{ "document": { "aggregate_severity": { "text": "high" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "description", "text": "Imager versions from 0.45_02 before 1.034 for Perl may expose adjacent heap bytes via strlen() over-read from zero-count ASCII EXIF entries in copy_string_tags.\n\ncopy_string_tags() computes an ASCII EXIF tag's length as `entry->size - 1` to strip the trailing NUL. A zero-count ASCII entry sets `entry->size` to 0, and the derived length reaches i_tags_add() as -1, which is interpreted as a request to call strlen(), scanning past the entry to the next NUL and copying those bytes into the tag. JPEG reaches this path via im_decode_exif(), as does the separate Imager::File::WEBP distribution, which is fixed by upgrading Imager.\n\nAny caller of Imager->read() on an attacker-supplied image with such an entry may receive an exif_* tag holding adjacent heap bytes instead of an empty string.", "title": "Vulnerability Description" } ], "publisher": { "category": "other", "contact_details": "gdt@cpan.org", "name": "giterlizzi", "namespace": "https://github.com/giterlizzi/" }, "references": [ { "category": "self", "summary": "CPANSA-Imager-2026-19082 JSON", "url": "https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-imager-2026-19082.json" }, { "category": "external", "summary": "https://github.com/tonycoz/imager/commit/24bde0427a113264d53f45a9c29ae756d84c82fe.patch", "url": "https://github.com/tonycoz/imager/commit/24bde0427a113264d53f45a9c29ae756d84c82fe.patch" }, { "category": "external", "summary": "https://github.com/tonycoz/imager/security/advisories/GHSA-hx46-55wp-hv6m", "url": "https://github.com/tonycoz/imager/security/advisories/GHSA-hx46-55wp-hv6m" }, { "category": "external", "summary": "https://metacpan.org/release/TONYC/Imager-1.034/changes", "url": "https://metacpan.org/release/TONYC/Imager-1.034/changes" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2026/08/07/6", "url": "http://www.openwall.com/lists/oss-security/2026/08/07/6" }, { "category": "external", "summary": "https://github.com/tonycoz/imager/security/advisories/GHSA-hx46-55wp-hv6m", "url": "https://github.com/tonycoz/imager/security/advisories/GHSA-hx46-55wp-hv6m" }, { "category": "external", "summary": "CVE-2026-19082 (NVD)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19082" } ], "title": "Imager vulnerability", "tracking": { "current_release_date": "2026-08-07T00:00:00", "generator": { "engine": { "name": "CSAF Perl Toolkit", "version": "0.26" } }, "id": "CPANSA-Imager-2026-19082", "initial_release_date": "2026-08-07T00:00:00", "revision_history": [ { "date": "2026-08-07T00:00:00", "number": "1", "summary": "First release" } ], "status": "final", "version": "1" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:cpan/>0.45_02", "product": { "name": "Imager greater than 0.45_02", "product_id": "CSAFPID-0001", "product_identification_helper": { "purl": "pkg:cpan/Imager" } } }, { "category": "product_version_range", "name": "vers:cpan/<1.034", "product": { "name": "Imager less than 1.034", "product_id": "CSAFPID-0002", "product_identification_helper": { "purl": "pkg:cpan/Imager" } } } ], "category": "product_name", "name": "Imager" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-19082", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "Imager versions from 0.45_02 before 1.034 for Perl may expose adjacent heap bytes via strlen() over-read from zero-count ASCII EXIF entries in copy_string_tags.\n\ncopy_string_tags() computes an ASCII EXIF tag's length as `entry->size - 1` to strip the trailing NUL. A zero-count ASCII entry sets `entry->size` to 0, and the derived length reaches i_tags_add() as -1, which is interpreted as a request to call strlen(), scanning past the entry to the next NUL and copying those bytes into the tag. JPEG reaches this path via im_decode_exif(), as does the separate Imager::File::WEBP distribution, which is fixed by upgrading Imager.\n\nAny caller of Imager->read() on an attacker-supplied image with such an entry may receive an exif_* tag holding adjacent heap bytes instead of an empty string.", "title": "Vulnerability Description" } ], "product_status": { "fixed": [ "CSAFPID-0002" ], "known_affected": [ "CSAFPID-0001" ] }, "scores": [ { "cvss_v3": { "baseScore": 7.5, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ] } ] }