# ELSA-2023-2633: libreswan security update

ELSA-2023-2633, released May 17, 2023, fixes 1 CVE in libreswan (version 0:4.9-2.0.1.el9_2). None of them is reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/fix/linux/elsa-2023-2633
- Platform: Linux
- Released: May 17, 2023
- Priority: Routine (Closes CVE-2023-23009)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://linux.oracle.com/errata/ELSA-2023-2633.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libreswan](https://patchblox.com/security/data/product/linux/libreswan.md) | ol 9 | 0:4.9-2.0.1.el9_2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-23009](https://patchblox.com/security/data/cve/CVE-2023-23009.md) | Routine | libreswan: Libreswan is an implementation of IPsec and IKE for Linux | 6.5 | 0.0161 |  |

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Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo