CVE-2017-6214
First published: Thu Feb 23 2017(Updated: )
A flaw was found in the Linux kernels handling of packets with the URG flag. Applications using the splice() and tcp_splice_read() functionality can allow a remote attacker to force the kernel to enter a condition in which it can loop indefinitely. Upstream patch: <a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccf7abb93af09ad0868ae9033d1ca8108bdaec82">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccf7abb93af09ad0868ae9033d1ca8108bdaec82</a> References: <a href="https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11">https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11</a> <a href="http://seclists.org/oss-sec/2017/q1/491">http://seclists.org/oss-sec/2017/q1/491</a>
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Android | ||
| Linux Kernel | <=4.9.10 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.17-1 |
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Reference Links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccf7abb93af09ad0868ae9033d1ca8108bdaec82
- http://www.debian.org/security/2017/dsa-3804
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11
- http://www.securityfocus.com/bid/96421
- http://www.securitytracker.com/id/1037897
- https://access.redhat.com/errata/RHSA-2017:1372
- https://access.redhat.com/errata/RHSA-2017:1615
- https://access.redhat.com/errata/RHSA-2017:1616
- https://access.redhat.com/errata/RHSA-2017:1647
- https://github.com/torvalds/linux/commit/ccf7abb93af09ad0868ae9033d1ca8108bdaec82
- https://source.android.com/security/bulletin/2017-09-01
- https://launchpad.net/bugs/cve/CVE-2017-6214
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccf7abb93af09ad0868ae9033d1ca8108bdaec82
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11
- http://seclists.org/oss-sec/2017/q1/491
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1430585
- https://bugzilla.redhat.com/show_bug.cgi?id=1426542
- https://source.android.com/docs/security/bulletin/2017-09-01 (Advisory)
- https://git.kernel.org/linus/ccf7abb93af09ad0868ae9033d1ca8108bdaec82
- https://security-tracker.debian.org/tracker/CVE-2017-6214
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6214
- https://nvd.nist.gov/vuln/detail/CVE-2017-6214
- https://ubuntu.com/security/CVE-2017-6214
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2017-6214.
What is the severity level of CVE-2017-6214?
CVE-2017-6214 has a severity level of high.
How does CVE-2017-6214 affect Linux kernel?
CVE-2017-6214 allows remote attackers to cause a denial of service in the Linux kernel by exploiting a vulnerability in the tcp_splice_read function of net/ipv4/tcp.c.
Which Linux kernel versions are affected by CVE-2017-6214?
Linux kernel versions before 4.9.11 are affected by CVE-2017-6214.
How can I fix the CVE-2017-6214 vulnerability?
To fix the CVE-2017-6214 vulnerability, update your Linux kernel to version 4.9.11 or later.
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