CVE-2017-8824
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.
Does this matter?
A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 1.3%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.34% probability · 71th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 7 December 2017
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- security@debian.org
EPSS 1.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.