Vulnerability-Lookup

CVE-2023-2295 (GCVE-0-2023-2295)

Vulnerability from cvelistv5 – Published: 2023-05-17 00:00 – Updated: 2025-01-22 18:25

Summary

A vulnerability was found in the libreswan library. This security issue 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 CVE exists because of a CVE-2023-30570 security regression for libreswan package in Red Hat Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-22 18:25 UTC

CWE

CWE-400 - - Uncontrolled Resource Consumption

Assigner

redhat redhat root

References

4 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2189777
https://access.redhat.com/security/cve/CVE-2023-2295
https://access.redhat.com/errata/RHSA-2023:3107
https://access.redhat.com/errata/RHSA-2023:3148

Impacted products

1 product

Vendor	Product	Version	CPE status
n/a	libreswan	Affected: Affects libreswan v4.9-1.el8 and libreswan v4.9-1.el9, Fixed in libreswan v4.9-3.el8_8 and libreswan v4.9-4.el9_2

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To clipboard

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alsa-2023:3107

Vulnerability from osv_almalinux

Published

2023-05-16 00:00

Modified

2023-05-19 22:00

Summary

Important: libreswan security update

Details

Libreswan is an implementation of IPsec and 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 such as virtual private network (VPN).

Security Fix(es):

libreswan: Regression of CVE-2023-30570 fixes in the AlmaLinux (CVE-2023-2295)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2023:3107	ADVISORY
	https://access.redhat.com/security/cve/CVE-2023-2295	REPORT
	https://bugzilla.redhat.com/2189777	REPORT
	https://errata.almalinux.org/8/ALSA-2023-3107.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "libreswan"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.9-3.el8_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "Libreswan is an implementation of IPsec and 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 such as virtual private network (VPN).\n\nSecurity Fix(es):\n\n* libreswan: Regression of CVE-2023-30570 fixes in the AlmaLinux (CVE-2023-2295)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "id": "ALSA-2023:3107",
  "modified": "2023-05-19T22:00:12Z",
  "published": "2023-05-16T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2023:3107"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2023-2295"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2189777"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2023-3107.html"
    }
  ],
  "related": [
    "CVE-2023-30570",
    "CVE-2023-2295"
  ],
  "summary": "Important: libreswan security update"
}

alsa-2023:3148

Vulnerability from osv_almalinux

Published

2023-05-16 00:00

Modified

2023-05-19 22:00

Summary

Important: libreswan security update

Details

Security Fix(es):

libreswan: Regression of CVE-2023-30570 fixes in the AlmaLinux (CVE-2023-2295)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2023:3148	ADVISORY
	https://access.redhat.com/security/cve/CVE-2023-2295	REPORT
	https://bugzilla.redhat.com/2189777	REPORT
	https://errata.almalinux.org/9/ALSA-2023-3148.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "libreswan"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.9-4.el9_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "Libreswan is an implementation of IPsec and 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 such as virtual private network (VPN).\n\nSecurity Fix(es):\n\n* libreswan: Regression of CVE-2023-30570 fixes in the AlmaLinux (CVE-2023-2295)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "id": "ALSA-2023:3148",
  "modified": "2023-05-19T22:00:13Z",
  "published": "2023-05-16T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2023:3148"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2023-2295"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2189777"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/9/ALSA-2023-3148.html"
    }
  ],
  "related": [
    "CVE-2023-30570",
    "CVE-2023-2295"
  ],
  "summary": "Important: libreswan security update"
}

FKIE_CVE-2023-2295

Vulnerability from fkie_nvd - Published: 2023-05-17 23:15 - Updated: 2026-06-17 05:52

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2023:3107	Third Party Advisory
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2023:3148	Third Party Advisory
secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2023-2295	Third Party Advisory
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2189777	Issue Tracking
af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/errata/RHSA-2023:3107	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/errata/RHSA-2023:3148	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/security/cve/CVE-2023-2295	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.redhat.com/show_bug.cgi?id=2189777	Issue Tracking

Impacted products

Vendor	Product	Version
libreswan	libreswan	4.9-1.el8
libreswan	libreswan	4.9-1.el9
redhat	enterprise_linux	8.0
redhat	enterprise_linux	9.0
redhat	enterprise_linux_eus	8.8
redhat	enterprise_linux_eus	9.2
redhat	enterprise_linux_server_aus	8.8
redhat	enterprise_linux_server_aus	9.2
redhat	enterprise_linux_server_tus	8.8

