{"id":"UBUNTU-CVE-2026-111158","details":"EarthScope libmseed through 3.5.4 contains a heap out-of-bounds read vulnerability in ms3_detect() in parseutils.c that reads past truncated miniSEED 2 record buffers. Attackers can supply a 40 to 47 byte buffer passing MS2_ISVALIDHEADER to msr3_parse() or ms3_detect(), over-reading up to 8 bytes and potentially crashing the process.","modified":"2026-10-17T12:58:04.100865158Z","published":"2026-10-16T00:00:00Z","upstream":["CVE-2026-111158"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-111158"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-111158"},{"type":"REPORT","url":"https://github.com/EarthScope/libmseed"},{"type":"REPORT","url":"https://github.com/EarthScope/libmseed/blob/d6e6ad306de5b7bdde072e5a5e3d58ddcc11abd8/parseutils.c#L192-L234"},{"type":"REPORT","url":"https://github.com/EarthScope/libmseed/commit/c93a36a1381e944b59b10967342ee1cb94304223"},{"type":"REPORT","url":"https://hackmd.io/@haind-pwn/libmseed-ms3detect-short-header-oob-read"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/earthscope-libmseed-through-3.5.4-heap-out-of-bounds-read-via-ms3-detect"}],"affected":[{"package":{"name":"libmseed","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libmseed?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.19.5-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmseed2","binary_version":"2.19.5-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111158.json"}},{"package":{"name":"libmseed","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libmseed?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.19.6-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmseed2","binary_version":"2.19.6-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111158.json"}},{"package":{"name":"libmseed","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libmseed?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.19.6-1","2.19.6-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libmseed2","binary_version":"2.19.6-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111158.json"}},{"package":{"name":"libmseed","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libmseed?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.19.8-1","2.19.8-1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmseed2t64","binary_version":"2.19.8-1ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111158.json"}},{"package":{"name":"libmseed","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/libmseed?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.19.8-1ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_name":"libmseed2t64","binary_version":"2.19.8-1ubuntu3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111158.json"}},{"package":{"name":"libmseed","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libmseed?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.19.8-1ubuntu2","2.19.8-1ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_name":"libmseed2t64","binary_version":"2.19.8-1ubuntu3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111158.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"}]}