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.
CVE-2023-39194
Score 3.2 from GitHub Security Advisory published 2023-10-09. NVD baseline CVSS 3.2; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 3.2
- EG Score
- 3.2(medium)
- EG Risk
- —
- EPSS
- 34.1%
- KEV
- Not listed
Published
October 9, 2023
Last Modified
November 21, 2024
References (13)
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:2394
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:2950
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:3138
- secalert@redhathttps://access.redhat.com/security/cve/CVE-2023-39194
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=2226788
- secalert@redhathttps://www.zerodayinitiative.com/advisories/ZDI-CAN-18111/
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:2394
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:2950
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:3138
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-39194
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2226788
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- af854a3a-2127-422b-91ae-364da2661108https://www.zerodayinitiative.com/advisories/ZDI-CAN-18111/
Vendor Advisories for CVE-2023-39194(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(19)
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(18)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Microsoft MSRCCVE-2023-391942023-10-12
Kernel: xfrm: out-of-bounds read in __xfrm_state_filter_match()
- Red HatRHSA-2024:2950LOW2023-09-29
RHSA-2024:2950 — Low
- UbuntuUSN-6494-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6494-2MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6532-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6534-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6534-2MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6534-3MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6548-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6548-2MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6548-3MEDIUM
Linux kernel (Oracle) vulnerabilities
- UbuntuUSN-6548-4MEDIUM
Linux kernel (GKE) vulnerabilities
- UbuntuUSN-6548-5MEDIUM
Linux kernel (IoT) vulnerabilities
- UbuntuUSN-6549-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6549-2MEDIUM
Linux kernel (GKE) vulnerabilities
- UbuntuUSN-6549-3MEDIUM
Linux kernel (Low Latency) vulnerabilities
- UbuntuUSN-6549-4MEDIUM
Linux kernel (Intel IoTG) vulnerabilities
- UbuntuUSN-6549-5MEDIUM
Linux kernel vulnerabilities
Data Freshness Timeline
(refreshed 11× in last 7d / 48× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 102 total refreshes for this CVE.
- 2026-07-22 23:12 UTCEG score recompute
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Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat · msrc
Same CWE
10 shownCWE-125
- CVE-2014-2898EG 9.8CRITICAL
- CVE-2014-2897EG 9.8CRITICAL
- CVE-2014-2896EG 9.8CRITICAL
- CVE-2015-9290EG 9.8CRITICAL
- CVE-2016-10749EG 9.8CRITICAL
- CVE-1999-0006EG 9.8EPSS 96%CRITICAL
- CVE-2014-3180EG 9.1CRITICAL
- CVE-2014-1508EG 9.1EPSS 90%CRITICAL
- CVE-2016-5198NVD 8.8EG 9.0 KEVEPSS 98%HIGH
- CVE-2016-4523NVD 7.5EG 9.0 KEVEPSS 98%HIGH
Frequently asked(5)
What is CVE-2023-39194?
When was CVE-2023-39194 disclosed?
Is CVE-2023-39194 actively exploited?
What is the CVSS score of CVE-2023-39194?
How do I remediate CVE-2023-39194?
Dependency Blast Radius
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