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
EPSS: 0.013 (68.5th percentile) — read the EPSS interpretation.
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.
Affected products
- Linux Linux_kernel
- N/a Linux Kernel Through 4.14.3 — versions Linux kernel through 4.14.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@debian.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- security@debian.org (mailing-list, x_refsource_MLIST, Third Party Advisory)
- security@debian.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@debian.org (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- security@debian.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@debian.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@debian.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@debian.org (x_refsource_CONFIRM, Third Party Advisory)
- security@debian.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@debian.org (x_refsource_REDHAT, 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.