Debian Linux - strongswan - None

Ubuntu Linux - Double-Free When Destroying Certain Cloned Identities

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-67a9805962 advisory.

    Addresses CVE-2026-47895 which is a theoretical RCE

    ----

    Fixes CVE-2026-25075, CVE-2026-35328, CVE-2026-35329, CVE-2026-35330, CVE-2026-35331, CVE-2026-35332,     CVE-2026-35333, CVE-2026-35334

    ----

    Update to address CVE-2025-9615 and CVE-2025-62291


Tenable has extracted the preceding description block directly from the Fedora 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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2459-1 advisory.

    This update for strongswan fixes the following issues

    - CVE-2026-35328: infinite loop when handling supported versions TLS extension (bsc#1261712).
    - CVE-2026-35329: null pointer dereference when processing padding in PKCS#7 (bsc#1261717).
    - CVE-2026-35330: integer underflow when handling EAP-SIM/AKA attributes (bsc#1261705).
    - CVE-2026-35331: accepting certificates violating name constraints (bsc#1261718).
    - CVE-2026-35332: null pointer dereference when handling ECDH public value in TLS (bsc#1261708).
    - CVE-2026-35333: integer underflow when handling RADIUS attributes (bsc#1261706).
    - CVE-2026-35334: possible null pointer dereference in RSA decryption (bsc#1261720).
    - CVE-2026-47895: double-free when destroying certain cloned identities (bsc#1266360).

Tenable has extracted the preceding description block directly from the SUSE 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 Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-284c049f7f advisory.

    Addresses CVE-2026-47895 which is a theoretical RCE

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

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2368-1 advisory.

    This update for strongswan fixes the following issues

    - CVE-2026-35328: infinite loop when handling supported versions TLS extension (bsc#1261712).
    - CVE-2026-35329: null pointer dereference when processing padding in PKCS#7 (bsc#1261717).
    - CVE-2026-35330: integer underflow when handling EAP-SIM/AKA attributes (bsc#1261705).
    - CVE-2026-35331: accepting certificates violating name constraints (bsc#1261718).
    - CVE-2026-35332: null pointer dereference when handling ECDH public value in TLS (bsc#1261708).
    - CVE-2026-35333: integer underflow when handling RADIUS attributes (bsc#1261706).
    - CVE-2026-35334: possible null pointer dereference in RSA decryption (bsc#1261720).
    - CVE-2026-47895: double-free when destroying certain cloned identities (bsc#1266360).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2026:2312-1 advisory.

    This update for strongswan fixes the following issue

    - CVE-2026-47895: double-free when destroying certain cloned identities (bsc#1266360).

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

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

The remote Debian 12 / 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6330 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6330-1                   security@debian.org     https://www.debian.org/security/                        Yves-Alexis Perez     June 08, 2026                         https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : strongswan     CVE ID         : CVE-2026-47895     Debian Bug     :

    Elliott Childre identified a vulnerability in strongSwan, an IKE/IPsec suite.
    The bug happens when cloning certain identities and can lead to a double-free,     a daemon crash (leading to denial of service) and potentially remote code     execution.

    Upstream lists several mitigations:
    - - Servers that don't use EAP or XAuth authentication are not vulnerable to       remote attacks.
    - - Servers that use EAP authentication but delegate it to a RADIUS server and       don't request an EAP-Identity themselves are not vulnerable either.  However,       note that the `eap-radius` plugin parses `Class` and `Filter-Id` attributes       as group identities if enabled, in which case a rogue RADIUS server is able       to trigger the issue.
    - - Servers that use IKEv1 with XAuth are not vulnerable unless they use the       `xauth-eap` plugin.

    For the oldstable distribution (bookworm), this problem has been fixed     in version 5.9.8-5+deb12u5.

    For the stable distribution (trixie), this problem has been fixed in     version 6.0.1-6+deb13u6.

    We recommend that you upgrade your strongswan packages.

    For the detailed security status of strongswan please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/strongswan

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

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

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

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8407-1 advisory.

    Elliott Childre discovered that strongSwan incorrectly handled the cloning of certain identities. A remote     attacker could use this issue to cause strongSwan to crash, resulting in a denial of service, or possibly     execute arbitrary code.

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

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

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  CVE-2026-47895


The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the a207a367-6359-11f1-8c57-000af7b98cf6 advisory.

    R. Elliott Childre reports:
    The clone() method of the identification_t class doesn't correctly handle identities that have an empty     but             non-NULL encoding. Both objects will point to the same location, resulting in a double-free once     the second object             is destroyed. This can lead to a crash and could potentially be exploitable for remote code     execution. Affected are             all strongSwan versions since 4.3.3.

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

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - R. Elliott Childre reports: The clone() method of the identification_t class doesn't correctly handle     identities that have an empty but         non-NULL encoding. Both objects will point to the same location,     resulting in a double-free once the second object         is destroyed. This can lead to a crash and could     potentially be exploitable for remote code execution. Affected are         all strongSwan versions since     4.3.3. (CVE-2026-47895)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
322837	Fedora 43 : strongswan (2026-67a9805962)	Nessus	Fedora Local Security Checks	high
321918	SUSE SLES15 Security Update : strongswan (SUSE-SU-2026:2459-1)	Nessus	SuSE Local Security Checks	high
321879	Fedora 44 : strongswan (2026-284c049f7f)	Nessus	Fedora Local Security Checks	high
321041	SUSE SLES15 Security Update : strongswan (SUSE-SU-2026:2368-1)	Nessus	SuSE Local Security Checks	high
321026	SUSE SLES12 Security Update : strongswan (SUSE-SU-2026:2312-1)	Nessus	SuSE Local Security Checks	high
320467	Debian dsa-6330 : charon-cmd - security update	Nessus	Debian Local Security Checks	critical
320410	Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : strongSwan vulnerability (USN-8407-1)	Nessus	Ubuntu Local Security Checks	critical
443035	Alpine: multiple py3-vici packages, multiple strongswan packages: security update to 6.0.7-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	critical
443035	Alpine: multiple py3-vici packages, multiple strongswan packages: security update to 6.0.7-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	critical
320012	FreeBSD : strongSwan -- Double-free when destroying certain cloned identities that can lead to remote code execution (a207a367-6359-11f1-8c57-000af7b98cf6)	Nessus	FreeBSD Local Security Checks	critical
319688	Linux Distros Unpatched Vulnerability : CVE-2026-47895	Nessus	Misc.	critical

Detections

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CVE-2026-47895

high

Tenable Plugins

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