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libimager-perl — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2026-13708

Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol. i_readjpeg_wiol walks the marker list libjpeg returns and, for each APP13 marker, allocates a new buffer with *iptc_itext = mymalloc(...) and overwrites the previous pointer without freeing it. Only the final payload is later turned into a Perl scalar and freed, so a JPEG with N such markers leaks the first N-1 payloads on every read. In a long-lived process, such as an upload or thumbnailing service, repeated reads accumulate these leaks and exhaust available memory, a denial of service. The same handler ships bundled in the Imager distribution, where versions before 1.032 are affected and the fix ships in 1.032.

Products
libimager-perl
Affected versions
1.019+dfsg-1, 1.019+dfsg-2, 1.020+dfsg-1, 1.022+dfsg-1, 1.023+dfsg-1, 1.024+dfsg-1, 1.024+dfsg-2, 1.025+dfsg-1, 1.027+dfsg-1, 1.028+dfsg-1, 1.029+dfsg-1, 1.030+dfsg-1, 1.031+dfsg-1, 1.032+dfsg-1, 1.033+dfsg-1, 1.034+dfsg-1, 1.034+dfsg-2, 1.035+dfsg-1, 1.036+dfsg-1, 1.037+dfsg-1, 1.037+dfsg-2, 1.040+dfsg-1
Fixed versions
1.032+dfsg-1
CVEs
CVE-2026-13708
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 13:56 UTC · Revision 2

Source evidence

DEBIAN-CVE-2026-13708

core-osv · Original source

Published 6 Jul 2026, 13:16 UTC

Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol. i_readjpeg_wiol walks the marker list libjpeg returns and, for each APP13 marker, allocates a new buffer with *iptc_itext = mymalloc(...) and overwrites the previous pointer without freeing it. Only the final payload is later turned into a Perl scalar and freed, so a JPEG with N such markers leaks the first N-1 payloads on every read. In a long-lived process, such as an upload or thumbnailing service, repeated reads accumulate these leaks and exhaust available memory, a denial of service. The same handler ships bundled in the Imager distribution, where versions before 1.032 are affected and the fix ships in 1.032.

osv:DEBIAN-CVE-2026-13708

libimager-perl

Fixed versions: Not specified

libimager-perl

Fixed versions: Not specified

libimager-perl

Fixed versions: 1.032+dfsg-1

Complete source record
{
  "id": "f4250e69abd4a3be42dfd38ba7e3bee0a3d251044e40e8ce025e04b735cd29de",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-13708",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-13708",
    "summary": "Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol. i_readjpeg_wiol walks the marker list libjpeg returns and, for each APP13 marker, allocates a new buffer with *iptc_itext = mymalloc(...) and overwrites the previous pointer without freeing it. Only the final payload is later turned into a Perl scalar and freed, so a JPEG with N such markers leaks the first N-1 payloads on every read. In a long-lived process, such as an upload or thumbnailing service, repeated reads accumulate these leaks and exhaust available memory, a denial of service. The same handler ships bundled in the Imager distribution, where versions before 1.032 are affected and the fix ships in 1.032.",
    "evidence": "osv:DEBIAN-CVE-2026-13708",
    "products": [
      {
        "name": {
          "value": "libimager-perl",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.019+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.019+dfsg-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.020+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.022+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.023+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.024+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.024+dfsg-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.025+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.027+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.028+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.029+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.030+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.031+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.032+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.033+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.034+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.034+dfsg-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.035+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.036+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.037+dfsg-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.037+dfsg-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.040+dfsg-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libimager-perl",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.027+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.028+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.029+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.030+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.031+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.032+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.033+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.034+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.034+dfsg-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.035+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.036+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.037+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.037+dfsg-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.040+dfsg-1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libimager-perl",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.032+dfsg-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1.027+dfsg-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.028+dfsg-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.029+dfsg-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.030+dfsg-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.031+dfsg-1",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2026-13708",
      "aliases": [
        "DEBIAN-CVE-2026-13708"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libimager-perl",
            "purl": "pkg:deb/debian/libimager-perl?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "1.019+dfsg-1",
            "1.019+dfsg-2",
            "1.020+dfsg-1",
            "1.022+dfsg-1",
            "1.023+dfsg-1",
            "1.024+dfsg-1",
            "1.024+dfsg-2",
            "1.025+dfsg-1",
            "1.027+dfsg-1",
            "1.028+dfsg-1",
            "1.029+dfsg-1",
            "1.030+dfsg-1",
            "1.031+dfsg-1",
            "1.032+dfsg-1",
            "1.033+dfsg-1",
            "1.034+dfsg-1",
            "1.034+dfsg-2",
            "1.035+dfsg-1",
            "1.036+dfsg-1",
            "1.037+dfsg-1",
            "1.037+dfsg-2",
            "1.040+dfsg-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13708.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libimager-perl",
            "purl": "pkg:deb/debian/libimager-perl?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "1.027+dfsg-1",
            "1.028+dfsg-1",
            "1.029+dfsg-1",
            "1.030+dfsg-1",
            "1.031+dfsg-1",
            "1.032+dfsg-1",
            "1.033+dfsg-1",
            "1.034+dfsg-1",
            "1.034+dfsg-2",
            "1.035+dfsg-1",
            "1.036+dfsg-1",
            "1.037+dfsg-1",
            "1.037+dfsg-2",
            "1.040+dfsg-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13708.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.032+dfsg-1"
                }
              ]
            }
          ],
          "package": {
            "name": "libimager-perl",
            "purl": "pkg:deb/debian/libimager-perl?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "1.027+dfsg-1",
            "1.028+dfsg-1",
            "1.029+dfsg-1",
            "1.030+dfsg-1",
            "1.031+dfsg-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13708.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T12:02:56.188772750Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-13708"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-13708"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-13708",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 453006,
  "published_at": "2026-07-06T13:16:32.567+00:00"
}