{"id":"USN-4957-1","summary":"djvulibre vulnerabilities","details":"It was discovered that DjVuLibre incorrectly handled certain memory\noperations. If a user or automated system were tricked into processing a\nspecially crafted DjVu file, a remote attacker could cause applications\nto hang or crash, resulting in a denial of service, or possibly execute\narbitrary code.\n","modified":"2026-04-22T10:15:01.576255Z","published":"2021-05-17T17:11:40Z","related":["UBUNTU-CVE-2021-32490","UBUNTU-CVE-2021-32491","UBUNTU-CVE-2021-32492","UBUNTU-CVE-2021-32493","UBUNTU-CVE-2021-3500"],"upstream":["CVE-2021-32490","CVE-2021-32491","CVE-2021-32492","CVE-2021-32493","CVE-2021-3500","UBUNTU-CVE-2021-32490","UBUNTU-CVE-2021-32491","UBUNTU-CVE-2021-32492","UBUNTU-CVE-2021-32493","UBUNTU-CVE-2021-3500"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4957-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3500"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-32490"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-32491"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-32492"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-32493"}],"affected":[{"package":{"name":"djvulibre","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/djvulibre@3.5.27.1-8ubuntu0.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.27.1-8ubuntu0.3"}]}],"versions":["3.5.27.1-7","3.5.27.1-8","3.5.27.1-8ubuntu0.1","3.5.27.1-8ubuntu0.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.5.27.1-8ubuntu0.3","binary_name":"djview"},{"binary_name":"djview3","binary_version":"3.5.27.1-8ubuntu0.3"},{"binary_name":"djvulibre-bin","binary_version":"3.5.27.1-8ubuntu0.3"},{"binary_name":"djvulibre-desktop","binary_version":"3.5.27.1-8ubuntu0.3"},{"binary_name":"djvuserve","binary_version":"3.5.27.1-8ubuntu0.3"},{"binary_name":"libdjvulibre-text","binary_version":"3.5.27.1-8ubuntu0.3"},{"binary_name":"libdjvulibre21","binary_version":"3.5.27.1-8ubuntu0.3"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-3500","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2021-32490","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-32491","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2021-32492","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2021-32493","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4957-1.json"}},{"package":{"name":"djvulibre","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/djvulibre@3.5.27.1-14ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.27.1-14ubuntu0.1"}]}],"versions":["3.5.27.1-13","3.5.27.1-13ubuntu1","3.5.27.1-14","3.5.27.1-14build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"djview","binary_version":"3.5.27.1-14ubuntu0.1"},{"binary_name":"djview3","binary_version":"3.5.27.1-14ubuntu0.1"},{"binary_name":"djvulibre-bin","binary_version":"3.5.27.1-14ubuntu0.1"},{"binary_version":"3.5.27.1-14ubuntu0.1","binary_name":"djvulibre-desktop"},{"binary_name":"djvuserve","binary_version":"3.5.27.1-14ubuntu0.1"},{"binary_name":"libdjvulibre-text","binary_version":"3.5.27.1-14ubuntu0.1"},{"binary_name":"libdjvulibre21","binary_version":"3.5.27.1-14ubuntu0.1"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2021-3500","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2021-32490","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-32491"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2021-32492"},{"id":"CVE-2021-32493","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4957-1.json"}}],"schema_version":"1.7.5"}