{"id":"USN-4957-2","summary":"djvulibre vulnerabilities","details":"USN-4957-1 fixed several vulnerabilities in DjVuLibre. This update provides\nthe corresponding update for Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that DjVuLibre incorrectly handled certain memory\n operations. If a user or automated system were tricked into processing a\n specially crafted DjVu file, a remote attacker could cause applications\n to hang or crash, resulting in a denial of service, or possibly execute\n arbitrary code.\n","modified":"2026-02-10T04:42:12Z","published":"2021-05-18T14:39:10Z","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-4957-2"},{"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:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/djvulibre@3.5.27.1-5ubuntu0.1+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.27.1-5ubuntu0.1+esm1"}]}],"versions":["3.5.27.1-3","3.5.27.1-4","3.5.27.1-5","3.5.27.1-5ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.5.27.1-5ubuntu0.1+esm1","binary_name":"djview"},{"binary_version":"3.5.27.1-5ubuntu0.1+esm1","binary_name":"djview3"},{"binary_version":"3.5.27.1-5ubuntu0.1+esm1","binary_name":"djvulibre-bin"},{"binary_version":"3.5.27.1-5ubuntu0.1+esm1","binary_name":"djvulibre-desktop"},{"binary_version":"3.5.27.1-5ubuntu0.1+esm1","binary_name":"djvuserve"},{"binary_version":"3.5.27.1-5ubuntu0.1+esm1","binary_name":"libdjvulibre-dev"},{"binary_version":"3.5.27.1-5ubuntu0.1+esm1","binary_name":"libdjvulibre-text"},{"binary_version":"3.5.27.1-5ubuntu0.1+esm1","binary_name":"libdjvulibre21"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4957-2.json","cves_map":{"cves":[{"id":"CVE-2021-3500","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2021-32490","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"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"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2021-32492","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2021-32493","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}}],"schema_version":"1.7.3"}