CVE-2016-8646

Description

The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1388821 issue tracking
https://access.redhat.com/errata/RHSA-2017:1308 vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45 issue tracking patch vendor advisory
http://www.securityfocus.com/bid/94309 vdb entry
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6 release notes
https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45 issue tracking third party advisory patch
https://access.redhat.com/errata/RHSA-2017:1298 vendor advisory
http://www.openwall.com/lists/oss-security/2016/11/15/2 third party advisory mailing list
https://access.redhat.com/errata/RHSA-2017:1297 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-8646?
CVE-2016-8646 has been scored as a medium severity vulnerability.
How to fix CVE-2016-8646?
To fix CVE-2016-8646, 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-2016-8646 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-8646 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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