CVE-2017-6214

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 6.49% Top 10%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://source.android.com/security/bulletin/2017-09-01
http://www.securityfocus.com/bid/96421 vdb entry
https://access.redhat.com/errata/RHSA-2017:1615 vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccf7abb93af09ad0868ae9033d1ca8108bdaec82 issue tracking third party advisory patch
https://access.redhat.com/errata/RHSA-2017:1647 vendor advisory
https://access.redhat.com/errata/RHSA-2017:1616 vendor advisory
https://access.redhat.com/errata/RHSA-2017:1372 vendor advisory
http://www.securitytracker.com/id/1037897 vdb entry
http://www.debian.org/security/2017/dsa-3804 vendor advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11 release notes vendor advisory
https://github.com/torvalds/linux/commit/ccf7abb93af09ad0868ae9033d1ca8108bdaec82 issue tracking third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2017-6214?
CVE-2017-6214 has been scored as a high severity vulnerability.
How to fix CVE-2017-6214?
To fix CVE-2017-6214, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-6214 being actively exploited in the wild?
It is possible that CVE-2017-6214 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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