{
    "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"
    }
}