JSON

To clipboard

{
  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
          "versions": [
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            }
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      ],
      "source": "secalert@redhat.com"
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  ],
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}

GHSA-GCRH-C42H-M2VW

Vulnerability from github – Published: 2023-05-18 00:30 – Updated: 2024-04-04 04:14

Details

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-2295"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-05-17T23:15:09Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability was found in the libreswan library. This security issue 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 CVE exists because of a CVE-2023-30570 security regression for libreswan package in Red Hat Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2.",
  "id": "GHSA-gcrh-c42h-m2vw",
  "modified": "2024-04-04T04:14:06Z",
  "published": "2023-05-18T00:30:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2295"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2023:3107"
    },
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    },
    {
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      "url": "https://access.redhat.com/security/cve/CVE-2023-2295"
    },
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    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2023-2295

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-2295

Aliases

CVE-2023-2295

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-2295",
    "id": "GSD-2023-2295"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
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        "CVE-2023-2295"
      ],
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      "id": "GSD-2023-2295",
      "modified": "2023-12-13T01:20:31.950461Z",
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    }
  },
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                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_eus:9.2:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2023-2295"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "A vulnerability was found in the libreswan library. This security issue 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 CVE exists because of a CVE-2023-30570 security regression for libreswan package in Red Hat Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-noinfo"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://access.redhat.com/security/cve/CVE-2023-2295",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2023-2295"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2189777",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2189777"
            },
            {
              "name": "https://access.redhat.com/errata/RHSA-2023:3148",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2023:3148"
            },
            {
              "name": "https://access.redhat.com/errata/RHSA-2023:3107",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2023:3107"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-05-25T17:35Z",
      "publishedDate": "2023-05-17T23:15Z"
    }
  }
}

RHBA-2024:11505

Vulnerability from csaf_redhat - Published: 2025-01-02 20:02 - Updated: 2026-01-28 19:37

Summary

Red Hat Bug Fix Advisory: OpenShift Container Platform 4.16.28 packages and security update

Severity

Important

Scope

8 vulnerabilities in this advisory, including CVE-2023-2295.

CVE-2023-2295

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 13 products

https://access.redhat.com/errata/RHBA-2024:11505

Open the full advisory

RHBA-2024:11525

Vulnerability from csaf_redhat - Published: 2025-01-02 21:44 - Updated: 2026-01-28 19:37

Summary

Red Hat Bug Fix Advisory: OpenShift Container Platform 4.17.10 packages and security update

Severity

Important

Scope

8 vulnerabilities in this advisory, including CVE-2023-2295.

CVE-2023-2295

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 13 products Known not affected: 42 products

https://access.redhat.com/errata/RHBA-2024:11525

Open the full advisory

RHBA-2024:11565

Vulnerability from csaf_redhat - Published: 2025-01-02 18:44 - Updated: 2026-01-28 19:37

Summary

Red Hat Bug Fix Advisory: OpenShift Container Platform 4.15.42 packages update

Severity

Important

Scope

8 vulnerabilities in this advisory, including CVE-2023-2295.

CVE-2023-2295

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 13 products

https://access.redhat.com/errata/RHBA-2024:11565

Open the full advisory

RHSA-2023:3107

Vulnerability from csaf_redhat - Published: 2023-05-16 10:52 - Updated: 2025-11-21 18:40

Summary

Red Hat Security Advisory: libreswan security update

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2023-2295.

CVE-2023-2295

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 13 products

https://access.redhat.com/errata/RHSA-2023:3107

Open the full advisory

RHSA-2023:3148

Vulnerability from csaf_redhat - Published: 2023-05-16 19:43 - Updated: 2025-11-21 18:40

Summary

Red Hat Security Advisory: libreswan security update

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2023-2295.

CVE-2023-2295

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 13 products

https://access.redhat.com/errata/RHSA-2023:3148

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2023-2295 (GCVE-0-2023-2295)

Vulnerability from osv_almalinux

Vulnerability from osv_almalinux

Tags

Sightings

Nomenclature

Related by attack behaviour