A vulnerability was found in the libreswan library. This security issue occurs when an IKEv1 Aggressive Mode packet is received with only unacceptable crypto algorithms, and the response packet is not sent with a zero responder SPI. When a subsequent packet is received where the sender reuses the libreswan responder SPI as its own initiator SPI, the pluto daemon state machine crashes. No remote code execution is possible. This CVE exists because of a CVE-2023-30570 security regression for libreswan package in Red Hat Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2.

The remote Oracle Linux 8 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2023-3107 advisory.

    - Fix CVE-2023-30570: Malicious IKEv1 Aggressive Mode packets can crash       libreswan

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 8 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2023:3107 advisory.

  - A vulnerability was found in the libreswan library. This security issue occurs when an IKEv1 Aggressive     Mode packet is received with only unacceptable crypto algorithms, and the response packet is not sent with     a zero responder SPI. When a subsequent packet is received where the sender reuses the libreswan responder     SPI as its own initiator SPI, the pluto daemon state machine crashes. No remote code execution is     possible. This CVE exists because of a CVE-2023-30570 security regression for libreswan package in Red Hat     Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2. (CVE-2023-2295)

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 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2023:3107 advisory.

  - A vulnerability was found in the libreswan library. This security issue occurs when an IKEv1 Aggressive     Mode packet is received with only unacceptable crypto algorithms, and the response packet is not sent with     a zero responder SPI. When a subsequent packet is received where the sender reuses the libreswan responder     SPI as its own initiator SPI, the pluto daemon state machine crashes. No remote code execution is     possible. This CVE exists because of a CVE-2023-30570 security regression for libreswan package in Red Hat     Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2. (CVE-2023-2295)

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-2023:3148 advisory.

  - A vulnerability was found in the libreswan library. This security issue occurs when an IKEv1 Aggressive     Mode packet is received with only unacceptable crypto algorithms, and the response packet is not sent with     a zero responder SPI. When a subsequent packet is received where the sender reuses the libreswan responder     SPI as its own initiator SPI, the pluto daemon state machine crashes. No remote code execution is     possible. This CVE exists because of a CVE-2023-30570 security regression for libreswan package in Red Hat     Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2. (CVE-2023-2295)

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 9 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2023-3148 advisory.

    - Fix CVE-2023-30570:Malicious IKEv1 Aggressive Mode packets can crash       libreswan

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 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2023:3148 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: Regression of CVE-2023-30570 fixes in the Red Hat Enterprise Linux (CVE-2023-2295)

    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 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2023:3107 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: Regression of CVE-2023-30570 fixes in the Red Hat Enterprise Linux (CVE-2023-2295)

    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.

ID	Name	Product	Family	Severity
176335	Oracle Linux 8 : libreswan (ELSA-2023-3107)	Nessus	Oracle Linux Local Security Checks	high
176124	AlmaLinux 8 : libreswan (ALSA-2023:3107)	Nessus	Alma Linux Local Security Checks	high
176082	Rocky Linux 8 : libreswan (RLSA-2023:3107)	Nessus	Rocky Linux Local Security Checks	high
176056	AlmaLinux 9 : libreswan (ALSA-2023:3148)	Nessus	Alma Linux Local Security Checks	high
175994	Oracle Linux 9 : libreswan (ELSA-2023-3148)	Nessus	Oracle Linux Local Security Checks	high
175943	RHEL 9 : libreswan (RHSA-2023:3148)	Nessus	Red Hat Local Security Checks	high
175894	RHEL 8 : libreswan (RHSA-2023:3107)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2023-2295

high

Tenable Plugins

high

high

high

high

high

high

high