{"id":"UBUNTU-CVE-2023-36746","details":"Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex len functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the handling of `len` in `fstWritex` when parsing the time table.","modified":"2026-01-20T17:50:44.548442Z","published":"2024-01-08T15:15:00Z","upstream":["CVE-2023-36746"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-36746"},{"type":"REPORT","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1793"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-36746"}],"affected":[{"package":{"name":"gtkwave","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/gtkwave@3.3.66-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.66-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.3.66-1","binary_name":"gtkwave"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-36746.json"}},{"package":{"name":"gtkwave","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/gtkwave@3.3.86-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.82-1","3.3.86-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.3.86-1","binary_name":"gtkwave"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-36746.json"}},{"package":{"name":"gtkwave","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/gtkwave@3.3.103-1build1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.101-2","3.3.102-1","3.3.103-1","3.3.103-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.3.103-1build1","binary_name":"gtkwave"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-36746.json"}},{"package":{"name":"gtkwave","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/gtkwave@3.3.104-2build1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.104-2","3.3.104-2build1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.3.104-2build1","binary_name":"gtkwave"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-36746.json"}},{"package":{"name":"gtkwave","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/gtkwave@3.3.116-1build2?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.116-1","3.3.116-1build1","3.3.116-1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.3.116-1build2","binary_name":"gtkwave"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-36746.json"}},{"package":{"name":"gtkwave","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/gtkwave@3.3.125-1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.121-1","3.3.125-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.3.125-1","binary_name":"gtkwave"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-36746.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}