{"id":"USN-6280-1","summary":"pypdf2 vulnerability","details":"It was discovered that PyPDF2 incorrectly handled PDF files with certain\nmarkers. If a user or automated system were tricked into processing a\nspecially crafted file, an attacker could possibly use this issue to\nconsume system resources, resulting in a denial of service.\n","modified":"2026-02-10T04:43:14Z","published":"2023-08-10T00:19:56Z","related":["UBUNTU-CVE-2023-36810"],"upstream":["CVE-2023-36810","UBUNTU-CVE-2023-36810"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6280-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-36810"}],"affected":[{"package":{"name":"pypdf2","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/pypdf2@1.25.1-1ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.25.1-1ubuntu0.1~esm2"}]}],"versions":["1.23+git20141008-1","1.25.1-1","1.25.1-1ubuntu0.1~esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.25.1-1ubuntu0.1~esm2","binary_name":"python-pypdf2"},{"binary_version":"1.25.1-1ubuntu0.1~esm2","binary_name":"python3-pypdf2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6280-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2023-36810","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}]}}},{"package":{"name":"pypdf2","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/pypdf2@1.26.0-2ubuntu0.1~esm2?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.0-2ubuntu0.1~esm2"}]}],"versions":["1.26.0-2","1.26.0-2ubuntu0.1~esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.26.0-2ubuntu0.1~esm2","binary_name":"python-pypdf2"},{"binary_version":"1.26.0-2ubuntu0.1~esm2","binary_name":"python3-pypdf2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6280-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2023-36810","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}]}}},{"package":{"name":"pypdf2","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/pypdf2@1.26.0-3ubuntu1.20.04.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.0-3ubuntu1.20.04.2"}]}],"versions":["1.26.0-2","1.26.0-3ubuntu1","1.26.0-3ubuntu1.20.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.26.0-3ubuntu1.20.04.2","binary_name":"python-pypdf2"},{"binary_version":"1.26.0-3ubuntu1.20.04.2","binary_name":"python3-pypdf2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6280-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2023-36810","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}]}}},{"package":{"name":"pypdf2","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/pypdf2@1.26.0-4ubuntu0.22.04.2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.0-4ubuntu0.22.04.2"}]}],"versions":["1.26.0-4","1.26.0-4ubuntu0.22.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.26.0-4ubuntu0.22.04.2","binary_name":"python3-pypdf2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6280-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2023-36810","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}]}}}],"schema_version":"1.7.3"}