The vulnerability of the VPN protocol library using “IPsec” in libreswan, related to the swapping of the zero pointer, allows a attacker to perform a type of attack known as “denial-of-service attack”.

The vulnerability of the VPN protocol using “IPsec” with libreswan is related to an error in pointer arithmetic during the processing of IKEv1 fast packet exchange. Exploiting this vulnerability allows a remote attacker to perform a type of attack known as a “denial-of-service” attack...

The vulnerability of the VPN protocol library using “IPsec” in libreswan, related to the possibility of successful exploitation, allows an attacker to perform a type of attack known as “denial-of-service attack”.

The vulnerability of the VPN protocol using “IPsec” with libreswan is related to a flaw in the processing of IKEv2 REKEY packets. Exploiting this vulnerability allows an attacker operating remotely to perform a type of attack known as a “denial-of-service” attack...

ROS-20230913-03

A vulnerability in libreswan software is related to a null pointer dereferencing error in the IKEv1 fast mode packets. Exploitation of the vulnerability could allow an attacker, remotely send specially crafted packets to the system and perform a denial-of-service attack. denial-of-service attack...

CVE-2023-38712 affecting package libreswan for versions less than 4.7-5

CVE-2023-38712 affecting package libreswan for versions less than 4.7-5. A patched version of the package is available...

CVE-2023-38710 affecting package libreswan for versions less than 4.7-5

CVE-2023-38710 affecting package libreswan for versions less than 4.7-5. A patched version of the package is available...

CVE-2023-38711 affecting package libreswan for versions less than 4.7-5

CVE-2023-38711 affecting package libreswan for versions less than 4.7-5. A patched version of the package is available...

Oracle Linux 8 : libreswan (ELSA-2019-3391)

The remote Oracle Linux 8 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2019-3391 advisory. 3.29-6.0.1 - Add libreswan-oracle.patch to detect Oracle Linux distro 3.29-6 - Resolves: rhbz1714331 support NSS based IKE KDFs require updated nss for rhbz...

OESA-2023-1581 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. Security Fixes: An issue was discovered in Libreswan before 4.12. When an IKEv2 Child SA REKEY packet contains ...

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.

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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.

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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.

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CVE-2023-38712

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...

CVE-2023-38711

An issue was discovered in Libreswan before 4.12. When an IKEv1 Quick Mode connection configured with IDIPV4ADDR or IDIPV6ADDR receives an IDcr payload with IDFQDN, a NULL pointer dereference causes a crash and restart of the pluto daemon. NOTE: the earliest affected version is 4.6...

CVE-2023-38711

An issue was discovered in Libreswan before 4.12. When an IKEv1 Quick Mode connection configured with IDIPV4ADDR or IDIPV6ADDR receives an IDcr payload with IDFQDN, a NULL pointer dereference causes a crash and restart of the pluto daemon. NOTE: the earliest affected version is 4.6...

AZL-28064 CVE-2023-38710 affecting package libreswan for versions less than 4.7-5

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 INVALIDSPI is sent back. The notify payload's protocol ID is copied from the incoming packet, but the code that verifies outgoing packets...

AZL-34936 CVE-2023-38711 affecting package libreswan for versions less than 4.7-6

An issue was discovered in Libreswan before 4.12. When an IKEv1 Quick Mode connection configured with IDIPV4ADDR or IDIPV6ADDR receives an IDcr payload with IDFQDN, a NULL pointer dereference causes a crash and restart of the pluto daemon. NOTE: the earliest affected version is 4.6...

CVE-2023-38710

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 INVALIDSPI is sent back. The notify payload's protocol ID is copied from the incoming packet, but the code that verifies outgoing packets...

CVE-2023-38712

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...

CVE-2023-38710

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 INVALIDSPI is sent back. The notify payload's protocol ID is copied from the incoming packet, but the code that verifies outgoing packets...

AZL-34937 CVE-2023-38712 affecting package libreswan for versions less than 4.7-6

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...