{"api_version":"1","generated_at":"2026-05-13T17:10:41+00:00","cve":"CVE-2021-29463","urls":{"html":"https://cve.report/CVE-2021-29463","api":"https://cve.report/api/cve/CVE-2021-29463.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-29463","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-29463"},"summary":{"title":"CVE-2021-29463","description":"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.","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-125"],"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://github.com/Exiv2/exiv2/commit/783b3a6ff15ed6f82a8f8e6c8a6f3b84a9b04d4b","name":"https://github.com/Exiv2/exiv2/commit/783b3a6ff15ed6f82a8f8e6c8a6f3b84a9b04d4b","refsource":"MISC","tags":[],"title":"Improve bound checking in WebPImage::doWriteMetadata() · Exiv2/exiv2@783b3a6 · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/Exiv2/exiv2/security/advisories/GHSA-5p8g-9xf3-gfrr","name":"https://github.com/Exiv2/exiv2/security/advisories/GHSA-5p8g-9xf3-gfrr","refsource":"CONFIRM","tags":[],"title":"Out-of-bounds read in Exiv2::WebPImage::doWriteMetadata · Advisory · Exiv2/exiv2 · GitHub","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://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 - 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