{"id":"CVE-2018-20543","aliases":["DEBIAN-CVE-2018-20543","EUVD-2018-13097","GHSA-8g8j-64gv-v6ch"],"status":"published","title":"There is an attempted excessive memory allocation at libxsmm_sparse_csc_reader in...","description":"There is an attempted excessive memory allocation at libxsmm_sparse_csc_reader in generator_spgemm_csc_reader.c in LIBXSMM 1.10 that will cause a denial of service.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01047,"percentile":0.64678,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2018-12-28T03:00:00Z","modified":"2026-10-23T18:04:47Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"libxsmm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.17-2","1.17-3","1.17-4"]},{"source":"osv","ecosystem":"Debian:13","package":"libxsmm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.17-4"]}],"products":[{"vendor":"libxsmm_project","product":"libxsmm"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1652634","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20543"},{"url":"https://github.com/advisories/GHSA-8g8j-64gv-v6ch"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-20543","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2018-20543","description":"There is an attempted excessive memory allocation at libxsmm_sparse_csc_reader in generator_spgemm_csc_reader.c in LIBXSMM 1.10 that will cause a denial of service.","status":"published","published":"2018-12-28T03:00:00Z","modified":"2024-08-05T12:05:17.341Z","updated_at":"2026-11-02T14:34:59.872731Z"}],"euvd":[{"id":"EUVD-2018-13097","description":"There is an attempted excessive memory allocation at libxsmm_sparse_csc_reader in generator_spgemm_csc_reader.c in LIBXSMM 1.10 that will cause a denial of service.","status":"published","published":"2018-12-28T03:00:00Z","modified":"2024-08-05T12:05:17Z","updated_at":"2026-11-03T02:39:30.323824Z"}],"ghsa":[{"id":"GHSA-8g8j-64gv-v6ch","title":"There is an attempted excessive memory allocation at libxsmm_sparse_csc_reader in...","description":"There is an attempted excessive memory allocation at libxsmm_sparse_csc_reader in generator_spgemm_csc_reader.c in LIBXSMM 1.10 that will cause a denial of service.","status":"published","published":"2022-05-14T01:41:35Z","modified":"2023-02-02T05:04:07Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:51:47.403205Z"}],"nvd":[{"id":"CVE-2018-20543","description":"There is an attempted excessive memory allocation at libxsmm_sparse_csc_reader in generator_spgemm_csc_reader.c in LIBXSMM 1.10 that will cause a denial of service.","status":"published","published":"2018-12-28T16:29:04.8Z","modified":"2026-06-17T01:53:03.07Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:04:52.056758Z"}],"osv":[{"id":"CVE-2018-20543","description":"There is an attempted excessive memory allocation at libxsmm_sparse_csc_reader in generator_spgemm_csc_reader.c in LIBXSMM 1.10 that will cause a denial of service.","status":"published","published":"2018-12-28T16:29:04.8Z","modified":"2026-03-14T09:28:59.439057Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:09.145458Z"},{"id":"DEBIAN-CVE-2018-20543","description":"There is an attempted excessive memory allocation at libxsmm_sparse_csc_reader in generator_spgemm_csc_reader.c in LIBXSMM 1.10 that will cause a denial of service.","status":"published","published":"2018-12-28T16:29:04.8Z","modified":"2026-10-23T18:04:47.384931607Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:30.57382Z"}]}}