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HIGH · 7.8

CVE-2023-4147

A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the sys...

Vulnerability Description

A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
LinuxLinux Kernel>= 5.9, < 5.10.190
FedoraprojectFedora38
RedhatEnterprise Linux9.0
RedhatEnterprise Linux Eus9.2
RedhatEnterprise Linux For Real Time9.0
RedhatEnterprise Linux For Real Time For Nfv9.0
RedhatEnterprise Linux Server Aus9.2
DebianDebian Linux10.0

Related Weaknesses (CWE)

CWE-416

References

FAQ

What is CVE-2023-4147?

CVE-2023-4147 is a vulnerability with a CVSS score of 7.8 (HIGH). A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the sys...

How severe is CVE-2023-4147?

CVE-2023-4147 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-4147?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Fedoraproject Fedora, Redhat Enterprise Linux, Redhat Enterprise Linux Eus, Redhat Enterprise Linux For Real Time.