CVE catalog
CVE-2023-26463
strongswan: CVE-2023-26463
- Severity
- Critical · CVSS 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.28% · Oct 25, 2026
strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named "public" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | strongswan | sid | 6.1.0-2 | fixed |
| Debian | strongswan | forky | 6.1.0-2 | fixed |
| Debian | strongswan | trixie | 6.0.1-6+deb13u6 | fixed |
| Debian | strongswan | trixie-security | 6.0.1-6+deb13u7 | fixed |
| Debian | strongswan | bookworm | 5.9.8-5+deb12u5 | fixed |
| Debian | strongswan | bookworm-security | 5.9.8-5+deb12u5 | fixed |
| Alpine | strongswan | 3.17 | 5.9.10-r0 | fixed |
| Alpine | strongswan | 3.18 | 5.9.10-r0 | fixed |
| Alpine | strongswan | 3.19 | 5.9.10-r0 | fixed |
| Alpine | strongswan | 3.20 | 5.9.10-r0 | fixed |
| Alpine | strongswan | 3.21 | 5.9.10-r0 | fixed |
| Alpine | strongswan | 3.22 | 5.9.10-r0 | fixed |
| Alpine | strongswan | 3.23 | 5.9.10-r0 | fixed |
| Alpine | strongswan | 3.24 | 5.9.10-r0 | fixed |
| Opensuse | strongswan | tumbleweed | 5.9.10-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | strongswan | source | sid | 5.9.8-4 | not yet assigned | Not reported | Not reported |
| Debian | strongswan | source | forky | 5.9.8-4 | not yet assigned | Not reported | Not reported |
| Debian | strongswan | source | trixie | 5.9.8-4 | not yet assigned | Not reported | Not reported |
| Debian | strongswan | source | bookworm | 5.9.8-4 | not yet assigned | Not reported | Not reported |
| Alpine | strongswan | apk | 3.17 | 5.9.10-r0 | Not reported | ALPINE-CVE-2023-26463 | Not reported |
| Alpine | strongswan | apk | 3.18 | 5.9.10-r0 | Not reported | ALPINE-CVE-2023-26463 | Not reported |
| Alpine | strongswan | apk | 3.19 | 5.9.10-r0 | Not reported | ALPINE-CVE-2023-26463 | Not reported |
| Alpine | strongswan | apk | 3.20 | 5.9.10-r0 | Not reported | ALPINE-CVE-2023-26463 | Not reported |
| Alpine | strongswan | apk | 3.21 | 5.9.10-r0 | Not reported | ALPINE-CVE-2023-26463 | Not reported |
| Alpine | strongswan | apk | 3.22 | 5.9.10-r0 | Not reported | ALPINE-CVE-2023-26463 | Not reported |
| Alpine | strongswan | apk | 3.23 | 5.9.10-r0 | Not reported | ALPINE-CVE-2023-26463 | Not reported |
| Alpine | strongswan | apk | 3.24 | 5.9.10-r0 | Not reported | ALPINE-CVE-2023-26463 | Not reported |
| Opensuse | strongswan | rpm | tumbleweed | 5.9.10-1.1 | Not reported | OPENSUSE-SU-2024:12749-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_12749-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2023-26463]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-26463]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:12749-1]
- [https://security-tracker.debian.org/tracker/CVE-2023-26463]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-0569.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]