CVE-2020-16166 Information disclosure in n/a
Low 3.7
Published
Updated
Check this codebase for CVE-2020-16166 and fix it if it is affected.
What it is: CVE-2020-16166 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 30 Jul 2020. 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-2020-16166 in the wild and no public exploit code.
Affected product: Canonical Ubuntu Linux. 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-2020-16166/ (Markdown: https://insights.sbomify.com/CVE-2020-16166/index.md)
Remote attackers can observe network RNG state to obtain sensitive internal information, affecting Linux kernel users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-16166?
CVE-2020-16166 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 30 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c.
Weakness: CWE-330
Which versions are affected by CVE-2020-16166?
It affects 15 products.
Linux distribution packages (40)
bpftool Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
bpftool-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-abi-whitelists Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-core Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debug Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debug-core Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debug-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debug-devel Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debug-modules Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debug-modules-extra Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debuginfo-common-aarch64 Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debuginfo-common-ppc64le Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debuginfo-common-s390x Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-devel Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-doc Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-modules Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-modules-extra Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-tools Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-tools-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-tools-libs Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-zfcpdump Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-zfcpdump-core Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-zfcpdump-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-zfcpdump-devel Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-zfcpdump-modules Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-zfcpdump-modules-extra Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
perf Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
perf-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
python3-perf Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
python3-perf-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:4.18.0-240.8.1.el8_3 |
bpftool-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debug-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debuginfo-common-aarch64 Red Hat:enterprise_linux:8::crb | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debuginfo-common-ppc64le Red Hat:enterprise_linux:8::crb | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:8::crb | All versions | 0:4.18.0-240.8.1.el8_3 |
kernel-tools-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:4.18.0-240.8.1.el8_3 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Linux kernel, Netapp Active Iq Unified Manager, Netapp Cloud Volumes Ontap Mediator and 9 more.
How do I fix CVE-2020-16166?
Apply the vendor's patch.
Is CVE-2020-16166 being exploited?
There is no known exploitation of CVE-2020-16166 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2020-16166, GHSA-6c68-84gq-j9gr, RHSA-2020:5418, RHSA-2020:5428, RHSA-2020:5473, RHSA-2020:5506 and 1 more.