{"id":"CVE-2026-112008","aliases":["DEBIAN-CVE-2026-112008","EUVD-2026-103461","GHSA-xx2v-hjr6-76fh","UBUNTU-CVE-2026-112008"],"status":"published","title":"libmng through 2.0.3 Heap Buffer Overflow via ORDR Chunk Reader mng_read_ordr","description":"libmng through 2.0.3 contains a heap-based buffer overflow vulnerability in mng_read_ordr() that allows attackers to corrupt heap memory because ORDR entry buffers are sized by 5-byte on-wire records instead of 8-byte in-memory entries. Attackers can supply a crafted MNG file with MHDR, DHDR and a multi-record ORDR chunk to applications calling mng_read or mng_readdisplay, writing attacker-controlled data past the allocation and crashing the application.","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":"2026-11-12","score":0.00144,"percentile":0.03726,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-131"],"published":"2026-10-18T11:38:31Z","modified":"2026-10-28T20:15:43Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"libmng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.10+dfsg-3.1","2.0.3+dfsg-1","2.0.3+dfsg-2","2.0.3+dfsg-3","2.0.3+dfsg-4","2.0.3+dfsg-5"]},{"source":"osv","ecosystem":"Debian:13","package":"libmng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.10+dfsg-3.1","2.0.3+dfsg-1","2.0.3+dfsg-2","2.0.3+dfsg-3","2.0.3+dfsg-4","2.0.3+dfsg-5"]},{"source":"osv","ecosystem":"Debian:14","package":"libmng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.10+dfsg-3.1","2.0.3+dfsg-1","2.0.3+dfsg-2","2.0.3+dfsg-3","2.0.3+dfsg-4","2.0.3+dfsg-5"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libmng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.2-0ubuntu3"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libmng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.2-0ubuntu3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libmng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.3+dfsg-3"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libmng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.3+dfsg-3"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libmng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.3+dfsg-4","2.0.3+dfsg-4build1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libmng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.3+dfsg-5"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libmng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.3+dfsg-4build1","2.0.3+dfsg-5"]}],"products":[{"vendor":"libmng","product":"libmng"}],"references":[{"url":"https://hackmd.io/@haindpwn/libmng-ordr-chunk-store-oob-write","tags":["technical-description","exploit"]},{"url":"https://sourceforge.net/projects/libmng/files/libmng-devel/2.0.3/","tags":["product"]},{"url":"https://sourceforge.net/projects/libmng/","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/libmng-through-2.0.3-heap-buffer-overflow-via-ordr-chunk-reader-mng-read-ordr","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112008"},{"url":"https://sourceforge.net/projects/libmng"},{"url":"https://sourceforge.net/projects/libmng/files/libmng-devel/2.0.3"},{"url":"https://github.com/advisories/GHSA-xx2v-hjr6-76fh"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-112008","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-112008","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-112008","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-112008","title":"libmng through 2.0.3 Heap Buffer Overflow via ORDR Chunk Reader mng_read_ordr","description":"libmng through 2.0.3 contains a heap-based buffer overflow vulnerability in mng_read_ordr() that allows attackers to corrupt heap memory because ORDR entry buffers are sized by 5-byte on-wire records instead of 8-byte in-memory entries. Attackers can supply a crafted MNG file with MHDR, DHDR and a multi-record ORDR chunk to applications calling mng_read or mng_readdisplay, writing attacker-controlled data past the allocation and crashing the application.","status":"published","published":"2026-10-18T11:38:31.288Z","modified":"2026-10-19T19:04:44.302Z","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-131"],"updated_at":"2026-11-02T13:44:51.734189Z"}],"euvd":[{"id":"EUVD-2026-103461","description":"libmng through 2.0.3 contains a heap-based buffer overflow vulnerability in mng_read_ordr() that allows attackers to corrupt heap memory because ORDR entry buffers are sized by 5-byte on-wire records instead of 8-byte in-memory entries. Attackers can supply a crafted MNG file with MHDR, DHDR and a multi-record ORDR chunk to applications calling mng_read or mng_readdisplay, writing attacker-controlled data past the allocation and crashing the application.","status":"published","published":"2026-10-18T11:38:31Z","modified":"2026-10-19T19:04:44Z","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":"2026-11-02T16:59:49.097498Z"}],"ghsa":[{"id":"GHSA-xx2v-hjr6-76fh","title":"libmng through 2.0.3 contains a heap-based buffer overflow vulnerability in mng_read_ordr() that...","description":"libmng through 2.0.3 contains a heap-based buffer overflow vulnerability in mng_read_ordr() that allows attackers to corrupt heap memory because ORDR entry buffers are sized by 5-byte on-wire records instead of 8-byte in-memory entries. Attackers can supply a crafted MNG file with MHDR, DHDR and a multi-record ORDR chunk to applications calling mng_read or mng_readdisplay, writing attacker-controlled data past the allocation and crashing the application.","status":"published","published":"2026-10-18T12:30:26Z","modified":"2026-10-18T12:30:35Z","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-131"],"updated_at":"2026-11-02T15:13:54.281657Z"}],"nvd":[{"id":"CVE-2026-112008","description":"libmng through 2.0.3 contains a heap-based buffer overflow vulnerability in mng_read_ordr() that allows attackers to corrupt heap memory because ORDR entry buffers are sized by 5-byte on-wire records instead of 8-byte in-memory entries. Attackers can supply a crafted MNG file with MHDR, DHDR and a multi-record ORDR chunk to applications calling mng_read or mng_readdisplay, writing attacker-controlled data past the allocation and crashing the application.","status":"published","published":"2026-10-18T12:17:13.247Z","modified":"2026-10-19T21:14:14.15Z","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-131"],"updated_at":"2026-11-02T14:13:00.123071Z"}],"osv":[{"id":"DEBIAN-CVE-2026-112008","description":"libmng through 2.0.3 contains a heap-based buffer overflow vulnerability in mng_read_ordr() that allows attackers to corrupt heap memory because ORDR entry buffers are sized by 5-byte on-wire records instead of 8-byte in-memory entries. Attackers can supply a crafted MNG file with MHDR, DHDR and a multi-record ORDR chunk to applications calling mng_read or mng_readdisplay, writing attacker-controlled data past the allocation and crashing the application.","status":"published","published":"2026-10-18T12:17:13.247Z","modified":"2026-10-23T18:05:33.349611767Z","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-2026-112008","description":"libmng through 2.0.3 contains a heap-based buffer overflow vulnerability in mng_read_ordr() that allows attackers to corrupt heap memory because ORDR entry buffers are sized by 5-byte on-wire records instead of 8-byte in-memory entries. Attackers can supply a crafted MNG file with MHDR, DHDR and a multi-record ORDR chunk to applications calling mng_read or mng_readdisplay, writing attacker-controlled data past the allocation and crashing the application.","status":"published","published":"2026-10-18T12:17:00Z","modified":"2026-10-28T20:15:43.868649227Z","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"}]}}