{"id":"UBUNTU-CVE-2026-110591","details":"OW2 ASM 1.4.3 before 9.11 contains an excessive resource consumption vulnerability in Analyzer.analyze() that allows attackers to exhaust memory and CPU via crafted class files. Attackers can supply class files analysed through BasicVerifier, SimpleVerifier or SourceInterpreter to trigger unbounded per-instruction Frame allocation and fix point iterations, causing denial of service.","modified":"2026-10-17T12:59:52.149110552Z","published":"2026-10-15T00:00:00Z","upstream":["CVE-2026-110591"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-110591"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-110591"},{"type":"REPORT","url":"https://asm.ow2.io/versions.html"},{"type":"REPORT","url":"https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/asm-analysis/src/main/java/org/objectweb/asm/tree/analysis/Analyzer.java#L150"},{"type":"REPORT","url":"https://gitlab.ow2.org/asm/asm/-/commit/4632a2283f1192fd0e93035661b49568a7cb8b6c"},{"type":"REPORT","url":"https://gitlab.ow2.org/asm/asm/-/merge_requests/468"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/ow2-asm-1.4.3-before-9.11-excessive-resource-consumption-via-analyzer"}],"affected":[{"package":{"name":"asm","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/asm?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0~alpha-1","6.0~alpha-2","6.0-1","7.0-1~18.04"],"ecosystem_specific":{"binaries":[{"binary_name":"libasm-java","binary_version":"7.0-1~18.04"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110591.json"}},{"package":{"name":"asm","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/asm?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.1-2","7.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libasm-java","binary_version":"7.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110591.json"}},{"package":{"name":"asm","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/asm?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.1-1","9.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libasm-java","binary_version":"9.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110591.json"}},{"package":{"name":"asm","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/asm?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.4-1","9.5-1","9.6~us1-0ubuntu1","9.7-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libasm-java","binary_version":"9.7-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110591.json"}},{"package":{"name":"asm","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/asm?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.9.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libasm-java","binary_version":"9.9.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110591.json"}},{"package":{"name":"asm","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/asm?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.8-1","9.8-2","9.9.1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"9.9.1-1","binary_name":"libasm-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110591.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}