Vulnerability Details : CVE-2017-6214
The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel before 4.9.11 allows remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag.
Vulnerability category: Denial of service
Products affected by CVE-2017-6214
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-6214
6.41%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 90 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-6214
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-6214
-
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-6214
-
https://source.android.com/security/bulletin/2017-09-01
Android Security Bulletin—September 2017 | Android Open Source Project
-
https://access.redhat.com/errata/RHSA-2017:1647
RHSA-2017:1647 - Security Advisory - Red Hat Customer Portal
-
https://access.redhat.com/errata/RHSA-2017:1615
RHSA-2017:1615 - Security Advisory - Red Hat Customer Portal
-
http://www.securitytracker.com/id/1037897
Linux Kernel tcp_splice_read() Infinite Loop Lets Remote Consume Excessive CPU Resources on the Target System - SecurityTracker
-
https://access.redhat.com/errata/RHSA-2017:1372
RHSA-2017:1372 - Security Advisory - Red Hat Customer Portal
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http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11
Release Notes;Vendor Advisory
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https://github.com/torvalds/linux/commit/ccf7abb93af09ad0868ae9033d1ca8108bdaec82
tcp: avoid infinite loop in tcp_splice_read() · torvalds/linux@ccf7abb · GitHubIssue Tracking;Patch;Third Party Advisory
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http://www.debian.org/security/2017/dsa-3804
Debian -- Security Information -- DSA-3804-1 linux
-
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccf7abb93af09ad0868ae9033d1ca8108bdaec82
kernel/git/torvalds/linux.git - Linux kernel source treeIssue Tracking;Patch;Third Party Advisory
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http://www.securityfocus.com/bid/96421
Linux Kernel CVE-2017-6214 Remote Denial of Service Vulnerability
-
https://access.redhat.com/errata/RHSA-2017:1616
RHSA-2017:1616 - Security Advisory - Red Hat Customer Portal
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