CVE-2017-8824
HIGHCVSS 7.8/10EPSS 1.35%
Last modified
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/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
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://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://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
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2017-8824?
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Scan your code nowSource: NVD / NIST