Home/CVE/The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information a
CVE

CVE-2020-16166

The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information a

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.

LOW · CVSS 3.7 EPSS 0.01676
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-330Use of Insufficiently Random Values
▤

Affected Products & Versions

15
linux kernel<= 5.7.11
opensuse leapall versions
fedoraproject fedoraall versions
debian linuxall versions
canonical ubuntu linuxall versions
netapp active iq unified manager>= 9.5
netapp cloud volumes ontap mediatorall versions
netapp e-series santricity os controller>= 11.0.0 and <= 11.60.3
▣

Scoring & Timeline

3.7
LOW · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD30 Jul 2020 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
⚑

Vendor Advisories

24
suse-csafopenSUSE-SU-2021:0242-1
rhsaRHSA-2020:4279Important
usnUSN-4525-1
usnUSN-4526-1
suse-csafSUSE-SU-2020:2623-1
🔗

References & Sources

15
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.htmlMailing ListThird Party Advisory
https://arxiv.org/pdf/2012.07432.pdfTechnical DescriptionThird Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f227e3ec3b5cad859ad15666874405e8c1bbc1d4PatchVendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c51f8f88d705e06bd696d7510aff22b33eb8e638PatchVendor Advisory
https://github.com/torvalds/linux/commit/f227e3ec3b5cad859ad15666874405e8c1bbc1d4PatchThird Party Advisory
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