The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:14887-1 advisory.

  - In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x     before 5.7.0, the RSA implementation based on GMP does not reject excess data after the encoded algorithm     OID during PKCS#1 v1.5 signature verification. Similar to the flaw in the same version of strongSwan     regarding digestAlgorithm.parameters, a remote attacker can forge signatures when small public exponents     are being used, which could lead to impersonation when only an RSA signature is used for IKEv2     authentication. (CVE-2018-16151)

  - In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x     before 5.7.0, the RSA implementation based on GMP does not reject excess data in the     digestAlgorithm.parameters field during PKCS#1 v1.5 signature verification. Consequently, a remote     attacker can forge signatures when small public exponents are being used, which could lead to     impersonation when only an RSA signature is used for IKEv2 authentication. This is a variant of     CVE-2006-4790 and CVE-2014-1568. (CVE-2018-16152)

  - The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate.
    (CVE-2018-17540)

  - In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without     actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only     authentication for IKEv2) even without server authentication. (CVE-2021-45079)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Updated to release 5.7.1

Security fix for :

  - CVE-2018-16151

  - CVE-2018-16152

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update of the strongswan package has been released.

The Rocky Linux 8.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_1607 advisory.

    This advisory aggregates security fixes for the strongswan SRPM in CIQ LTS 8.6. It addresses 12 CVEs:
    CVE-2018-16152, CVE-2018-16151, CVE-2013-2944, CVE-2012-2388, CVE-2021-41990, and 7 more.

Tenable has extracted the preceding description block directly from the CIQ security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3771-1 advisory.

    It was discovered that strongSwan incorrectly handled IKEv2 key derivation. A remote attacker could     possibly use this issue to cause strongSwan to crash, resulting in a denial of service. (CVE-2018-10811)

    Sze Yiu Chau discovered that strongSwan incorrectly handled parsing OIDs in the gmp plugin. A remote     attacker could possibly use this issue to bypass authorization. (CVE-2018-16151)

    Sze Yiu Chau discovered that strongSwan incorrectly handled certain parameters fields in the gmp plugin. A     remote attacker could possibly use this issue to bypass authorization. (CVE-2018-16152)

    It was discovered that strongSwan incorrectly handled the stroke plugin. A local administrator could use     this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2018-5388)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update for strongswan fixes the following issues :

Security issues fixed :

CVE-2018-5388: Fixed a buffer underflow which may allow to a remote attacker with local user credentials to resource exhaustion and denial of service while reading from the socket (bsc#1094462).

CVE-2018-10811: Fixed a denial of service during the IKEv2 key derivation if the openssl plugin is used in FIPS mode and HMAC-MD5 is negotiated as PRF (bsc#1093536).

CVE-2018-16151,CVE-2018-16152: Fixed multiple flaws in the gmp plugin which might lead to authorization bypass (bsc#1107874).

CVE-2018-17540: Fixed an improper input validation in gmp plugin (bsc#1109845).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for strongswan provides the following fixes :

Security issues fixed :

CVE-2018-5388: Fixed a buffer underflow which may allow to a remote attacker with local user credentials to resource exhaustion and denial of service while reading from the socket (bsc#1094462).

CVE-2018-10811: Fixed a denial of service during the IKEv2 key derivation if the openssl plugin is used in FIPS mode and HMAC-MD5 is negotiated as PRF (bsc#1093536).

CVE-2018-16151,CVE-2018-16152: Fixed multiple flaws in the gmp plugin which might lead to authorization bypass (bsc#1107874).

CVE-2018-17540: Fixed an improper input validation in gmp plugin (bsc#1109845).

Other issues addressed: Fixed some client fails when the scep server URL is used with HTTPS protocol (bsc#1071853).

Reject Diffie-Hellman key exchanges using primes smaller than 1024 bit.

Handle unexpected informational message from SonicWall. (bsc#1009254)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
134852	SUSE SLED15 / SLES15 Security Update : strongswan (SUSE-SU-2020:0743-1)	Nessus	SuSE Local Security Checks	2020/3/24	2024/3/21	high
158172	SUSE SLES11 Security Update : strongswan (SUSE-SU-2022:14887-1)	Nessus	SuSE Local Security Checks	2022/2/19	2023/7/13	critical
118123	Fedora 27 : strongswan (2018-9caa6528d2)	Nessus	Fedora Local Security Checks	2018/10/16	2024/7/31	high
122028	Photon OS 2.0: Strongswan PHSA-2019-2.0-0125	Nessus	PhotonOS Local Security Checks	2019/2/7	2024/7/22	high
135007	openSUSE Security Update : strongswan (openSUSE-2020-403)	Nessus	SuSE Local Security Checks	2020/3/30	2024/3/20	high
364607	Rocky Linux 8.6 [CIQ] Security Update: perl-vici / python3-vici / strongswan / strongswan-charon-nm / etc Multiple Vulnerabilities (ciqsa-2026_1607)	Nessus	Rocky Linux Local Security Checks	2026/10/12	2026/10/12	critical
117805	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : strongSwan vulnerabilities (USN-3771-1)	Nessus	Ubuntu Local Security Checks	2018/9/27	2026/6/11	high
131306	SUSE SLED15 / SLES15 Security Update : strongswan (SUSE-SU-2019:3056-1)	Nessus	SuSE Local Security Checks	2019/11/26	2024/4/9	high
132009	SUSE SLED12 / SLES12 Security Update : strongswan (SUSE-SU-2019:3266-1)	Nessus	SuSE Local Security Checks	2019/12/12	2024/4/4	high

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