Vulnerability-Lookup

CVE-2021-29470 (GCVE-0-2021-29470)

Vulnerability from cvelistv5 – Published: 2021-04-23 00:00 – Updated: 2024-08-03 22:11

Title

Out-of-bounds read in Exiv2::Jp2Image::encodeJp2Header

Summary

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4.

Severity

4.7 (Medium)


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

CWE

CWE-125 - Out-of-bounds Read

Assigner

GitHub_M mitre root

References

7 references

URL	Tags
https://github.com/Exiv2/exiv2/security/advisorie…
https://github.com/Exiv2/exiv2/pull/1581
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.gentoo.org/glsa/202312-06	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Exiv2	exiv2	Affected: <= 0.27.3	guessed

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Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ/\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWZLDECIXXW3CCZ3RS4A3NG5X5VE4WZM/\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBKWLTXM7IKZ4PVGKLUQVAVFAYGGF7QR/\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN/\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://security.gentoo.org/glsa/202312-06\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/Exiv2/exiv2/pull/1581\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third 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Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWZLDECIXXW3CCZ3RS4A3NG5X5VE4WZM/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBKWLTXM7IKZ4PVGKLUQVAVFAYGGF7QR/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.gentoo.org/glsa/202312-06\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T15:57:09+00:00",
      "cve": "CVE-2021-29470",
      "id": "CVE-2021-29470",
      "initial_release_date": "2021-04-23T00:00:00+00:00",
      "product_status:fixed": "62",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "4",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "exiv2: Out-of-bounds read in Exiv2::Jp2Image::encodeJp2Header",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-29470.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-03T00:48:34Z",
      "cve": "CVE-2021-29470",
      "id": "CVE-2021-29470",
      "initial_release_date": "2023-02-15T03:43:32Z",
      "product_status:known_affected": "8",
      "product_status:known_not_affected": "31",
      "product_status:recommended": "182",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-29470",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-29470.json",
      "version": "21"
    }
  }
}

SUSE-SU-2022:3598-1

Vulnerability from csaf_suse - Published: 2022-10-17 11:19 - Updated: 2022-10-17 11:19

Summary

Security update for exiv2

Severity

Important

Scope

15 vulnerabilities in this advisory, including CVE-2021-29470.

CVE-2021-29470

4.7 (Medium)


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

Recommended: 134 products

Open the full advisory

SUSE-SU-2022:3889-1

Vulnerability from csaf_suse - Published: 2022-11-07 14:26 - Updated: 2022-11-07 14:26

Summary

Security update for exiv2

Severity

Important

Scope

15 vulnerabilities in this advisory, including CVE-2021-29470.

CVE-2021-29470

4.7 (Medium)


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

Recommended: 39 products

Open the full advisory

ubuntu-cve-2021-29470

Vulnerability from osv_ubuntu

Published

2021-04-23 19:15

Modified

2026-04-22 07:39

Summary

Details

Severity

6.5 (Medium)


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

4.7 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-29470	REPORT
	https://github.com/Exiv2/exiv2/security/advisorie…	REPORT
	https://github.com/Exiv2/exiv2/pull/1581	REPORT
	https://ubuntu.com/security/notices/USN-4941-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2021-29470	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "exiv2",
            "binary_version": "0.27.2-8ubuntu2.2"
          },
          {
            "binary_name": "libexiv2-27",
            "binary_version": "0.27.2-8ubuntu2.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "exiv2",
        "purl": "pkg:deb/ubuntu/exiv2@0.27.2-8ubuntu2.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.27.2-8ubuntu2.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.25-4ubuntu2",
        "0.25-4ubuntu3",
        "0.27.2-8ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4.",
  "id": "UBUNTU-CVE-2021-29470",
  "modified": "2026-04-22T07:39:59Z",
  "published": "2021-04-23T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-29470"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Exiv2/exiv2/security/advisories/GHSA-8949-hhfh-j7rj"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Exiv2/exiv2/pull/1581"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4941-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-29470"
    }
  ],
  "related": [
    "USN-4941-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-29470"
  ]
}

WID-SEC-W-2022-1968

Vulnerability from csaf_certbund - Published: 2021-11-09 23:00 - Updated: 2023-08-23 22:00

Summary

Red Hat Enterprise Linux (exiv2): Mehrere Schwachstellen

Severity

Hoch

Scope

12 vulnerabilities in this advisory, including CVE-2021-29470.

CVE-2021-29470

Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Die Fehler bestehen in den Komponenten exiv2 und compat-exiv2-026 aufgrund von mehreren Out-of-bounds-Reads, mehreren Heap-basierten Pufferüberläufen, mehreren Integer-Überläufen, einer Verwendung von nicht initialisiertem Speicher und einer quadratischen Komplexität. Ein Angreifer kann diese Schwachstellen ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen und die Integrität zu gefährden. Eine erfolgreiche Ausnutzung erfordert eine Benutzerinteraktion.

Known affected: 3 products

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-2021-29470 (GCVE-0-2021-29470)

SUSE-SU-2022:3598-1

SUSE-SU-2022:3889-1

ubuntu-cve-2021-29470

Vulnerability from osv_ubuntu

WID-SEC-W-2022-1968

Tags

Sightings

Nomenclature

Related by attack behaviour