CVE-2017-5986: Race Condition
First published: Wed Feb 08 2017(Updated: )
It was reported that with Linux kernel, earlier than version v4.10-rc8, an application may trigger a BUG_ON in sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is waiting on it to queue more data, and meanwhile another thread peels off the association being used by the first thread. References: <a href="https://lkml.org/lkml/2017/1/30/238">https://lkml.org/lkml/2017/1/30/238</a> <a href="http://seclists.org/oss-sec/2017/q1/432">http://seclists.org/oss-sec/2017/q1/432</a> Upstream patch: <a href="https://github.com/torvalds/linux/commit/2dcab598484185dea7ec22219c76dcdd59e3cb90">https://github.com/torvalds/linux/commit/2dcab598484185dea7ec22219c76dcdd59e3cb90</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=4.9.11 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2dcab598484185dea7ec22219c76dcdd59e3cb90
- http://www.debian.org/security/2017/dsa-3804
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11
- http://www.openwall.com/lists/oss-security/2017/02/14/6
- http://www.securityfocus.com/bid/96222
- https://access.redhat.com/errata/RHSA-2017:1308
- https://bugzilla.redhat.com/show_bug.cgi?id=1420276
- https://github.com/torvalds/linux/commit/2dcab598484185dea7ec22219c76dcdd59e3cb90
- https://launchpad.net/bugs/cve/CVE-2017-5986
- https://lkml.org/lkml/2017/1/30/238
- http://seclists.org/oss-sec/2017/q1/432
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1421741
- https://access.redhat.com/support/policy/updates/errata/
- http://patchwork.ozlabs.org/patch/731526/
- https://git.kernel.org/linus/2dcab598484185dea7ec22219c76dcdd59e3cb90
- https://security-tracker.debian.org/tracker/CVE-2017-5986
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5986
- https://nvd.nist.gov/vuln/detail/CVE-2017-5986
- https://ubuntu.com/security/CVE-2017-5986
Frequently Asked Questions
What is CVE-2017-5986?
CVE-2017-5986 is a vulnerability in the Linux kernel that allows local users to cause a denial of service by triggering a race condition in the sctp_wait_for_sndbuf function.
How severe is CVE-2017-5986?
CVE-2017-5986 has a severity level of medium.
How do I fix CVE-2017-5986?
To fix CVE-2017-5986, update your Linux kernel to version 4.9.11 or higher.
Where can I find more information about CVE-2017-5986?
You can find more information about CVE-2017-5986 at the following references: [https://lkml.org/lkml/2017/1/30/238](https://lkml.org/lkml/2017/1/30/238), [http://seclists.org/oss-sec/2017/q1/432](http://seclists.org/oss-sec/2017/q1/432), [https://github.com/torvalds/linux/commit/2dcab598484185dea7ec22219c76dcdd59e3cb90](https://github.com/torvalds/linux/commit/2dcab598484185dea7ec22219c76dcdd59e3cb90).
What is the CWE of CVE-2017-5986?
CVE-2017-5986 has a Common Weakness Enumeration (CWE) of 362.
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