{"id":"CVE-2023-36747","aliases":["DEBIAN-CVE-2023-36747","DLA-3785-1","DSA-5653-1","EUVD-2023-40690","GHSA-cf7q-84pj-gw7g","UBUNTU-CVE-2023-36747"],"status":"published","title":"Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex...","description":"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 `beg_time` does not match the start of the time table.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00382,"percentile":0.32455,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119","CWE-787"],"published":"2024-01-08T14:47:55Z","modified":"2026-10-26T18:03:05Z","fixes":[{"ecosystem":"Debian:12","package":"gtkwave","fixed_in":["3.3.118-0.1~deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"gtkwave","fixed_in":["3.3.118-0.1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"gtkwave","fixed_in":["3.3.118-0.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.118-0.1~deb12u1"}]}],"versions":["3.3.114-2","3.3.115-1","3.3.116-1"]},{"source":"osv","ecosystem":"Debian:13","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.118-0.1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.118-0.1"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.98+really3.3.118-0+deb10u1"}]}],"versions":["3.3.98-1"],"bundled":82},{"source":"osv","ecosystem":"Debian:11","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.104+really3.3.118-0+deb11u1"}]}],"versions":["3.3.104-2"],"bundled":82},{"source":"osv","ecosystem":"Debian:12","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.118-0.1~deb12u1"}]}],"versions":["3.3.114-2","3.3.115-1","3.3.116-1"],"bundled":82},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.66-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.82-1","3.3.86-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.101-2","3.3.102-1","3.3.103-1","3.3.103-1build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.104-2","3.3.104-2build1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.116-1","3.3.116-1build1","3.3.116-1build2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.121-1","3.3.125-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.126-1","3.3.127-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"gtkwave","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.125-1","3.3.126-1"]}],"products":[{"vendor":"gtkwave","product":"gtkwave"},{"vendor":"tonybybell","product":"gtkwave"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1793","tags":["x_transferred","Exploit","Third Party Advisory","evidence","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/04/msg00007.html","tags":["x_transferred","web"]},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1793","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-36747"},{"url":"https://github.com/advisories/GHSA-cf7q-84pj-gw7g"},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-36747","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-36747","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-36747","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-36747","description":"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 `beg_time` does not match the start of the time table.","status":"published","published":"2024-01-08T14:47:55.712Z","modified":"2025-11-04T18:15:16.152Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:35:28.218693Z"}],"euvd":[{"id":"EUVD-2023-40690","description":"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 `beg_time` does not match the start of the time table.","status":"published","published":"2024-01-08T14:47:55Z","modified":"2025-11-04T18:15:16Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:49:25.004858Z"}],"ghsa":[{"id":"GHSA-cf7q-84pj-gw7g","title":"Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex...","description":"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 `beg_time` does not match the start of the time table.","status":"published","published":"2024-01-08T15:30:28Z","modified":"2024-04-09T21:31:53Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119","CWE-787"],"updated_at":"2026-11-02T14:57:05.342619Z"}],"nvd":[{"id":"CVE-2023-36747","description":"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 `beg_time` does not match the start of the time table.","status":"published","published":"2024-01-08T15:15:14.19Z","modified":"2026-06-17T06:06:59.537Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-119","CWE-787"],"updated_at":"2026-11-02T14:09:00.788714Z"}],"osv":[{"id":"CVE-2023-36747","description":"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 `beg_time` does not match the start of the time table.","status":"published","published":"2024-01-08T15:15:14.19Z","modified":"2026-03-15T14:11:36.552133Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:32.510144Z"},{"id":"DEBIAN-CVE-2023-36747","description":"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 `beg_time` does not match the start of the time table.","status":"published","published":"2024-01-08T15:15:14.19Z","modified":"2026-10-26T18:03:05.537772976Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:39.980321Z"},{"id":"UBUNTU-CVE-2023-36747","description":"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 `beg_time` does not match the start of the time table.","status":"published","published":"2024-01-08T15:15:00Z","modified":"2026-10-17T12:56:24.07394213Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:54:21.882004Z"},{"id":"DLA-3785-1","title":"gtkwave - security update","status":"published","published":"2024-04-09T00:00:00Z","modified":"2026-03-09T01:17:48.190506Z","updated_at":"2026-11-02T15:46:12.203458Z"},{"id":"DSA-5653-1","title":"gtkwave - security update","status":"published","published":"2024-04-03T00:00:00Z","modified":"2026-03-09T02:11:44.634021Z","updated_at":"2026-11-02T15:46:17.892347Z"}]}}