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    CVE-2013-2944

    strongSwan 4.3.5 through 5.0.3, when using the OpenSSL plugin for ECDSA signature verification, allows remote attackers to authenticate as other users via an invalid signature.

    Published:May 2, 2013
    Last Modified:Apr 11, 2025
    EPS:May 2, 2013
    EPSS Score:0.00319
    CVSS Score:4.9

    Affected Products

    Vendor
    Strongswan
    Product
    Strongswan

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

    CVE-2026-78135 (CVSS 5.6) — libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state machine. Because…
    CVE-2026-78134 (CVSS 7.1) — strongSwan 4.5.0 through 6.0.7 has Incorrect Access Control in the eap-ttls and eap-peap plugins because there…
    CVE-2026-78133 (CVSS 7.5) — libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.…
    CVE-2026-78132 (CVSS 7.5) — strongSwan 5.1.3 through 6.0.7 has an infinite loop in the x509 plugin's attribute certificate parser for ietf…
    CVE-2026-78131 (CVSS 3.7) — strongSwan 4.2.0 through 6.0.7 has a missing release of memory after its effective lifetime in the x509 plugin…
    CVE-2026-78130 (CVSS 7.5) — strongSwan 4.2.0 through 6.0.7 has a NULL pointer dereference in the x509 plugin's attribute certificate parse…
    CVE-2026-78129 (CVSS 5.9) — strongSwan 4.6.2 through 6.0.7 has an infinite loop in PKCS#5 decryption.…
    CVE-2026-78127 (CVSS 3.7) — libcharon in strongSwan 4.1.2 through 6.0.7 has a missing release of memory after its effective lifetime in th…
    CVE-2026-78126 (CVSS 5.9) — strongSwan 4.1.10 through 6.0.7 allows a NULL pointer dereference in the eap-aka plugin.…
    CVE-2026-78124 (CVSS 3.7) — strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lac…

    References

    http://download.strongswan.org/patches/10_openssl_ecdsa_signature_patch/strongswan-4.3.5-5.0.3_openssl_ecdsa_signature.patch
    http://lists.opensuse.org/opensuse-updates/2013-05/msg00014.html
    http://lists.opensuse.org/opensuse-updates/2013-06/msg00010.html
    http://lists.opensuse.org/opensuse-updates/2013-06/msg00121.html
    http://www.debian.org/security/2013/dsa-2665
    http://www.securityfocus.com/bid/59580
    http://www.strongswan.org/blog/2013/04/30/strongswan-5.0.4-released-%28cve-2013-2944%29.html
    http://download.strongswan.org/patches/10_openssl_ecdsa_signature_patch/strongswan-4.3.5-5.0.3_openssl_ecdsa_signature.patch
    http://lists.opensuse.org/opensuse-updates/2013-05/msg00014.html
    http://lists.opensuse.org/opensuse-updates/2013-06/msg00010.html
    http://lists.opensuse.org/opensuse-updates/2013-06/msg00121.html
    http://www.debian.org/security/2013/dsa-2665
    http://www.securityfocus.com/bid/59580
    http://www.strongswan.org/blog/2013/04/30/strongswan-5.0.4-released-%28cve-2013-2944%29.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High