{"id":"CVE-2026-111136","aliases":["DEBIAN-CVE-2026-111136","EUVD-2026-102263","GHSA-6p4q-22pq-927g","UBUNTU-CVE-2026-111136","openSUSE-SU-2026:12199-1"],"status":"published","title":"libInstPatch through 1.1.7 Heap Out-of-Bounds Write via ipatch_sf2_gen_is_valid","description":"libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00195,"percentile":0.09313,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2026-10-15T18:57:29Z","modified":"2026-11-01T22:00:06Z","fixes":[{"ecosystem":"Debian:14","package":"libinstpatch","fixed_in":["1.1.8-1"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"libinstpatch","fixed_in":["1.1.8-1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libinstpatch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.6-1","1.1.7-1","1.1.7-1.1","1.1.8-1"]},{"source":"osv","ecosystem":"Debian:13","package":"libinstpatch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.6-1","1.1.7-1","1.1.7-1.1","1.1.8-1"]},{"source":"osv","ecosystem":"Debian:14","package":"libinstpatch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.8-1"}]}],"versions":["1.1.6-1","1.1.7-1","1.1.7-1.1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libinstpatch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.0-4"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libinstpatch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.0-6","1.0.0-7"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libinstpatch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.0-7","1.1.2-2","1.1.2-2build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libinstpatch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.6-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libinstpatch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.6-1","1.1.6-1build1","1.1.6-1build2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libinstpatch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.7-1.1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libinstpatch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.6-1build2","1.1.7-1.1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"libinstpatch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.8-1.1"}]}]}],"products":[{"vendor":"swami","product":"libinstpatch"}],"references":[{"url":"https://hackmd.io/@haind-pwn/libinstpatch-sf2-generator-id-oob-write","tags":["technical-description","exploit","article","report"]},{"url":"https://github.com/swami/libinstpatch/blob/4ff1939ccc24de204d41b3ab734fc1aece919184/libinstpatch/IpatchSF2Gen.c#L189-L205","tags":["technical-description","article","report"]},{"url":"https://github.com/swami/libinstpatch/blob/4ff1939ccc24de204d41b3ab734fc1aece919184/libinstpatch/IpatchSF2Reader.c#L1355-L1370","tags":["technical-description","article","report"]},{"url":"https://github.com/swami/libinstpatch/blob/4ff1939ccc24de204d41b3ab734fc1aece919184/libinstpatch/IpatchSF2Reader.c#L954-L969","tags":["technical-description","article","report"]},{"url":"https://github.com/swami/libinstpatch","tags":["product","package","report"]},{"url":"https://www.vulncheck.com/advisories/libinstpatch-through-1.1.7-heap-out-of-bounds-write-via-ipatch-sf2-gen-is-valid","tags":["third-party-advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111136","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-6p4q-22pq-927g"},{"url":"https://github.com","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111136.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-111136","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-111136","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-111136","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-111136","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-111136","title":"libInstPatch through 1.1.7 Heap Out-of-Bounds Write via ipatch_sf2_gen_is_valid","description":"libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.","status":"published","published":"2026-10-15T18:57:29.888Z","modified":"2026-10-15T19:48:10.296Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:20:15.34316Z"}],"euvd":[{"id":"EUVD-2026-102263","description":"libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.","status":"published","published":"2026-10-15T18:57:29Z","modified":"2026-10-15T19:48:10Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:00:10.305867Z"}],"ghsa":[{"id":"GHSA-6p4q-22pq-927g","title":"libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2...","description":"libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.","status":"published","published":"2026-10-15T21:36:04Z","modified":"2026-10-15T21:36:12Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:13:49.297576Z"}],"nvd":[{"id":"CVE-2026-111136","description":"libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.","status":"published","published":"2026-10-15T19:17:27.49Z","modified":"2026-10-16T18:25:45.343Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:12:59.751798Z"}],"osv":[{"id":"CVE-2026-111136","title":"libInstPatch through 1.1.7 Heap Out-of-Bounds Write via ipatch_sf2_gen_is_valid","description":"libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.","status":"published","published":"2026-10-15T18:57:29.888Z","modified":"2026-10-28T02:31:10.978147958Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:44:55.61515Z"},{"id":"DEBIAN-CVE-2026-111136","description":"libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.","status":"published","published":"2026-10-15T19:17:27.49Z","modified":"2026-11-01T22:00:06.826830632Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:45:49.824149Z"},{"id":"UBUNTU-CVE-2026-111136","description":"libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.","status":"published","published":"2026-10-15T19:17:00Z","modified":"2026-10-28T17:50:35Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium"},{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:55:59.591851Z"},{"id":"openSUSE-SU-2026:12199-1","title":"libinstpatch-1_0-2-1.1.8-1.1 on GA media","description":"These are all security issues fixed in the libinstpatch-1_0-2-1.1.8-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-10-20T00:00:00Z","modified":"2026-10-21T17:23:13.752183542Z","updated_at":"2026-11-02T16:58:40.245664Z"}]}}