CVE-2016-7917

Description

The nfnetlink_rcv_batch function in net/netfilter/nfnetlink.c in the Linux kernel before 4.5 does not check whether a batch message's length field is large enough, which allows local users to obtain sensitive information from kernel memory or cause a denial of service (infinite loop or out-of-bounds read) by leveraging the CAP_NET_ADMIN capability.

Category

5.0
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.16%
Third-Party Advisory kernel.org Third-Party Advisory android.com Third-Party Advisory securityfocus.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://source.android.com/security/bulletin/2016-11-01.html third party advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c58d6c93680f28ac58984af61d0a7ebf4319c241 issue tracking third party advisory patch
http://www.securityfocus.com/bid/94147 vdb entry third party advisory
https://github.com/torvalds/linux/commit/c58d6c93680f28ac58984af61d0a7ebf4319c241 issue tracking patch

Frequently Asked Questions

What is the severity of CVE-2016-7917?
CVE-2016-7917 has been scored as a medium severity vulnerability.
How to fix CVE-2016-7917?
To fix CVE-2016-7917, 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-2016-7917 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-7917 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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