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CVE-2021-4204

Date: August 23, 2022

An out-of-bounds (OOB) memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation. This flaw allows a local attacker with a special privilege to crash the system or leak internal information.

Severity Score

Related Resources (8)

https://security-tracker.debian.org/tracker/CVE-2021-4204
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-4204
https://www.openwall.com/lists/oss-security/2022/01/11/4
https://access.redhat.com/security/cve/CVE-2021-4204
https://nvd.nist.gov/vuln/detail/CVE-2021-4204
https://bugzilla.redhat.com/show_bug.cgi?id=2039178
https://security.netapp.com/advisory/ntap-20221228-0003/
https://www.mend.io/vulnerability-database/CVE-2021-4204

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Improper Input Validation

CWE-20

Out-of-bounds Write

CWE-787

CVSS v3.1

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

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