CVE-2016-2070

Description

The tcp_cwnd_reduction function in net/ipv4/tcp_input.c in the Linux kernel before 4.3.5 allows remote attackers to cause a denial of service (divide-by-zero error and system crash) via crafted TCP traffic.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.74% Top 30%
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.openwall.com/lists/oss-security/2016/01/25/5 mailing list
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.5 vendor advisory
https://github.com/torvalds/linux/commit/8b8a321ff72c785ed5e8b4cf6eda20b35d427390 patch vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8b8a321ff72c785ed5e8b4cf6eda20b35d427390 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1302219 issue tracking

Frequently Asked Questions

What is the severity of CVE-2016-2070?
CVE-2016-2070 has been scored as a high severity vulnerability.
How to fix CVE-2016-2070?
To fix CVE-2016-2070, 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-2016-2070 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2070 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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