{"id":"CVE-2024-45192","aliases":["DEBIAN-CVE-2024-45192","EUVD-2024-41368","GHSA-5qxq-95fv-whxm","UBUNTU-CVE-2024-45192"],"status":"published","title":"An issue was discovered in Matrix libolm (aka Olm) through 3.2.16. Cache-timing attacks can occur...","description":"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.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00536,"percentile":0.45445,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-385"],"published":"2024-08-22T00:00:00Z","modified":"2026-11-02T12:02:49Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"olm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.13~dfsg-1","3.2.15~dfsg-1","3.2.16+dfsg-1","3.2.16+dfsg-2","3.2.16+dfsg-3","3.2.16+dfsg-4","3.2.16+dfsg-5","3.2.16+dfsg-6"]},{"source":"osv","ecosystem":"Debian:13","package":"olm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.16+dfsg-3","3.2.16+dfsg-4","3.2.16+dfsg-5","3.2.16+dfsg-6"]},{"source":"osv","ecosystem":"Debian:14","package":"olm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.16+dfsg-3","3.2.16+dfsg-4","3.2.16+dfsg-5","3.2.16+dfsg-6"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"olm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.2+git20170526.0fd768e+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"olm","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"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"olm","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"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"olm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.13~dfsg-1ubuntu1","3.2.15~dfsg-1ubuntu1","3.2.16+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"olm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.16+dfsg-3"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"olm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.16+dfsg-5","3.2.16+dfsg-6"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"olm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.16+dfsg-3","3.2.16+dfsg-5"]}],"products":[{"vendor":"matrix","product":"olm"}],"references":[{"url":"https://soatok.blog/2024/08/14/security-issues-in-matrixs-olm-library/","tags":["Exploit","article","report"]},{"url":"https://gitlab.matrix.org/matrix-org/olm/","tags":["Product","package","report"]},{"url":"https://news.ycombinator.com/item?id=41249371","tags":["Issue Tracking","web","report"]},{"url":"https://gitlab.matrix.org/matrix-org/olm/-/commit/6d4b5b07887821a95b144091c8497d09d377f985","tags":["Patch","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-45192","tags":["advisory"]},{"url":"https://gitlab.matrix.org/matrix-org/olm"},{"url":"https://soatok.blog/2024/08/14/security-issues-in-matrixs-olm-library"},{"url":"https://github.com/advisories/GHSA-5qxq-95fv-whxm"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45192.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-45192","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-45192","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-45192","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2024-45192","description":"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.","status":"published","published":"2024-08-22T00:00:00Z","modified":"2024-09-10T18:26:13.304Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-385"],"updated_at":"2026-11-02T14:34:08.16279Z"}],"euvd":[{"id":"EUVD-2024-41368","description":"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.","status":"published","published":"2024-08-22T00:00:00Z","modified":"2024-09-10T18:26:13Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:55:58.744683Z"}],"ghsa":[{"id":"GHSA-5qxq-95fv-whxm","title":"An issue was discovered in Matrix libolm (aka Olm) through 3.2.16. Cache-timing attacks can occur...","description":"An issue was discovered in Matrix libolm (aka Olm) through 3.2.16. Cache-timing attacks can occur due to use of base64 when decoding group session keys. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.","status":"published","published":"2024-08-22T18:31:22Z","modified":"2024-08-22T21:32:33Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-385"],"updated_at":"2026-11-02T14:58:03.52689Z"}],"nvd":[{"id":"CVE-2024-45192","description":"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.","status":"published","published":"2024-08-22T16:15:10.237Z","modified":"2026-06-17T07:53:46.153Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-385"],"updated_at":"2026-11-02T14:10:19.870727Z"}],"osv":[{"id":"CVE-2024-45192","description":"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.","status":"published","published":"2024-08-22T00:00:00Z","modified":"2026-10-28T02:30:26.471690435Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:42.790566Z"},{"id":"DEBIAN-CVE-2024-45192","description":"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.","status":"published","published":"2024-08-22T16:15:10.237Z","modified":"2026-11-02T12:02:49.142519324Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:43.473331Z"},{"id":"UBUNTU-CVE-2024-45192","description":"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.","status":"published","published":"2024-08-22T16:15:00Z","modified":"2026-10-17T12:56:45.461759102Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:55:02.636559Z"}]}}