CVE-2023-39194

Kernel: xfrm: out-of-bounds read in __xfrm_state_filter_match()

Published Oct 9, 2023 CVSS 3.1 · 3.2 Low EPSS < 1% KEV · Not listed
Description
A flaw was found in the XFRM subsystem in the Linux kernel. The specific flaw exists within the processing of state filters, which can result in a read past the end of an allocated buffer. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, potentially leading to an information disclosure.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3710-1 linux security update
EUVD EUVD EUVD-2023-42929 A flaw was found in the XFRM subsystem in the Linux kernel. The specific flaw exists within the processing of state filters, which can result in a read past the end of an allocated buffer. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, potentially leading to an information disclosure.
Ubuntu USN Ubuntu USN USN-6494-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6494-2 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6532-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6534-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6534-2 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6534-3 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6548-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6548-2 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6548-3 Linux kernel (Oracle) vulnerabilities
Ubuntu USN Ubuntu USN USN-6549-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6549-2 Linux kernel (GKE) vulnerabilities
Ubuntu USN Ubuntu USN USN-6549-3 Linux kernel (Low Latency) vulnerabilities
Ubuntu USN Ubuntu USN USN-6548-4 Linux kernel (GKE) vulnerabilities
Ubuntu USN Ubuntu USN USN-6548-5 Linux kernel (IoT) vulnerabilities
Ubuntu USN Ubuntu USN USN-6549-4 Linux kernel (Intel IoTG) vulnerabilities
Ubuntu USN Ubuntu USN USN-6549-5 Linux kernel vulnerabilities
History
Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 7, 2026, 11:32 AM
Reserved
Jul 25, 2023, 4:01 PM
Status
Modified
Published
Oct 9, 2023, 6:15 PM
Modified
Nov 7, 2026, 12:17 PM
Severity
Low
Public date
Sep 29, 2023, 12:00 AM