{"id":"UBUNTU-CVE-2024-45192","details":"An issue was discovered in Matrix libolm through 3.2.16. Cache-timing attacks can occur due to use of base64 when decoding group session keys. This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.","modified":"2026-01-20T18:23:12.411426Z","published":"2024-08-22T16:15:00Z","upstream":["CVE-2024-45192"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-45192"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-45192"},{"type":"REPORT","url":"https://soatok.blog/2024/08/14/security-issues-in-matrixs-olm-library/"},{"type":"REPORT","url":"https://gitlab.matrix.org/matrix-org/olm/-/commit/6d4b5b07887821a95b144091c8497d09d377f985"},{"type":"REPORT","url":"https://gitlab.matrix.org/matrix-org/olm/"},{"type":"REPORT","url":"https://news.ycombinator.com/item?id=41249371"}],"affected":[{"package":{"name":"olm","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/olm@2.2.2+git20170526.0fd768e+dfsg-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.2+git20170526.0fd768e+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.2.2+git20170526.0fd768e+dfsg-1","binary_name":"libolm-dev"},{"binary_version":"2.2.2+git20170526.0fd768e+dfsg-1","binary_name":"libolm2"},{"binary_version":"2.2.2+git20170526.0fd768e+dfsg-1","binary_name":"python-olm"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45192.json"}},{"package":{"name":"olm","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/olm@3.1.3+dfsg-2ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.3+dfsg-2","3.1.3+dfsg-2build1","3.1.3+dfsg-2build2","3.1.3+dfsg-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.1.3+dfsg-2ubuntu0.1~esm1","binary_name":"libolm-dev"},{"binary_version":"3.1.3+dfsg-2ubuntu0.1~esm1","binary_name":"libolm3"},{"binary_version":"3.1.3+dfsg-2ubuntu0.1~esm1","binary_name":"python3-olm"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45192.json"}},{"package":{"name":"olm","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/olm@3.2.10~dfsg-6ubuntu1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.1~dfsg-7ubuntu2","3.2.1~dfsg-7ubuntu3","3.2.10~dfsg-4ubuntu1","3.2.10~dfsg-5ubuntu1","3.2.10~dfsg-6ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.2.10~dfsg-6ubuntu1","binary_name":"libjs-olm"},{"binary_version":"3.2.10~dfsg-6ubuntu1","binary_name":"libolm-dev"},{"binary_version":"3.2.10~dfsg-6ubuntu1","binary_name":"libolm3"},{"binary_version":"3.2.10~dfsg-6ubuntu1","binary_name":"python3-olm"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45192.json"}},{"package":{"name":"olm","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/olm@3.2.16+dfsg-2?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.13~dfsg-1ubuntu1","3.2.15~dfsg-1ubuntu1","3.2.16+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.2.16+dfsg-2","binary_name":"libjs-olm"},{"binary_version":"3.2.16+dfsg-2","binary_name":"libolm-dev"},{"binary_version":"3.2.16+dfsg-2","binary_name":"libolm3"},{"binary_version":"3.2.16+dfsg-2","binary_name":"python3-olm"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45192.json"}},{"package":{"name":"olm","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/olm@3.2.16+dfsg-3?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.16+dfsg-3"],"ecosystem_specific":{"binaries":[{"binary_version":"3.2.16+dfsg-3","binary_name":"libolm-dev"},{"binary_version":"3.2.16+dfsg-3","binary_name":"libolm3"},{"binary_version":"3.2.16+dfsg-3","binary_name":"python3-olm"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45192.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}