PT-2023-18792 · Libreswan+4 · Libreswan+4

Tej Rathi · Published 2023-05-09 · Updated 2025-01-22 · CVE-2023-2295

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions libreswan (affected versions not specified)

Description A security issue was found in the libreswan library. This 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 issue exists due to a security regression in the libreswan package.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

ALSA-2023:3107

ALSA-2023:3148

CESA-2023_3107

CVE-2023-2295

RHSA-2023:3107

RHSA-2023:3148

RHSA-2023_3107

RHSA-2023_3148

RHSA-2024:10594

RLSA-2023:3107

Affected Products

Almalinux

Centos

Red Hat

Rocky Linux

Libreswan

References · 20

• https://linux.oracle.com/errata/ELSA-2023-3148.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-2295 · Security Note
• https://errata.rockylinux.org/RLSA-2023:3107 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2023:3148 · Vendor Advisory
• https://errata.almalinux.org/8/ALSA-2023-3107.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-2295 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2023-3107.html · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2023:3107 · Vendor Advisory
• https://osv.dev/vulnerability/RLSA-2023:3107 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-2295 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-2295 · Security Note
• https://errata.almalinux.org/9/ALSA-2023-3148.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-2295 · Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2023-2295 · Note
• https://rhn.redhat.com/errata/RHSA-2023-3107.html · Note