Denial Of Service (DoS)

libreswan is vulnerable to Denial of Service DoS attacks. This vulnerability exists in the pluto/ikev1.c file when processing IKEv1 Quick Mode requests. An attacker can exploit this vulnerability by sending a specially crafted IKEv1 Quick Mode packet to the libreswan server, which could cause the...

NULL Pointer Dereference

libreswan is vulnerable to NULL Pointer Dereference. The vulnerability occurs when a malformed IKEv1 Delete/Notify packet is received resulting in a crash or denial of service if sent continuously...

[SECURITY] Fedora 38 Update: libreswan-4.12-1.fc38

Libreswan is a free implementation of IPsec & 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. Everything passing through the...

[SECURITY] Fedora 37 Update: libreswan-4.12-1.fc37

Libreswan is a free implementation of IPsec & 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. Everything passing through the...

Fedora 38 : libreswan (2023-ddd6e6b49b)

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-ddd6e6b49b advisory. Update to 4.12 for CVE-2023-38710, CVE-2023-38711 and CVE-2023-38712 addressing post-authentication denial of service attacks Tenable has extracted...

Fedora: Security Advisory for libreswan (FEDORA-2023-dbc6d8a124)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Fedora 37 : libreswan (2023-dbc6d8a124)

The remote Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-dbc6d8a124 advisory. Update to 4.12 for CVE-2023-38710, CVE-2023-38711 and CVE-2023-38712 addressing post-authentication denial of service attacks Tenable has extracted...

Fedora: Security Advisory for libreswan (FEDORA-2023-ddd6e6b49b)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CVE-2023-38712

A NULL pointer dereference vulnerability was found in the Libreswan package. 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...

CVE-2023-38711

A NULL pointer dereference flaw was found in Libreswan when processing IKEv1 Quick Mode requests. When an IKEv1 Quick Mode connection configured with IDIPV4ADDR or IDIPV6ADDR receives an IDcr payload with IDFQDN, it triggers a NULL pointer dereference error. This flaw allows a malicious client or...

CVE-2023-38710

An assertion failure flaw was found in the Libreswan package that occurs when processing IKEv2 REKEY requests. When an IKEv2 Child SA REKEY packet contains an invalid IPsec protocol ID number of 0 or 1, an error notification INVALIDSPI is sent back. The notify payload's protocol ID is copied from...

PT-2023-5266 · Libreswan +5 · Libreswan +5

Name of the Vulnerable Software and Affected Versions: Libreswan versions 3.20 through 4.12 Description: An issue was discovered in Libreswan when an IKEv2 Child SA REKEY packet contains an invalid IPsec protocol ID number of 0 or 1. This causes an error notify INVALID SPI to be sent back, but th...

PT-2023-5265 · Libreswan +5 · Libreswan +5

Name of the Vulnerable Software and Affected Versions: Libreswan versions prior to 4.12 Description: An issue was discovered in Libreswan when an IKEv1 Quick Mode connection configured with ID IPV4 ADDR or ID IPV6 ADDR receives an IDcr payload with ID FQDN, causing a NULL pointer dereference. Thi...

PT-2023-5263 · Libreswan +5 · Libreswan +5

Name of the Vulnerable Software and Affected Versions: Libreswan versions 3.x and 4.x before 4.12 Description: An issue was discovered in Libreswan when an IKEv1 ISAKMP SA Informational Exchange packet contains a Delete/Notify payload followed by further Notifies that act on the ISAKMP SA, such a...

OESA-2023-1318 libreswan security update

Libreswan is an implementation of IKEv1 and IKEv2 for IPsec. 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. Everything passing through the...

pluto in Libreswan before 4.11 allows a denial of service (responder SPI mishandling and daemon crash) via unauthenticated IKEv1 Aggressive Mode packets. The earliest affected version is 3.28.

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CVE-2023-30570

pluto in Libreswan before 4.11 allows a denial of service responder SPI mishandling and daemon crash via unauthenticated IKEv1 Aggressive Mode packets. The earliest affected version is 3.28...

CVE-2023-30570

pluto in Libreswan before 4.11 allows a denial of service responder SPI mishandling and daemon crash via unauthenticated IKEv1 Aggressive Mode packets. The earliest affected version is 3.28...

AZL-34934 CVE-2023-30570 affecting package libreswan for versions less than 4.15-1

pluto in Libreswan before 4.11 allows a denial of service responder SPI mishandling and daemon crash via unauthenticated IKEv1 Aggressive Mode packets. The earliest affected version is 3.28...

AZL-26873 CVE-2023-30570 affecting package libreswan for versions less than 4.14-1

pluto in Libreswan before 4.11 allows a denial of service responder SPI mishandling and daemon crash via unauthenticated IKEv1 Aggressive Mode packets. The earliest affected version is 3.28...