{"api_version":"1","generated_at":"2026-05-13T17:20:13+00:00","cve":"CVE-2021-29464","urls":{"html":"https://cve.report/CVE-2021-29464","api":"https://cve.report/api/cve/CVE-2021-29464.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-29464","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-29464"},"summary":{"title":"CVE-2021-29464","description":"Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, 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.","state":"PUBLIC","assigner":"security-advisories@github.com","published_at":"2021-04-30 19:15:00","updated_at":"2023-12-22 10:15:00"},"problem_types":["CWE-787"],"metrics":[],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3HKXR6JOVKMBE4HY4FDXNVZGNCQG6T3/","name":"FEDORA-2021-dde4d7d47e","refsource":"","tags":[],"title":"[SECURITY] Fedora 33 Update: mingw-exiv2-0.27.4-2.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDMZTVQAZSMLPTDVDYLBHAAF7I5QXVYQ/","name":"FEDORA-2021-0b27f220bd","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 34 Update: mingw-exiv2-0.27.4-2.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://security.gentoo.org/glsa/202312-06","name":"GLSA-202312-06","refsource":"","tags":[],"title":"Exiv2: Multiple Vulnerabilities (GLSA 202312-06) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p","name":"https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p","refsource":"CONFIRM","tags":[],"title":"Heap buffer overflow in Exiv2::Jp2Image::encodeJp2Header · Advisory · Exiv2/exiv2 · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NDMZTVQAZSMLPTDVDYLBHAAF7I5QXVYQ/","name":"FEDORA-2021-0b27f220bd","refsource":"","tags":[],"title":"[SECURITY] Fedora 34 Update: mingw-exiv2-0.27.4-2.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54","name":"https://github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54","refsource":"MISC","tags":[],"title":"Better bounds checking in Jp2Image::encodeJp2Header() · Exiv2/exiv2@f930883 · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3HKXR6JOVKMBE4HY4FDXNVZGNCQG6T3/","name":"FEDORA-2021-dde4d7d47e","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 33 Update: mingw-exiv2-0.27.4-2.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-29464","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29464","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"29464","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"exiv2","cpe5":"exiv2","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"29464","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"33","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"29464","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"34","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-29464","qid":"183625","title":"Debian Security Update for exiv2 (CVE-2021-29464)"},{"cve":"CVE-2021-29464","qid":"198383","title":"Ubuntu Security Notification for Exiv2 vulnerabilities (USN-4964-1)"},{"cve":"CVE-2021-29464","qid":"239787","title":"Red Hat Update for exiv2 security (RHSA-2021:4173)"},{"cve":"CVE-2021-29464","qid":"281761","title":"Fedora Security Update for mingw (FEDORA-2021-0b27f220bd)"},{"cve":"CVE-2021-29464","qid":"281762","title":"Fedora Security Update for mingw (FEDORA-2021-dde4d7d47e)"},{"cve":"CVE-2021-29464","qid":"355846","title":"Amazon Linux Security Advisory for exiv2 : ALAS2-2023-2215"},{"cve":"CVE-2021-29464","qid":"501841","title":"Alpine Linux Security Update for exiv2"},{"cve":"CVE-2021-29464","qid":"504731","title":"Alpine Linux Security Update for exiv2"},{"cve":"CVE-2021-29464","qid":"670535","title":"EulerOS Security Update for exiv2 (EulerOS-SA-2021-2293)"},{"cve":"CVE-2021-29464","qid":"670569","title":"EulerOS Security Update for exiv2 (EulerOS-SA-2021-2327)"},{"cve":"CVE-2021-29464","qid":"690094","title":"Free Berkeley Software Distribution (FreeBSD) Security Update for exiv2 (d49f86ab-d9c7-11eb-a200-00155d01f201)"},{"cve":"CVE-2021-29464","qid":"710810","title":"Gentoo Linux Exiv2 Multiple Vulnerabilities (GLSA 202312-06)"},{"cve":"CVE-2021-29464","qid":"901790","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for exiv2 (7209)"},{"cve":"CVE-2021-29464","qid":"902316","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for exiv2 (7209-1)"},{"cve":"CVE-2021-29464","qid":"940296","title":"AlmaLinux Security Update for exiv2 (ALSA-2021:4173)"},{"cve":"CVE-2021-29464","qid":"960736","title":"Rocky Linux Security Update for exiv2 (RLSA-2021:4173)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2021-29464","STATE":"PUBLIC","TITLE":"Heap buffer overflow in Exiv2::Jp2Image::encodeJp2Header"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"exiv2","version":{"version_data":[{"version_value":"< 0.27.4"}]}}]},"vendor_name":"Exiv2"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, 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."}]},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":3.3,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-122 Heap-based Buffer Overflow"}]}]},"references":{"reference_data":[{"name":"https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p","refsource":"CONFIRM","url":"https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p"},{"name":"https://github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54","refsource":"MISC","url":"https://github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54"},{"refsource":"FEDORA","name":"FEDORA-2021-0b27f220bd","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDMZTVQAZSMLPTDVDYLBHAAF7I5QXVYQ/"},{"refsource":"FEDORA","name":"FEDORA-2021-dde4d7d47e","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3HKXR6JOVKMBE4HY4FDXNVZGNCQG6T3/"}]},"source":{"advisory":"GHSA-jgm9-5fw5-pw9p","discovery":"UNKNOWN"}},"nvd":{"publishedDate":"2021-04-30 19:15:00","lastModifiedDate":"2023-12-22 10:15:00","problem_types":["CWE-787"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":6.8},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:exiv2:exiv2:*:*:*:*:*:*:*:*","versionEndExcluding":"0.27.4","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"29464","Ordinal":"204668","Title":"CVE-2021-29464","CVE":"CVE-2021-29464","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"29464","Ordinal":"1","NoteData":"Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, 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.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"29464","Ordinal":"2","NoteData":"2021-04-30","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"29464","Ordinal":"3","NoteData":"2021-08-01","Type":"Other","Title":"Modified"}]}}}