CVE-2024-2357
No exploitation reported by the sources we read.
- Published2024-03-11
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 under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup using the auto= keyword, it can cause repeated crashes leading to a Denial of Service.
Timeline
dates in UTC- 2024-03-1120:15CVE 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-2024-2357?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-2357?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
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 4.12-1.el9_3.1.alma.1
- libreswanAlmaLinux:9all versions · fixed in 4.12-2.el9_4.alma.1
- libreswanAlmaLinux:8all versions · fixed in 4.12-2.el8_9.2.alma.1
Vendor advisories
Red Hat Security Advisory: libreswan security update
Red Hat Security Advisory: libreswan security and bug fix 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 and bug fix update
Fix
- Vendor fix Red Hat Product Security RHSA-2024:10594 · 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
- Vendor fix Red Hat Product Security RHSA-2024:2085 · 13 productsFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258
- Vendor fix Red Hat Product Security RHSA-2024:2033 · 13 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
- Workaround from the vendor Red Hat Product Security RHSA-2024:10594 · 13 productsAs a workaround to prevent the misconfiguration from causing the crash, place an unguessable long random "catch-all" secret in /etc/ipsec.secrets, for example, using the following command: echo -e "# CVE-2024-2357 workaround\n: PSK \"$(openssl rand -hex 32)\"" >> /etc/ipsec.secrets This will ensu…
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
- 2024-03-11
- Last Modified
- 2026-06-17
- NVD status
- Deferred
Frequently asked questions
What is CVE-2024-2357?
Is CVE-2024-2357 actively exploited?
What is the CVSS score for CVE-2024-2357?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.