CVE-2017-8824

Name: CVE-2017-8824
Creator: NVD / NIST
Published: 2017-12-05T09:29:00.367+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.35%

Last modified Jun 17, 2026

CVE-2017-8824 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 1.35% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.35%

68.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 2.6.14, < 3.2.97
Linux	Linux Kernel	>= 3.3, < 3.16.52
Linux	Linux Kernel	>= 3.17, < 3.18.95
Linux	Linux Kernel	>= 3.19, < 4.1.50
Linux	Linux Kernel	>= 4.2, < 4.4.116
Linux	Linux Kernel	>= 4.5, < 4.9.82
Linux	Linux Kernel	>= 4.10, < 4.14.20

References

http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.htmlThird Party Advisory
http://lists.openwall.net/netdev/2017/12/04/224Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/12/05/1Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/102056Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:0399Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0676Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1062Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1130Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1170Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1216Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1319Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3822Third Party Advisory
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0Third Party Advisory
https://lists.debian.org/debian-lts-announce/2017/12/msg00004.htmlThird Party Advisory
https://usn.ubuntu.com/3581-1/Third Party Advisory
https://usn.ubuntu.com/3581-2/Third Party Advisory
https://usn.ubuntu.com/3581-3/Third Party Advisory
https://usn.ubuntu.com/3582-1/Third Party Advisory
https://usn.ubuntu.com/3582-2/Third Party Advisory
https://usn.ubuntu.com/3583-1/Third Party Advisory
https://usn.ubuntu.com/3583-2/Third Party Advisory
https://www.debian.org/security/2017/dsa-4073Third Party Advisory
https://www.debian.org/security/2018/dsa-4082Third Party Advisory
https://www.exploit-db.com/exploits/43234/Exploit, Third Party Advisory, VDB Entry
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.htmlThird Party Advisory
http://lists.openwall.net/netdev/2017/12/04/224Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/12/05/1Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/102056Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:0399Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0676Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1062Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1130Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1170Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1216Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1319Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3822Third Party Advisory
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0Third Party Advisory
https://lists.debian.org/debian-lts-announce/2017/12/msg00004.htmlThird Party Advisory
https://usn.ubuntu.com/3581-1/Third Party Advisory
https://usn.ubuntu.com/3581-2/Third Party Advisory
https://usn.ubuntu.com/3581-3/Third Party Advisory
https://usn.ubuntu.com/3582-1/Third Party Advisory
https://usn.ubuntu.com/3582-2/Third Party Advisory
https://usn.ubuntu.com/3583-1/Third Party Advisory
https://usn.ubuntu.com/3583-2/Third Party Advisory
https://www.debian.org/security/2017/dsa-4073Third Party Advisory
https://www.debian.org/security/2018/dsa-4082Third Party Advisory
https://www.exploit-db.com/exploits/43234/Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Dec 5, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-8824?

How severe is CVE-2017-8824?

CVE-2017-8824 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.

How do I fix CVE-2017-8824?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-8824?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST