{"id":"UBUNTU-CVE-2026-16768","details":"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.","modified":"2026-07-29T10:18:11.721235417Z","published":"2026-07-23T17:16:00Z","upstream":["CVE-2026-16768"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-16768"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-16768"}],"affected":[{"package":{"name":"gdk-pixbuf","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/gdk-pixbuf?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.32.1-1","2.32.2-1","2.32.2-1ubuntu1","2.32.2-1ubuntu1.2","2.32.2-1ubuntu1.3","2.32.2-1ubuntu1.4","2.32.2-1ubuntu1.5","2.32.2-1ubuntu1.6","2.32.2-1ubuntu1.6+esm1","2.32.2-1ubuntu1.6+esm2","2.32.2-1ubuntu1.6+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"gir1.2-gdkpixbuf-2.0","binary_version":"2.32.2-1ubuntu1.6+esm3"},{"binary_name":"libgdk-pixbuf2.0-0","binary_version":"2.32.2-1ubuntu1.6+esm3"},{"binary_version":"2.32.2-1ubuntu1.6+esm3","binary_name":"libgdk-pixbuf2.0-common"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16768.json"}},{"package":{"name":"gdk-pixbuf","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/gdk-pixbuf?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.36.11-1","2.36.11-1ubuntu0.1","2.36.11-2","2.36.11-2ubuntu0.1~esm1","2.36.11-2ubuntu0.1~esm2","2.36.11-2ubuntu0.1~esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"gir1.2-gdkpixbuf-2.0","binary_version":"2.36.11-2ubuntu0.1~esm3"},{"binary_version":"2.36.11-2ubuntu0.1~esm3","binary_name":"libgdk-pixbuf2.0-0"},{"binary_name":"libgdk-pixbuf2.0-bin","binary_version":"2.36.11-2ubuntu0.1~esm3"},{"binary_name":"libgdk-pixbuf2.0-common","binary_version":"2.36.11-2ubuntu0.1~esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16768.json"}},{"package":{"name":"gdk-pixbuf","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/gdk-pixbuf?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.40.0+dfsg-1build1","2.40.0+dfsg-1ubuntu1","2.40.0+dfsg-2","2.40.0+dfsg-3","2.40.0+dfsg-3ubuntu0.1","2.40.0+dfsg-3ubuntu0.2","2.40.0+dfsg-3ubuntu0.3","2.40.0+dfsg-3ubuntu0.4","2.40.0+dfsg-3ubuntu0.5","2.40.0+dfsg-3ubuntu0.5+esm1","2.40.0+dfsg-3ubuntu0.5+esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"2.40.0+dfsg-3ubuntu0.5+esm3","binary_name":"gir1.2-gdkpixbuf-2.0"},{"binary_name":"libgdk-pixbuf2.0-0","binary_version":"2.40.0+dfsg-3ubuntu0.5+esm3"},{"binary_version":"2.40.0+dfsg-3ubuntu0.5+esm3","binary_name":"libgdk-pixbuf2.0-bin"},{"binary_name":"libgdk-pixbuf2.0-common","binary_version":"2.40.0+dfsg-3ubuntu0.5+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16768.json"}},{"package":{"name":"gdk-pixbuf","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/gdk-pixbuf?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.42.6+dfsg-1build2","2.42.6+dfsg-1build3","2.42.6+dfsg-2ubuntu2","2.42.6+dfsg-2ubuntu3","2.42.8+dfsg-1","2.42.8+dfsg-1ubuntu0.1","2.42.8+dfsg-1ubuntu0.2","2.42.8+dfsg-1ubuntu0.3","2.42.8+dfsg-1ubuntu0.4","2.42.8+dfsg-1ubuntu0.5"],"ecosystem_specific":{"binaries":[{"binary_name":"gdk-pixbuf-tests","binary_version":"2.42.8+dfsg-1ubuntu0.5"},{"binary_version":"2.42.8+dfsg-1ubuntu0.5","binary_name":"gir1.2-gdkpixbuf-2.0"},{"binary_version":"2.42.8+dfsg-1ubuntu0.5","binary_name":"libgdk-pixbuf-2.0-0"},{"binary_name":"libgdk-pixbuf2.0-bin","binary_version":"2.42.8+dfsg-1ubuntu0.5"},{"binary_version":"2.42.8+dfsg-1ubuntu0.5","binary_name":"libgdk-pixbuf2.0-common"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16768.json"}},{"package":{"name":"gdk-pixbuf","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/gdk-pixbuf?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.42.10+dfsg-1build1","2.42.10+dfsg-3","2.42.10+dfsg-3ubuntu1","2.42.10+dfsg-3ubuntu2","2.42.10+dfsg-3ubuntu3","2.42.10+dfsg-3ubuntu3.1","2.42.10+dfsg-3ubuntu3.2","2.42.10+dfsg-3ubuntu3.3"],"ecosystem_specific":{"binaries":[{"binary_name":"gdk-pixbuf-tests","binary_version":"2.42.10+dfsg-3ubuntu3.3"},{"binary_name":"gir1.2-gdkpixbuf-2.0","binary_version":"2.42.10+dfsg-3ubuntu3.3"},{"binary_name":"libgdk-pixbuf-2.0-0","binary_version":"2.42.10+dfsg-3ubuntu3.3"},{"binary_version":"2.42.10+dfsg-3ubuntu3.3","binary_name":"libgdk-pixbuf2.0-bin"},{"binary_name":"libgdk-pixbuf2.0-common","binary_version":"2.42.10+dfsg-3ubuntu3.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16768.json"}},{"package":{"name":"gdk-pixbuf","ecosystem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