National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-18509 Detail

Current Description

An issue was discovered in net/ipv6/ip6mr.c in the Linux kernel before 4.11. By setting a specific socket option, an attacker can control a pointer in kernel land and cause an inet_csk_listen_stop general protection fault, or potentially execute arbitrary code under certain circumstances. The issue can be triggered as root (e.g., inside a default LXC container or with the CAP_NET_ADMIN capability) or after namespace unsharing. This occurs because sk_type and protocol are not checked in the appropriate part of the ip6_mroute_* functions. NOTE: this affects Linux distributions that use 4.9.x longterm kernels before 4.9.187.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.8 HIGH
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html Third Party Advisory VDB Entry
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99253eb750fda6a644d5188fb26c43bad8d5a745 Patch Vendor Advisory
https://github.com/torvalds/linux/commit/99253eb750fda6a644d5188fb26c43bad8d5a745 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html Mailing List Third Party Advisory
https://lists.openwall.net/netdev/2017/12/04/40 Mailing List Third Party Advisory
https://pulsesecurity.co.nz/advisories/linux-kernel-4.9-inetcsklistenstop-gpf Exploit Third Party Advisory
https://salsa.debian.org/kernel-team/linux/commit/baefcdc2f29923e7325ce4e1a72c3ff0a9800f32 Patch Third Party Advisory
https://seclists.org/bugtraq/2019/Aug/26 Mailing List Third Party Advisory
https://support.f5.com/csp/article/K41582535
https://support.f5.com/csp/article/K41582535?utm_source=f5support&utm_medium=RSS
https://usn.ubuntu.com/4145-1/
https://www.debian.org/security/2019/dsa-4497 Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-20 Improper Input Validation NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
4.11

Configuration 2 ( hide )
 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

10 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-18509
NVD Published Date:
08/13/2019
NVD Last Modified:
09/26/2019