CVE-2017-6346

Description

Race condition in net/packet/af_packet.c in the Linux kernel before 4.9.13 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a multithreaded application that makes PACKET_FANOUT setsockopt system calls.

Category

7.0
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.05%
Vendor Advisory debian.org Vendor Advisory kernel.org Vendor Advisory kernel.org Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/96508 vdb entry third party advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d199fab63c11998a602205f7ee7ff7c05c97164b patch vendor advisory
https://source.android.com/security/bulletin/2017-09-01 third party advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.13 release notes patch vendor advisory
http://www.openwall.com/lists/oss-security/2017/02/28/6 mailing list third party advisory patch
http://www.debian.org/security/2017/dsa-3804 third party advisory vendor advisory
https://github.com/torvalds/linux/commit/d199fab63c11998a602205f7ee7ff7c05c97164b patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-6346?
CVE-2017-6346 has been scored as a high severity vulnerability.
How to fix CVE-2017-6346?
To fix CVE-2017-6346, 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-2017-6346 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-6346 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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