Unrated

DEBIAN-CVE-2026-16768

Type: advisorySource: OSV1 source record

A flaw was found in gdk-pixbuf. When parsing a specially crafted ICO file with pixel values that exceed the defined palette range, an out-of-bounds read can occur due to improper bounds checking against the actual palette size. This vulnerability causes heap bytes to be interpreted as valid palette indices and rendered as RGB pixel values in the output image, allowing an attacker to extract heap content via the generated output, such as a thumbnail.

Announced 23 Jul 2026Source revision 1

Original source ↗

DEBIAN-CVE-2026-16768

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-16768

gdk-pixbuf

Source reference: /affected/0/package/name

Affected versions: 2.42.10+dfsg-1
Source reference: /affected/0/versions
2.42.10+dfsg-1+deb12u1
Source reference: /affected/0/versions
2.42.10+dfsg-1+deb12u2
Source reference: /affected/0/versions
2.42.10+dfsg-1+deb12u3
Source reference: /affected/0/versions
2.42.10+dfsg-1+deb12u4
Source reference: /affected/0/versions
2.42.10+dfsg-2
Source reference: /affected/0/versions
2.42.10+dfsg-3
Source reference: /affected/0/versions
2.42.12+dfsg-1
Source reference: /affected/0/versions
2.42.12+dfsg-2
Source reference: /affected/0/versions
2.42.12+dfsg-3
Source reference: /affected/0/versions
2.42.12+dfsg-4
Source reference: /affected/0/versions
2.42.12+dfsg-5
Source reference: /affected/0/versions
2.44.3+dfsg-1
Source reference: /affected/0/versions
2.44.3+dfsg-2
Source reference: /affected/0/versions
2.44.3+dfsg-3
Source reference: /affected/0/versions
2.44.4+dfsg-1
Source reference: /affected/0/versions
2.44.4+dfsg-2
Source reference: /affected/0/versions
2.44.4+dfsg-3
Source reference: /affected/0/versions
2.44.5+dfsg-1
Source reference: /affected/0/versions
2.44.5+dfsg-2
Source reference: /affected/0/versions
2.44.5+dfsg-3
Source reference: /affected/0/versions
2.44.5+dfsg-4
Source reference: /affected/0/versions
2.44.6+dfsg-1
Source reference: /affected/0/versions
2.44.6+dfsg-2
Source reference: /affected/0/versions
2.44.7+dfsg-1
Source reference: /affected/0/versions
2.44.8+dfsg-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

gdk-pixbuf

Source reference: /affected/1/package/name

Affected versions: 2.42.12+dfsg-4
Source reference: /affected/1/versions
2.42.12+dfsg-4+deb13u1
Source reference: /affected/1/versions
2.42.12+dfsg-5
Source reference: /affected/1/versions
2.44.3+dfsg-1
Source reference: /affected/1/versions
2.44.3+dfsg-2
Source reference: /affected/1/versions
2.44.3+dfsg-3
Source reference: /affected/1/versions
2.44.4+dfsg-1
Source reference: /affected/1/versions
2.44.4+dfsg-2
Source reference: /affected/1/versions
2.44.4+dfsg-3
Source reference: /affected/1/versions
2.44.5+dfsg-1
Source reference: /affected/1/versions
2.44.5+dfsg-2
Source reference: /affected/1/versions
2.44.5+dfsg-3
Source reference: /affected/1/versions
2.44.5+dfsg-4
Source reference: /affected/1/versions
2.44.6+dfsg-1
Source reference: /affected/1/versions
2.44.6+dfsg-2
Source reference: /affected/1/versions
2.44.7+dfsg-1
Source reference: /affected/1/versions
2.44.8+dfsg-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

gdk-pixbuf

Source reference: /affected/2/package/name

Affected versions: 2.42.12+dfsg-4
Source reference: /affected/2/versions
2.42.12+dfsg-5
Source reference: /affected/2/versions
2.44.3+dfsg-1
Source reference: /affected/2/versions
2.44.3+dfsg-2
Source reference: /affected/2/versions
2.44.3+dfsg-3
Source reference: /affected/2/versions
2.44.4+dfsg-1
Source reference: /affected/2/versions
2.44.4+dfsg-2
Source reference: /affected/2/versions
2.44.4+dfsg-3
Source reference: /affected/2/versions
2.44.5+dfsg-1
Source reference: /affected/2/versions
2.44.5+dfsg-2
Source reference: /affected/2/versions
2.44.5+dfsg-3
Source reference: /affected/2/versions
2.44.5+dfsg-4
Source reference: /affected/2/versions
2.44.6+dfsg-1
Source reference: /affected/2/versions
2.44.6+dfsg-2
Source reference: /affected/2/versions
2.44.7+dfsg-1
Source reference: /affected/2/versions
2.44.8+dfsg-1
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "gdk-pixbuf",
      "purl": "pkg:deb/debian/gdk-pixbuf?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "2.42.10+dfsg-1",
      "2.42.10+dfsg-1+deb12u1",
      "2.42.10+dfsg-1+deb12u2",
      "2.42.10+dfsg-1+deb12u3",
      "2.42.10+dfsg-1+deb12u4",
      "2.42.10+dfsg-2",
      "2.42.10+dfsg-3",
      "2.42.12+dfsg-1",
      "2.42.12+dfsg-2",
      "2.42.12+dfsg-3",
      "2.42.12+dfsg-4",
      "2.42.12+dfsg-5",
      "2.44.3+dfsg-1",
      "2.44.3+dfsg-2",
      "2.44.3+dfsg-3",
      "2.44.4+dfsg-1",
      "2.44.4+dfsg-2",
      "2.44.4+dfsg-3",
      "2.44.5+dfsg-1",
      "2.44.5+dfsg-2",
      "2.44.5+dfsg-3",
      "2.44.5+dfsg-4",
      "2.44.6+dfsg-1",
      "2.44.6+dfsg-2",
      "2.44.7+dfsg-1",
      "2.44.8+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-16768.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "gdk-pixbuf",
      "purl": "pkg:deb/debian/gdk-pixbuf?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "2.42.12+dfsg-4",
      "2.42.12+dfsg-4+deb13u1",
      "2.42.12+dfsg-5",
      "2.44.3+dfsg-1",
      "2.44.3+dfsg-2",
      "2.44.3+dfsg-3",
      "2.44.4+dfsg-1",
      "2.44.4+dfsg-2",
      "2.44.4+dfsg-3",
      "2.44.5+dfsg-1",
      "2.44.5+dfsg-2",
      "2.44.5+dfsg-3",
      "2.44.5+dfsg-4",
      "2.44.6+dfsg-1",
      "2.44.6+dfsg-2",
      "2.44.7+dfsg-1",
      "2.44.8+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-16768.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "gdk-pixbuf",
      "purl": "pkg:deb/debian/gdk-pixbuf?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "2.42.12+dfsg-4",
      "2.42.12+dfsg-5",
      "2.44.3+dfsg-1",
      "2.44.3+dfsg-2",
      "2.44.3+dfsg-3",
      "2.44.4+dfsg-1",
      "2.44.4+dfsg-2",
      "2.44.4+dfsg-3",
      "2.44.5+dfsg-1",
      "2.44.5+dfsg-2",
      "2.44.5+dfsg-3",
      "2.44.5+dfsg-4",
      "2.44.6+dfsg-1",
      "2.44.6+dfsg-2",
      "2.44.7+dfsg-1",
      "2.44.8+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-16768.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #57391 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 17:13:50 GMT
Publisher date: Thu, 23 Jul 2026 17:16:28 GMT

Read the original announcement