{
   "document": {
      "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 before 1.036 for Perl disclose uninitialised heap memory reading a paletted image with pixel indexes past its colour map in i_gpix_p and i_glin_p.\n\nThe palette is allocated uninitialised, and only the entries a reader adds count as populated. The TGA reader stores pixel indexes without checking them against the colour map. i_gpix_p() rejects only an index greater than the count, so an index equal to it reads the first unpopulated entry, and getpixel() returns it.\n\ni_glin_p() skips any index at or beyond the count without writing that pixel to the caller's buffer. The palette-to-RGB conversion reads each row through an uninitialised buffer, so those pixels of the converted image hold prior heap contents.\n\nReading an attacker-supplied image through Imager->read() and then fetching its pixels or converting it to RGB discloses process heap memory.",
            "title": "Vulnerability Description"
         }
      ],
      "publisher": {
         "category": "other",
         "contact_details": "gdt@cpan.org",
         "name": "giterlizzi",
         "namespace": "https://github.com/giterlizzi/"
      },
      "references": [
         {
            "category": "self",
            "summary": "CPANSA-Imager-2026-93018 JSON",
            "url": "https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-imager-2026-93018.json"
         },
         {
            "category": "external",
            "summary": "https://github.com/tonycoz/imager/commit/dcf0a52e2732399d42ab44d98af6934658d068ee.patch",
            "url": "https://github.com/tonycoz/imager/commit/dcf0a52e2732399d42ab44d98af6934658d068ee.patch"
         },
         {
            "category": "external",
            "summary": "https://github.com/tonycoz/imager/security/advisories/GHSA-j7v7-cm4g-vrgf",
            "url": "https://github.com/tonycoz/imager/security/advisories/GHSA-j7v7-cm4g-vrgf"
         },
         {
            "category": "external",
            "summary": "https://metacpan.org/release/TONYC/Imager-1.036/changes",
            "url": "https://metacpan.org/release/TONYC/Imager-1.036/changes"
         },
         {
            "category": "external",
            "summary": "http://www.openwall.com/lists/oss-security/2026/09/18/8",
            "url": "http://www.openwall.com/lists/oss-security/2026/09/18/8"
         },
         {
            "category": "external",
            "summary": "CVE-2026-93018 (NVD)",
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93018"
         }
      ],
      "title": "Imager vulnerability",
      "tracking": {
         "current_release_date": "2026-09-18T00:00:00",
         "generator": {
            "engine": {
               "name": "CSAF Perl Toolkit",
               "version": "0.26"
            }
         },
         "id": "CPANSA-Imager-2026-93018",
         "initial_release_date": "2026-09-18T00:00:00",
         "revision_history": [
            {
               "date": "2026-09-18T00:00:00",
               "number": "1",
               "summary": "First release"
            }
         ],
         "status": "final",
         "version": "1"
      }
   },
   "product_tree": {
      "branches": [
         {
            "branches": [
               {
                  "category": "product_version_range",
                  "name": "vers:cpan/<1.036",
                  "product": {
                     "name": "Imager less than 1.036",
                     "product_id": "CSAFPID-0001",
                     "product_identification_helper": {
                        "purl": "pkg:cpan/Imager"
                     }
                  }
               },
               {
                  "category": "product_version_range",
                  "name": "vers:cpan/>=1.036",
                  "product": {
                     "name": "Imager greater than or equal 1.036",
                     "product_id": "CSAFPID-0002",
                     "product_identification_helper": {
                        "purl": "pkg:cpan/Imager"
                     }
                  }
               }
            ],
            "category": "product_name",
            "name": "Imager"
         }
      ]
   },
   "vulnerabilities": [
      {
         "cve": "CVE-2026-93018",
         "cwe": {
            "id": "CWE-193",
            "name": "Off-by-one Error"
         },
         "notes": [
            {
               "category": "description",
               "text": "Imager versions before 1.036 for Perl disclose uninitialised heap memory reading a paletted image with pixel indexes past its colour map in i_gpix_p and i_glin_p.\n\nThe palette is allocated uninitialised, and only the entries a reader adds count as populated. The TGA reader stores pixel indexes without checking them against the colour map. i_gpix_p() rejects only an index greater than the count, so an index equal to it reads the first unpopulated entry, and getpixel() returns it.\n\ni_glin_p() skips any index at or beyond the count without writing that pixel to the caller's buffer. The palette-to-RGB conversion reads each row through an uninitialised buffer, so those pixels of the converted image hold prior heap contents.\n\nReading an attacker-supplied image through Imager->read() and then fetching its pixels or converting it to RGB discloses process heap memory.",
               "title": "Vulnerability Description"
            }
         ],
         "product_status": {
            "fixed": [
               "CSAFPID-0002"
            ],
            "known_affected": [
               "CSAFPID-0001"
            ]
         },
         "scores": [
            {
               "cvss_v3": {
                  "baseScore": 5.5,
                  "baseSeverity": "MEDIUM",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                  "version": "3.1"
               },
               "products": [
                  "CSAFPID-0001"
               ]
            }
         ]
      }
   ]
}