{"id":"UBUNTU-CVE-2021-33798","details":"A null pointer dereference was found in libpano13, version libpano13-2.9.20. The flow allows attackers to cause a denial of service and potential code execute via a crafted file.","modified":"2026-05-20T16:05:02.336310606Z","published":"2023-07-07T18:15:00Z","upstream":["CVE-2021-33798"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33798"},{"type":"REPORT","url":"https://sourceforge.net/p/panotools/libpano13/ci/62aa7eed8fae5d8f247a2508a757f31000de386f/"},{"type":"REPORT","url":"https://groups.google.com/u/1/g/hugin-ptx/c/gLtz2vweD74"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-33798"}],"affected":[{"package":{"name":"libpano13","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libpano13?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.19+dfsg-1","2.9.19+dfsg-2","2.9.19+dfsg-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libpano13-3","binary_version":"2.9.19+dfsg-2ubuntu0.1~esm1"},{"binary_name":"libpano13-bin","binary_version":"2.9.19+dfsg-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33798.json"}},{"package":{"name":"libpano13","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libpano13?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.19+dfsg-2build1","2.9.19+dfsg-3","2.9.19+dfsg-3ubuntu0.18.04.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libpano13-3","binary_version":"2.9.19+dfsg-3ubuntu0.18.04.1~esm1"},{"binary_version":"2.9.19+dfsg-3ubuntu0.18.04.1~esm1","binary_name":"libpano13-bin"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33798.json"}},{"package":{"name":"libpano13","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libpano13?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.19+dfsg-3","2.9.19+dfsg-3ubuntu0.20.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.9.19+dfsg-3ubuntu0.20.04.1","binary_name":"libpano13-3"},{"binary_version":"2.9.19+dfsg-3ubuntu0.20.04.1","binary_name":"libpano13-bin"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33798.json"}},{"package":{"name":"libpano13","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/libpano13?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.20~rc3+dfsg-1","2.9.20~rc3+dfsg-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libpano13-3","binary_version":"2.9.20~rc3+dfsg-1ubuntu0.1~esm1"},{"binary_version":"2.9.20~rc3+dfsg-1ubuntu0.1~esm1","binary_name":"libpano13-bin"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33798.json"}},{"package":{"name":"libpano13","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libpano13?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.22~rc2+dfsg-1","2.9.22+dfsg-1","2.9.22+dfsg-1.1","2.9.22+dfsg-1.1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libpano13-3t64","binary_version":"2.9.22+dfsg-1.1build1"},{"binary_name":"libpano13-bin","binary_version":"2.9.22+dfsg-1.1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33798.json"}},{"package":{"name":"libpano13","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libpano13?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.22+dfsg-1.1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libpano13-3t64","binary_version":"2.9.22+dfsg-1.1build1"},{"binary_name":"libpano13-bin","binary_version":"2.9.22+dfsg-1.1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33798.json"}},{"package":{"name":"libpano13","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libpano13?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.22+dfsg-1.1build1","2.9.23+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libpano13-3t64","binary_version":"2.9.23+dfsg-1"},{"binary_name":"libpano13-bin","binary_version":"2.9.23+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33798.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}