Vulnerability 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.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.3, < 4.3.5 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8b8a32Vendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.5Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/01/25/5Mailing List
- https://bugzilla.redhat.com/show_bug.cgi?id=1302219Issue Tracking
- https://github.com/torvalds/linux/commit/8b8a321ff72c785ed5e8b4cf6eda20b35d42739PatchVendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8b8a32Vendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.5Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/01/25/5Mailing List
- https://bugzilla.redhat.com/show_bug.cgi?id=1302219Issue Tracking
- https://github.com/torvalds/linux/commit/8b8a321ff72c785ed5e8b4cf6eda20b35d42739PatchVendor Advisory
FAQ
What is CVE-2016-2070?
CVE-2016-2070 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 tr...
How severe is CVE-2016-2070?
CVE-2016-2070 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-2070?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.