VulnerabilityModified
CVE-2016-2070
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.
HIGH 7.5EPSS 3.32%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.32% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8b8a321ff72c785ed5e8b4cf6eda20b35d427390Vendor 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/8b8a321ff72c785ed5e8b4cf6eda20b35d427390Patch, Vendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8b8a321ff72c785ed5e8b4cf6eda20b35d427390Vendor 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/8b8a321ff72c785ed5e8b4cf6eda20b35d427390Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.