The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an assertion failure and crashes and restarts. IKEv2 connections are not affected.

The remote NewStart CGSL host, running version MAIN 7.02, has libreswan packages installed that are affected by multiple vulnerabilities:

  - An issue was discovered in Libreswan 3.x and 4.x before 4.12. When an IKEv1 ISAKMP SA Informational     Exchange packet contains a Delete/Notify payload followed by further Notifies that act on the ISAKMP SA,     such as a duplicated Delete/Notify message, a NULL pointer dereference on the deleted state causes the     pluto daemon to crash and restart. (CVE-2023-38712)

  - An issue was discovered in Libreswan before 4.12. When an IKEv2 Child SA REKEY packet contains an invalid     IPsec protocol ID number of 0 or 1, an error notify INVALID_SPI is sent back. The notify payload's     protocol ID is copied from the incoming packet, but the code that verifies outgoing packets fails an     assertion that the protocol ID must be ESP (2) or AH(3) and causes the pluto daemon to crash and restart.
    NOTE: the earliest affected version is 3.20. (CVE-2023-38710)

  - An issue was discovered in Libreswan before 4.12. When an IKEv1 Quick Mode connection configured with     ID_IPV4_ADDR or ID_IPV6_ADDR receives an IDcr payload with ID_FQDN, a NULL pointer dereference causes a     crash and restart of the pluto daemon. NOTE: the earliest affected version is 4.6. (CVE-2023-38711)

  - The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without     specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an     assertion failure and crashes and restarts. IKEv2 connections are not affected. (CVE-2024-3652)

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

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2024:0207 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2024-2357:
    The Libreswan Project was notified of an issue causing libreswan to restart under some IKEv2 retransmit     scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot     find a matching configured secret. When such a connection is automatically added on startup using the     auto= keyword, it can cause repeated crashes leading to a Denial of Service.

    CVE-2024-3652:
    The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without     specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an     assertion failure and crashes and restarts. IKEv2 connections are not affected.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux 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 version of libreswan installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-3652 advisory.

  - The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without     specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an     assertion failure and crashes and restarts. IKEv2 connections are not affected. (CVE-2024-3652)

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.

  - The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without     specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an     assertion failure and crashes and restarts. IKEv2 connections are not affected. (CVE-2024-3652)

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

The remote Fedora 41 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2024-342c3cc98f advisory.

    Automatic update for libreswan-4.15-2.fc41.

    ##### **Changelog**

    ```
    * Sat Jun 22 2024 Paul Wouters <paul.wouters@aiven.io> - 4.15-2
    - Add libreswan-4.15-ipsec_import.patch
    * Sat Jun 22 2024 Paul Wouters <paul.wouters@aiven.io> - 4.15-1
    - Update libreswan to 4.15 for CVE-2024-3652
    - Resolves rhbz#2274448 CVE-2024-3652 libreswan: IKEv1 default AH/ESP       responder can crash and restart
    - Allow ipsec import to try importing PKCS#12 non-interactively if there       is no password

    ```

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 version of libreswan installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-3652 advisory.

  - The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without     specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an     assertion failure and crashes and restarts. IKEv2 connections are not affected. (CVE-2024-3652)

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

The version of libreswan installed on the remote host is prior to 3.25-4.8. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2024-2596 advisory.

    The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without     specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an     assertion failure and crashes and restarts. IKEv2 connections are not affected. (CVE-2024-3652)

Tenable has extracted the preceding description block directly from the tested product 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 Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:4431 advisory.

    Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and     uses strong cryptography to provide both authentication and encryption services. These services allow you     to build secure tunnels through untrusted networks such as virtual private network (VPN).

    Security Fix(es):

    * libreswan: IKEv1 default AH/ESP responder can crash and restart (CVE-2024-3652)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 AlmaLinux 8 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2024:4376 advisory.

    * libreswan: IKEv1 default AH/ESP responder can crash and restart (CVE-2024-3652)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:4417 advisory.

    Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and     uses strong cryptography to provide both authentication and encryption services. These services allow you     to build secure tunnels through untrusted networks such as virtual private network (VPN).

    Security Fix(es):

    * libreswan: IKEv1 default AH/ESP responder can crash and restart (CVE-2024-3652)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 Oracle Linux 8 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2024-4376 advisory.

    [4.12-2.0.1.4]
    - Add libreswan-oracle.patch to detect Oracle Linux distro

    [4.12-2.4]
    - Fix CVE-2024-3652 (RHEL-32482)

Tenable has extracted the preceding description block directly from the Oracle Linux 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 Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:4376 advisory.

    Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and     uses strong cryptography to provide both authentication and encryption services. These services allow you     to build secure tunnels through untrusted networks such as virtual private network (VPN).

    Security Fix(es):

    * libreswan: IKEv1 default AH/ESP responder can crash and restart (CVE-2024-3652)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:4377 advisory.

    Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and     uses strong cryptography to provide both authentication and encryption services. These services allow you     to build secure tunnels through untrusted networks such as virtual private network (VPN).

