CVE-2021-4204
HIGH
7.1
CVSS Score
Published: August 24, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:19 AM UTC
14 products affected across 4 vendorsLinux KernelDebian LinuxEnterprise Linux
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Severity
HIGH7.1
Exploit prediction
EPSS 1%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 5.8.05.8.0
Affected range stops below 5.8.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (5)
MitigationThird Party Advisory
Source: [email protected]
https://access.redhat.com/security/cve/CVE-2021-4204Issue TrackingThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2039178Third Party Advisory
Source: [email protected]
https://security-tracker.debian.org/tracker/CVE-2021-4204Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20221228-0003/Mailing ListPatchThird Party Advisory
Source: [email protected]
https://www.openwall.com/lists/oss-security/2022/01/11/4CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20CWE-119
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