Input validation error in libreswan (Red Hat package) - CVE-2023-2295

Vulnerability identifier: #VU76192

CSH Severity: Medium

CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-2295

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a missing patch for #VU75709 (CVE-2023-30570). A remote attacker can send a specially crafted IKEv1 Aggressive Mode packet to the daemon and crash it.

libreswan (Red Hat package)
libreswan
Red Hat OpenShift Container Platform
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Anolis OS

Install updates from vendor's website.

libreswan (Red Hat package) - addressed in versions 4.9-3.el8_8, 4.9-4.el9_2
Red Hat OpenShift Container Platform - update to 4.13.2
libreswan - update to 4.9-3

• https://bugzilla.redhat.com/show_bug.cgi?id=2189777

• Red Hat Enterprise Linux 8 update for libreswan
• Red Hat Enterprise Linux 9 update for libreswan
• Multiple vulnerabilities in Red Hat OpenShift Container Platform release 4.13
• Anolis OS update for libreswan