What is CVE-2017-15115?

CVE-2017-15115 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2017-11-15.

How severe is CVE-2017-15115?

High severity. CVSS v3 base score is 7.8 out of 10.

Use After Free in Linux Kernel

CVE-2017-15115

The sctp_do_peeloff function in net/sctp/socket.c in the Linux kernel before 4.14 does not check whether the intended netns is used in a peel-off action, which allows local users to cause a denial of service (use-after-free and system crash) or possibly have unspecified other impact via crafted system calls.

Vulnerability class: Use-After-Free

Published 2017-11-15 · last modified 2026-06-17.

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: 0.005 (38.6th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Linux Kernel
Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
Debian Linux — versions 7.0
SUSE Linux Enterprise Server — versions 11
Linux Kernel Before 4.14-Rc6 — versions Linux kernel before 4.14-rc6

Weakness classification (CWE)

CWE-416 — Use After Free

References

bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
github.com/torvalds/linux/commit/df80cd9b28b9ebaa284a41df611dbf3a2d05ca74 (Patch, Third Party Advisory, Issue Tracking)
lists.debian.org/debian-lts-announce/2017/12/msg00004.html (mailing-list, 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)
patchwork.ozlabs.org/patch/827077/ (Patch, Third Party Advisory, Issue Tracking)
usn.ubuntu.com/3582-1/ (vendor-advisory, Third Party Advisory)
source.android.com/security/bulletin/pixel/2018-04-01 (Third Party Advisory)
usn.ubuntu.com/3583-1/ (vendor-advisory, Third Party Advisory)
www.securityfocus.com/bid/101877 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2017-15115?: CVE-2017-15115 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2017-11-15.
How severe is CVE-2017-15115?: High severity. CVSS v3 base score is 7.8 out of 10.