# CVE-2022-23094: libreswan: Libreswan is an implementation of IPsec and IKE for Linux

CVE-2022-23094 is fixed in libreswan on 1 platform, first by DSA-5048-1, released January 15, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-23094
- Priority: High
- CVSS: 7.5 (Important)
- EPSS: 0.0263
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 15, 2022

## Description

Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).  Security Fix(es):  * libreswan: Malicious IKEv1 packet can cause libreswan to restart (CVE-2022-23094)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libreswan Debian 11.6 (bullseye) | 4.3-1+deb11u1 | [DSA-5048-1](https://patchblox.com/security/data/fix/linux/dsa-5048-1.md) | Jan 15, 2022 |
| Linux | libreswan Debian 12.15 (bookworm) | 4.6-1 | [DEBIAN-CVE-2022-23094](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23094.md) | Jan 15, 2022 |
| Linux | libreswan Debian 13.5 (trixie) | 4.6-1 | [DEBIAN-CVE-2022-23094](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23094.md) | Jan 15, 2022 |
| Linux | libreswan RHEL 8 | 0:4.4-4.el8_5 | [RHSA-2022:0199](https://patchblox.com/security/data/fix/linux/rhsa-2022-0199.md) | Jan 19, 2022 |
| Linux | libreswan almalinux 8 | 4.4-4.el8_5 | [ALSA-2022:0199](https://patchblox.com/security/data/fix/linux/alsa-2022-0199.md) | Jan 19, 2022 |
| Linux | libreswan ol 8 | 0:4.4-4.0.1.el8_5 | [ELSA-2022-0199](https://patchblox.com/security/data/fix/linux/elsa-2022-0199.md) | Jan 20, 2022 |
| Linux | libreswan rocky 8 | 0:4.4-4.el8_5 | [RLSA-2022:0199](https://patchblox.com/security/data/fix/linux/rlsa-2022-0199.md) | Jan 19, 2022 |

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Data as of 2026-11-08T19:12:23Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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