680 actively exploited?

No — CVE-2019-18680 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. View CWE-476 on MITRE CWE →