Use After Free in Linux Kernel
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (70.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Linux Kernel
- Linux Kernel Through 4.14.3 — versions Linux kernel through 4.14.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2018/dsa-4082 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2017/12/msg00004.html (mailing-list, Third Party Advisory)
- usn.ubuntu.com/3583-2/ (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3582-1/ (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:1062 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:1319 (vendor-advisory, Third Party Advisory)
- help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+D… (Third Party Advisory)
- usn.ubuntu.com/3583-1/ (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:0676 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-8824?
- CVE-2017-8824 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2017-12-05.
- How severe is CVE-2017-8824?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2017-8824 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.