    Security Fix(es):

    * libreswan: IKEv1 default AH/ESP responder can crash and restart (CVE-2024-3652)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2024:4050 advisory.

    * libreswan: IKEv1 default AH/ESP responder can crash and restart (CVE-2024-3652)

Tenable has extracted the preceding description block directly from the Rocky Linux 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 Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:4200 advisory.

    Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and     uses strong cryptography to provide both authentication and encryption services. These services allow you     to build secure tunnels through untrusted networks such as virtual private network (VPN).

    Security Fix(es):

    * libreswan: IKEv1 default AH/ESP responder can crash and restart (CVE-2024-3652)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 Fedora 40 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-05a6ab143e advisory.

    Update to 4.15 for CVE-2024-3652

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 Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-07c9cfd337 advisory.

    Update to 4.15 for CVE-2024-3652

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 Oracle Linux 9 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2024-4050 advisory.

    [4.12-2.0.1.1]
    - Add libreswan-oracle.patch to detect Oracle Linux distro

    [4.12-2.1]
    - Fix CVE-2024-3652 (RHEL-40102)

Tenable has extracted the preceding description block directly from the Oracle Linux 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 AlmaLinux 9 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2024:4050 advisory.

    * libreswan: IKEv1 default AH/ESP responder can crash and restart (CVE-2024-3652)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:4050 advisory.

    Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and     uses strong cryptography to provide both authentication and encryption services. These services allow you     to build secure tunnels through untrusted networks such as virtual private network (VPN).

    Security Fix(es):

    * libreswan: IKEv1 default AH/ESP responder can crash and restart (CVE-2024-3652)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2024-621 advisory.

    The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without     specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an     assertion failure and crashes and restarts. IKEv2 connections are not affected. (CVE-2024-3652)

Tenable has extracted the preceding description block directly from the tested product 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 version of Libreswan installed on the remote host is between 3.22 and 4.14, or a 5.0 release candidate prior to 5.0 . It is, therefore, affected by a denial of service (DoS) vulnerability. The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an assertion failure and crashes and restarts. IKEv2 connections are not affected.

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

ID	Name	Product	Family	Severity
242820	NewStart CGSL MAIN 7.02 : libreswan Multiple Vulnerabilities (NS-SA-2025-0120)	Nessus	NewStart CGSL Local Security Checks	medium
236169	Alibaba Cloud Linux 3 : 0207: libreswan (ALINUX3-SA-2024:0207)	Nessus	Alibaba Cloud Linux Local Security Checks	medium
233734	Azure Linux 3.0 Security Update: libreswan (CVE-2024-3652)	Nessus	Azure Linux Local Security Checks	medium
229215	Linux Distros Unpatched Vulnerability : CVE-2024-3652	Nessus	Misc.	medium
211090	Fedora 41 : libreswan (2024-342c3cc98f)	Nessus	Fedora Local Security Checks	medium
210019	CBL Mariner 2.0 Security Update: libreswan (CVE-2024-3652)	Nessus	MarinerOS Local Security Checks	medium
202980	Amazon Linux 2 : libreswan (ALAS-2024-2596)	Nessus	Amazon Linux Local Security Checks	medium
202077	RHEL 9 : libreswan (RHSA-2024:4431)	Nessus	Red Hat Local Security Checks	medium
202067	AlmaLinux 8 : libreswan (ALSA-2024:4376)	Nessus	Alma Linux Local Security Checks	medium
202005	RHEL 8 : libreswan (RHSA-2024:4417)	Nessus	Red Hat Local Security Checks	medium
201991	Oracle Linux 8 : libreswan (ELSA-2024-4376)	Nessus	Oracle Linux Local Security Checks	medium
201959	RHEL 8 : libreswan (RHSA-2024:4376)	Nessus	Red Hat Local Security Checks	medium
201955	RHEL 9 : libreswan (RHSA-2024:4377)	Nessus	Red Hat Local Security Checks	medium
201247	Rocky Linux 9 : libreswan (RLSA-2024:4050)	Nessus	Rocky Linux Local Security Checks	medium
201183	RHEL 8 : libreswan (RHSA-2024:4200)	Nessus	Red Hat Local Security Checks	medium
201177	Fedora 40 : libreswan (2024-05a6ab143e)	Nessus	Fedora Local Security Checks	medium
201175	Fedora 39 : libreswan (2024-07c9cfd337)	Nessus	Fedora Local Security Checks	medium
200884	Oracle Linux 9 : libreswan (ELSA-2024-4050)	Nessus	Oracle Linux Local Security Checks	medium
200877	AlmaLinux 9 : libreswan (ALSA-2024:4050)	Nessus	Alma Linux Local Security Checks	medium
200872	RHEL 9 : libreswan (RHSA-2024:4050)	Nessus	Red Hat Local Security Checks	medium
197960	Amazon Linux 2023 : libreswan (ALAS2023-2024-621)	Nessus	Amazon Linux Local Security Checks	medium
193875	Libreswan 3.22 < 4.15 / 5.0rc1 < 5.0 DoS	Nessus	Misc.	medium

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