What is CVE-2017-8824?

CVE-2017-8824 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Use After Free flaw (CWE-416). CVE-2017-8824 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-8824?

CVE-2017-8824 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2017-8824?

No patch is currently available for CVE-2017-8824. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2017-8824 actively exploited?

CVE-2017-8824 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-2017-8824

High

The dccp_disconnect function in net/dccp/proto.c in the Linux kernel through 4.14.3 allows local users to gain privileges or cause a denial of service (use-after-free) via an AF_UNSPEC connect system call during the DCCP_LISTEN state.

Package Linux Kernel

Published 2017-12-05

Last modified 2026-05-13

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-416

CVE-2017-8824 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-2017-8824 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html

Third Party Advisory
Lists
http://lists.openwall.net/netdev/2017/12/04/224

Third Party Advisory
Openwall
http://www.openwall.com/lists/oss-security/2017/12/05/1

Mailing List Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/102056

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHSA-2018:0399

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:0676

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:1062

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:1130

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:1170

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:1216

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:1319

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:3822

Third Party Advisory
Help
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0

Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3581-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3581-2/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3581-3/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3582-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3582-2/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3583-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3583-2/

Third Party Advisory
Debian Security
https://www.debian.org/security/2017/dsa-4073

Third Party Advisory
Debian Security
https://www.debian.org/security/2018/dsa-4082

Third Party Advisory
Exploit-DB
https://www.exploit-db.com/exploits/43234/

Exploit Third Party Advisory VDB Entry

Details

CVE ID CVE-2017-8824

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2017-12-05

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-8824?

CVE-2017-8824 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2017-8824 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-8824?

CVE-2017-8824 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2017-8824?

No patch is currently available for CVE-2017-8824. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2017-8824 actively exploited?

No — CVE-2017-8824 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 →