SARA / Free Tools / CVE / CVE-2023-39194

CVE-2023-39194 — A flaw was found in the XFRM subsystem in the Linux kernel

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 re

CVSS
3.2 LOW
EPSS
1.00% (top 20.00%)
CWE
CWE-125
Published
2023-10-09T17:57:50.354Z
Last modified
2025-11-06T20:01:52.681Z
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N

01What is this vulnerability?

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.

02Affected products

VendorProductVersions
Red HatRed Hat Enterprise Linux 80:4.18.0-553.rt7.342.el8_10
Red HatRed Hat Enterprise Linux 80:4.18.0-553.el8_10
Red HatRed Hat Enterprise Linux 90:5.14.0-427.13.1.el9_4
Red HatRed Hat Enterprise Linux 90:5.14.0-427.13.1.el9_4
Red HatRed Hat Enterprise Linux 6unspecified
Red HatRed Hat Enterprise Linux 7unspecified
Red HatRed Hat Enterprise Linux 7unspecified
Red HatRed Hat Enterprise Linux 9unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

Want this in your SOAR or SIEM?
SARA's API returns EPSS, CVSS, KEV, and an analyst-grade summary in one call.
Read the API reference →