ubuntu-cve-2026-8669
Vulnerability from osv_ubuntu
Published
2026-05-15 15:16
Modified
2026-05-15 15:16
Summary
Details

Imager versions through 1.030 for Perl allow a heap out of bounds (OOB) write on crafted multi-frame GIF files. Imager::File::GIF's i_readgif_multi_low allocates a single per-row buffer GifRow sized for the GIF's global screen width 'SWidth' and reuses it across every image in the file. The page-match branch validates Image.Width + Image.Left > SWidth before each DGifGetLine write, but the parallel skip-image branch at imgif.c:790-805 calls DGifGetLine(GifFile, GifRow, Width) with no such check.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.004+dfsg-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.004+dfsg-1build1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.003+dfsg-1",
        "1.004+dfsg-1",
        "1.004+dfsg-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.006+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.006+dfsg-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.005+dfsg-2build1",
        "1.006+dfsg-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.011+dfsg-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.011+dfsg-1build1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.011+dfsg-1",
        "1.011+dfsg-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.012+dfsg-2build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.012+dfsg-2build1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.012+dfsg-1build1",
        "1.012+dfsg-2",
        "1.012+dfsg-2build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.023+dfsg-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.023+dfsg-1build2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.019+dfsg-2",
        "1.020+dfsg-1",
        "1.022+dfsg-1",
        "1.023+dfsg-1",
        "1.023+dfsg-1build1",
        "1.023+dfsg-1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.027+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.027+dfsg-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.027+dfsg-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libimager-perl",
            "binary_version": "1.029+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libimager-perl",
        "purl": "pkg:deb/ubuntu/libimager-perl@1.029+dfsg-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.027+dfsg-1",
        "1.029+dfsg-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Imager versions through 1.030 for Perl allow a heap out of bounds (OOB) write on crafted multi-frame GIF files. Imager::File::GIF\u0027s i_readgif_multi_low allocates a single per-row buffer GifRow sized for the GIF\u0027s global screen width \u0027SWidth\u0027 and reuses it across every image in the file. The page-match branch validates Image.Width + Image.Left \u003e SWidth before each DGifGetLine write, but the parallel skip-image branch at imgif.c:790-805 calls DGifGetLine(GifFile, GifRow, Width) with no such check.",
  "id": "UBUNTU-CVE-2026-8669",
  "modified": "2026-05-15T15:16:00Z",
  "published": "2026-05-15T15:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-8669"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-8669"
    },
    {
      "type": "REPORT",
      "url": "https://lists.security.metacpan.org/cve-announce/msg/40083214/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/tonycoz/imager/commit/782e9c06cc75a0f7eed383f39522f51f44598b04.patch"
    },
    {
      "type": "REPORT",
      "url": "https://metacpan.org/release/TONYC/Imager-1.031/source/Changes"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/15/17"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-8669"
  ]
}



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