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CVE-2020-16166

Date: July 30, 2020

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.

Language: C

Severity Score

Related Resources (20)

https://github.com/torvalds/linux/commit/f227e3ec3b5cad859ad15666874405e8c1bbc1d4
https://usn.ubuntu.com/4525-1/
https://usn.ubuntu.com/4526-1/
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
https://www.oracle.com/security-alerts/cpuApr2021.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MFBCLQWJI5I4G25TVJNLXLAXJ4MERQNW/
https://access.redhat.com/security/cve/CVE-2020-16166
https://nvd.nist.gov/vuln/detail/CVE-2020-16166
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
https://security.netapp.com/advisory/ntap-20200814-0004/
https://arxiv.org/pdf/2012.07432.pdf
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-16166
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.html
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c51f8f88d705e06bd696d7510aff22b33eb8e638
https://security-tracker.debian.org/tracker/CVE-2020-16166
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f227e3ec3b5cad859ad15666874405e8c1bbc1d4
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AAPTLPAEKVAJYJ4LHN7VH4CN2W75R2YW/
https://www.mend.io/vulnerability-database/CVE-2020-16166

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

Use of Insufficiently Random Values

CWE-330

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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