Vulnerability · Published May 28, 2023 · Assigned by mitre
CVE-2023-30570
High 7.5
In plain English
A high-severity security flaw in the libreswan package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.2%top 32.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
pluto in Libreswan before 4.11 allows a denial of service (responder SPI mishandling and daemon crash) via unauthenticated IKEv1 Aggressive Mode packets. The earliest affected version is 3.28.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libreswan | 4.5-1.el8_7.1 | ALSA-2023:2122 |
| AlmaLinux:8 | libreswan | 4.9-3.el8_8 | ALSA-2023:3107 |
| AlmaLinux:9 | libreswan | 4.9-4.el9_2 | ALSA-2023:3148 |
| Debian:12 | libreswan | 4.10-2+deb12u1 | DEBIAN-CVE-2023-30570 |
| Debian:13 | libreswan | 4.11-1 | DEBIAN-CVE-2023-30570 |
| Ubuntu:22.04:LTS | libreswan | no fix listed | UBUNTU-CVE-2023-30570 |
| Ubuntu:24.04:LTS | libreswan | no fix listed | UBUNTU-CVE-2023-30570 |
| Ubuntu:25.10 | libreswan | no fix listed | UBUNTU-CVE-2023-30570 |
| Ubuntu:26.04:LTS | libreswan | no fix listed | UBUNTU-CVE-2023-30570 |
| Ubuntu:26.10 | libreswan | no fix listed | UBUNTU-CVE-2023-30570 |