What is CVE-2017-18202?

CVE-2017-18202 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10, classified as a Use After Free flaw (CWE-416). CVE-2017-18202 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-18202?

CVE-2017-18202 has a CVSS score of 7.0 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2017-18202?

No patch is currently available for CVE-2017-18202. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2017-18202 actively exploited?

CVE-2017-18202 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2017-18202

High

The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.

Package Linux Kernel

Published 2018-02-27

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.0

out of 10

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-416

CVE-2017-18202 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2017-18202 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Securityfocus
http://www.securityfocus.com/bid/103161

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHSA-2018:2772

Third Party Advisory
Kernel.org
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.4

Vendor Advisory
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=687cb0884a714ff484d038e9190edc874edcf146
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/687cb0884a714ff484d038e9190edc874edcf146
Patch

Details

CVE ID CVE-2017-18202

Severity High

CVSS score 7.0 / 10

CVSS version 3.1

Published 2018-02-27

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-18202?

CVE-2017-18202 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2017-18202 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-18202?

CVE-2017-18202 has a CVSS score of 7.0 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2017-18202?

No patch is currently available for CVE-2017-18202. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2017-18202 actively exploited?

No — CVE-2017-18202 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →