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OpenAdvisories
Critical · 9.8 CVE-2023-26463 EUVD-2023-30283GHSA-vcx9-7pcc-q8c7

strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named "public" for two different purposes wi…

Published Apr 14, 2023 · Updated Feb 13, 2025 · Assigned by mitre

Description

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.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 strongswan 5.9.8-4 —
Debian 13 strongswan 5.9.8-4 —
Debian 12 strongswan 5.9.8-4 —
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed strongswan 5.9.10-1.1 openSUSE-SU-2024:12749-1
ReleasePackageFixed inAdvisory
Alpine v3.24 strongswan 5.9.10-r0 —
Alpine v3.23 strongswan 5.9.10-r0 —
Alpine v3.22 strongswan 5.9.10-r0 —
Alpine v3.21 strongswan 5.9.10-r0 —
Alpine v3.20 strongswan 5.9.10-r0 —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Alpine v3.19 strongswan 5.9.10-r0 —
Alpine v3.18 strongswan 5.9.10-r0 —
Alpine v3.17 strongswan 5.9.10-r0 —

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) strongswan 5.9.10-1 —

Advisories 2

References