vulnerability

Oracle Linux: CVE-2023-38711: ELSA-2023-6549: libreswan security update (MODERATE) (Multiple Advisories)

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
Aug 8, 2023
Added
Nov 22, 2023
Modified
Jan 7, 2025

Description

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.
A NULL pointer dereference flaw was found in Libreswan when processing IKEv1 Quick Mode requests. When an IKEv1 Quick Mode connection configured with ID_IPV4_ADDR or ID_IPV6_ADDR receives an IDcr payload with ID_FQDN, it triggers a NULL pointer dereference error. This flaw allows a malicious client or attacker to send a malformed IKEv1 Quick Mode packet, causing a crash and restart of the libreswan pluto daemon. When sent continuously, this issue leads to a denial of service attack.

Solution

oracle-linux-upgrade-libreswan
Title
NEW

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