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Name
strongswan
Version
5.9.14
Type
library
Description
strongSwan is an OpenSource IPsec implementation
Licenses
GPL-2.0-only
PURL
-
CPE
cpe:2.3:*:strongswan:strongswan:5.9.14:*:*:*:*:*:*:*
Other Versions#
Patches#
#
Title
Author
Resolve
1
libsimaka: Reject zero-length EAP-SIM/AKA attributes
=?utf-8?q?Lukas_Johannes_M=C3=B6ller?= <research@johannes-moeller.dev>
CVE-2026-35330
2
pkcs5/pkcs7: Avoid NULL pointer dereference when verifying padding
Tobias Brunner <tobias@strongswan.org>
CVE-2026-35329
3
tls-server: Only accept non-empty ECDH public keys with TLS < 1.3
Tobias Brunner <tobias@strongswan.org>
CVE-2026-35332
4
eap-mschapv2: Fix length check for Failure Request packets on
Tobias Brunner <tobias@strongswan.org>
CVE-2025-62291
5
tls-server: Prevent infinite loop if supported versions are too
Tobias Brunner <tobias@strongswan.org>
CVE-2026-35328
6
eap-ttls: Prevent crash if AVP length header field is invalid
Tobias Brunner <tobias@strongswan.org>
CVE-2026-25075
7
libradius: Reject undersized attributes in enumerator
=?utf-8?q?Lukas_Johannes_M=C3=B6ller?= <research@johannes-moeller.dev>
CVE-2026-35333
8
gmp: Avoid crash and timing leaks in PKCS#1 v1.5 decryption
Tobias Brunner <tobias@strongswan.org>
CVE-2026-35334
9
constraints: Case-insensitive matching and reject excluded DN name
Tobias Brunner <tobias@strongswan.org>
CVE-2026-35331
Vulnerabilities#
Name
Analysis
Description
Patched
-
Patched
-
Patched
-
Patched
-
Patched
-
Patched
-
Patched
-
Patched
strongSwan versions 4.5.0 prior to 6.0.5 contain an integer underflow vulnerability in the EAP-TTLS AVP parser that allows unauthenticated remote attackers to cause a denial of service by sending crafted AVP data with invalid length fields during IKEv2 authentication. Attackers can exploit the failure to validate AVP length fields before subtraction to trigger excessive memory allocation or NULL pointer dereference, crashing the charon IKE daemon.
Patched
In the eap-mschapv2 plugin (client-side) in strongSwan before 6.0.3, a malicious EAP-MSCHAPv2 server can send a crafted message of size 6 through 8, and cause an integer underflow that potentially results in a heap-based buffer overflow.