CVE-2017-6214 Denial of service in n/a
High 7.5
Published
Updated
Check this codebase for CVE-2017-6214 and fix it if it is affected.
What it is: CVE-2017-6214 is a high-severity denial of service vulnerability in Linux kernel, published on 23 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-6214 in the wild and no public exploit code.
Affected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2017-6214/ (Markdown: https://insights.sbomify.com/CVE-2017-6214/index.md)
Remote attackers can cause a denial of service via infinite loop in TCP handling, affecting Linux kernel administrators.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-6214?
CVE-2017-6214 is a high-severity denial of service vulnerability in Linux kernel, published on 23 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel before 4.9.11 allows remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag.
Weakness: CWE-835
Which versions are affected by CVE-2017-6214?
It affects 1 product.
Linux distribution packages (40)
kernel Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel-abi-whitelists Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debug Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debug-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debug-devel Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debuginfo-common-i686 Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel-devel Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel-doc Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel-firmware Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel-headers Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
perf Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
perf-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
python-perf Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
python-perf-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-696.3.1.el6 |
kernel Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel-abi-whitelists Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debug Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debug-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debug-devel Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debuginfo-common-i686 Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel-devel Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel-doc Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel-firmware Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel-headers Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
perf Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
perf-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
python-perf Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
python-perf-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-696.3.1.el6 |
kernel Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-696.3.1.el6 |
kernel-abi-whitelists Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-696.3.1.el6 |
kernel-bootwrapper Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debug Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debug-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debug-devel Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-696.3.1.el6 |
kernel-debuginfo-common-i686 Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-696.3.1.el6 |
Products include Linux kernel.
How do I fix CVE-2017-6214?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-6214 being exploited?
There is no known exploitation of CVE-2017-6214 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2017-6214, GHSA-7v6r-j8w7-v48j, RHSA-2017:1372, UBUNTU-CVE-2017-6214.