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CVE-2021-3635

Date: August 13, 2021

A flaw was found in the Linux kernel netfilter implementation in versions prior to 5.5-rc7. A user with root (CAP_SYS_ADMIN) access is able to panic the system when issuing netfilter netflow commands.

Severity Score

Related Resources (6)

https://nvd.nist.gov/vuln/detail/CVE-2021-3635
https://security-tracker.debian.org/tracker/CVE-2021-3635
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3635
https://access.redhat.com/security/cve/CVE-2021-3635
https://bugzilla.redhat.com/show_bug.cgi?id=1976946
https://www.mend.io/vulnerability-database/CVE-2021-3635

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

CVSS v3.1

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

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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