CVE-2024-3652
No exploitation reported by the sources we read.
- Published2024-04-11
- Fixed in4.15
- WeaknessCWE-404
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an assertion failure and crashes and restarts. IKEv2 connections are not affected.
Timeline
dates in UTC- 2024-04-1102:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-3652?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-3652?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 4.15 | ≥ 3.22, < 4.15 | 4.15 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- libreswanAlmaLinux:9all versions · fixed in 4.12-2.el9_4.1
- libreswanAlmaLinux:8all versions · fixed in 4.12-2.el8_10.4
Vendor advisories
Red Hat Security Advisory: libreswan security update
Red Hat Security Advisory: libreswan security update
Red Hat Security Advisory: libreswan security update
Red Hat Security Advisory: libreswan security update
Red Hat Security Advisory: libreswan security update
Red Hat Security Advisory: libreswan security update
Fix
- Update Libreswan to 4.15
- Vendor fix Red Hat Product Security RHSA-2024:4431 · 13 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
- Workaround from the vendor Red Hat Product Security RHSA-2024:4431 · 13 productsAn esp= line using a common IKEv1 algorithm list can be added to all IKEv1 based connections. An example of such an esp= line could be: ~~~ esp=aes-sha2_512,aes-sha1,aes-sha2_256,aes-md5,3des-sha1,3des-md5 ~~~
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Published
- 2024-04-11
- Last Modified
- 2026-06-17
- NVD status
- Analyzed
Frequently asked questions
What is CVE-2024-3652?
Is CVE-2024-3652 actively exploited?
What is the CVSS score for CVE-2024-3652?
Running libreswan? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.