Vulnerability-Lookup

CVE-2023-23456 (GCVE-0-2023-23456)

Vulnerability from cvelistv5 – Published: 2023-01-12 00:00 – Updated: 2024-12-11 19:02

Title

Upx: heap-buffer-overflow in packtmt::pack()

Summary

A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.

Severity

5.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-07 16:19 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

fedora CNA under the redhat root

CNA scorecard C 69/100 over 34 records in the last 180 days details

References

6 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2160381
https://github.com/upx/upx/commit/510505a85cbe45e…
https://github.com/upx/upx/issues/632
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

1 product

Vendor	Product	Version	CPE status
		Unaffected: 4.0.2 , < * (semver)

Date Public

2022-11-24 00:00

Credits

Red Hat would like to thank Chenweijia for reporting this issue.

Show details on NVD website

JSON

To clipboard

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      "cveMetadata": {
        "assignerOrgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
        "assignerShortName": "fedora",
        "cveId": "CVE-2023-23456",
        "datePublished": "2023-01-12T00:00:00.000Z",
        "dateReserved": "2023-01-12T00:00:00.000Z",
        "dateUpdated": "2024-12-11T19:02:29.592Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

FKIE_CVE-2023-23456

Vulnerability from fkie_nvd - Published: 2023-01-12 19:15 - Updated: 2026-06-17 05:37

Severity

5.3 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Summary

A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.

References

URL	Tags
patrick@puiterwijk.org	https://bugzilla.redhat.com/show_bug.cgi?id=2160381	Issue Tracking, Third Party Advisory
patrick@puiterwijk.org	https://github.com/upx/upx/commit/510505a85cbe45e51fbd470f1aa8b02157c429d4	Patch, Third Party Advisory
patrick@puiterwijk.org	https://github.com/upx/upx/issues/632	Exploit, Third Party Advisory
patrick@puiterwijk.org	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EL3BVKIGG3SH6I3KPOYQAWCBD4UMPOPI/
patrick@puiterwijk.org	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ/
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.redhat.com/show_bug.cgi?id=2160381	Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/upx/upx/commit/510505a85cbe45e51fbd470f1aa8b02157c429d4	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/upx/upx/issues/632	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2024/12/msg00013.html
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EL3BVKIGG3SH6I3KPOYQAWCBD4UMPOPI/
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ/

Impacted products

Vendor	Product	Version
upx	upx	*
fedoraproject	fedora	36
fedoraproject	fedora	37

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://github.com/upx/upx",
          "packageName": "upx",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "4.0.2",
              "versionType": "semver"
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      "source": "patrick@puiterwijk.org"
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      "lang": "en",
      "value": "A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema de desbordamiento de b\u00fafer de almacenamiento din\u00e1mico en UPX en PackTmt::pack() en el archivo p_tmt.cpp. El flujo permite a un atacante provocar una denegaci\u00f3n de servicio (aborto) a trav\u00e9s de un archivo manipulado."
    }
  ],
  "id": "CVE-2023-23456",
  "lastModified": "2026-06-17T05:37:11.033",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
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}

GHSA-3J7G-922G-J6R3

Vulnerability from github – Published: 2023-01-12 21:30 – Updated: 2024-12-12 03:32

Details

A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.

Severity

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

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  "affected": [],
  "aliases": [
    "CVE-2023-23456"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-01-12T19:15:00Z",
    "severity": "MODERATE"
  },
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  "id": "GHSA-3j7g-922g-j6r3",
  "modified": "2024-12-12T03:32:57Z",
  "published": "2023-01-12T21:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-23456"
    },
    {
      "type": "WEB",
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    },
    {
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}

GSD-2023-23456

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

Details

A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.

Aliases

CVE-2023-23456

Aliases

CVE-2023-23456

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-23456",
    "id": "GSD-2023-23456",
    "references": [
      "https://www.suse.com/security/cve/CVE-2023-23456.html",
      "https://advisories.mageia.org/CVE-2023-23456.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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            ],
            "url": "https://github.com/upx/upx/issues/632"
          },
          {
            "source": "patrick@puiterwijk.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EL3BVKIGG3SH6I3KPOYQAWCBD4UMPOPI/"
          },
          {
            "source": "patrick@puiterwijk.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ/"
          }
        ],
        "sourceIdentifier": "patrick@puiterwijk.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "patrick@puiterwijk.org",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}

OPENSUSE-SU-2023:0088-1

Vulnerability from csaf_opensuse - Published: 2023-04-11 07:07 - Updated: 2026-09-20 19:45

Summary

Security update for upx

Severity

Important

Scope

12 vulnerabilities in this advisory, including CVE-2023-23456.

CVE-2023-23456

5.5 (Medium)


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

Recommended: 8 products

Open the full advisory

UBUNTU-CVE-2023-23456 (CVE-2023-23456)

Vulnerability from osv_ubuntu – Published: 2023-01-12 19:15 – Updated: 2026-10-17 09:17 – Source website

Details

A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.

Severity

5.3 (Medium)


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

5.5 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2023-23456	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2160381	REPORT
	https://github.com/upx/upx/commit/510505a85cbe45e…	REPORT
	https://github.com/upx/upx/issues/632	REPORT
	https://www.cve.org/CVERecord?id=CVE-2023-23456	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "upx-ucl",
            "binary_version": "4.2.2-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "upx-ucl",
        "purl": "pkg:deb/ubuntu/upx-ucl@4.2.2-3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.96-3",
        "4.2.2-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "upx-ucl",
            "binary_version": "4.2.4-1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "upx-ucl",
        "purl": "pkg:deb/ubuntu/upx-ucl@4.2.4-1.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.2.4-1",
        "4.2.4-1.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "upx-ucl",
            "binary_version": "4.2.4-1.1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "upx-ucl",
        "purl": "pkg:deb/ubuntu/upx-ucl@4.2.4-1.1build1?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.2.4-1.1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "upx-ucl",
            "binary_version": "4.2.4-1.1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "upx-ucl",
        "purl": "pkg:deb/ubuntu/upx-ucl@4.2.4-1.1build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.2.4-1.1",
        "4.2.4-1.1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.",
  "id": "UBUNTU-CVE-2023-23456",
  "modified": "2026-10-17T09:17:50Z",
  "published": "2023-01-12T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-23456"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2160381"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/upx/upx/commit/510505a85cbe45e51fbd470f1aa8b02157c429d4"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/upx/upx/issues/632"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-23456"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-23456"
  ]
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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-2023-23456 (GCVE-0-2023-23456)

FKIE_CVE-2023-23456

GHSA-3J7G-922G-J6R3

GSD-2023-23456

OPENSUSE-SU-2023:0088-1

UBUNTU-CVE-2023-23456 (CVE-2023-23456)

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Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour